@article{MTMT:34514446, title = {Heat and Wheat: Adaptation strategies with respect to heat shock proteins and antioxidant potential; an era of climate change}, url = {https://m2.mtmt.hu/api/publication/34514446}, author = {Fozia, Abasi and Naveed, Iqbal Raja and Zia-ur-Rehman, Mashwani and Maria, Ehsan and Habib, Ali and Muhammad, Shahbaz}, doi = {10.1016/j.ijbiomac.2023.128379}, journal-iso = {INT J BIOL MACROMOL}, journal = {INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES}, volume = {256}, unique-id = {34514446}, issn = {0141-8130}, year = {2024}, eissn = {1879-0003}, pages = {128379} } @article{MTMT:34653766, title = {Bacterial Strategies for Improving the Yield, Quality, and Adaptability of Oil Crops}, url = {https://m2.mtmt.hu/api/publication/34653766}, author = {Ma, Lige and Luo, Yu and Chen, Chen and Luo, Huan and Wang, Shuqi and Yuan, Yue and Yang, Wenhua and Liu, Can and Cao, Xulv and Li, Nannan}, doi = {10.3390/agriculture14010080}, journal-iso = {AGRICULTURE-BASEL}, journal = {AGRICULTURE-BASEL}, volume = {14}, unique-id = {34653766}, keywords = {YIELD; QUALITY; Adaptability; PGPB; oil crops; bacterial strategies}, year = {2024}, eissn = {2077-0472} } @article{MTMT:34479762, title = {Plant hormone ethylene: A leading edge in conferring drought stress tolerance}, url = {https://m2.mtmt.hu/api/publication/34479762}, author = {Nazir, Faroza and Poór, Péter and Gupta, Ravi and Kumari, Sarika and Nawaz, Kashif and Khan, M. Iqbal R.}, doi = {10.1111/ppl.14151}, journal-iso = {PHYSIOL PLANTARUM}, journal = {PHYSIOLOGIA PLANTARUM}, volume = {176}, unique-id = {34479762}, issn = {0031-9317}, abstract = {Agricultural sufficient productivity is of paramount importance for ensuring food security and conserving soil health to support the world's agronomy. Climatic abruptions have been emerging as one of the most nerve‐pressing issues for the sustainment of the planet Earth in the twenty‐first century. Among the various environmental constraints, drought stress stands out as a potent factor restricting crop growth and productivity. It triggers a myriad of intricate responses in plants to combat the underlying stress‐mediated adversities. Gaining a comprehensive understanding of the key physiological and molecular mechanisms that enable plants to withstand drought stress is crucial for developing effective strategies to enhance crop resilience. Ethylene, a gaseous plant hormone, influences the adaptive measures adopted by plants subjected to drought stress by regulating the drought stress‐mediated signal transduction‐associated responses. The present review article provides an in‐depth understanding of the critical roles of ethylene in enhancing plants' ability to restrain the severity of drought stress. It also highlights the significance of ethylene signaling components in regulating plant survival and drought stress tolerance. Additionally, we have illustrated the additive and antagonistic interactions of ethylene with other plant growth regulators, which instigate the tolerance responses. Conclusively, this review emphasizes the significance of complex networks involved in ethylene‐mediated drought tolerance, providing valuable insights for future research and uncovering novel studies in the field of ethylene biology.}, year = {2024}, eissn = {1399-3054}, orcid-numbers = {Poór, Péter/0000-0002-4539-6358; Gupta, Ravi/0000-0001-5242-9528; Khan, M. Iqbal R./0000-0002-7697-5723} } @article{MTMT:34653769, title = {The impact of growing season on the ethylene biosynthesis and signaling pathways of a heat tolerant tomato during off-vine postharvest ripening}, url = {https://m2.mtmt.hu/api/publication/34653769}, author = {Nguyen, Thao Minh Viet and Tran, Dinh Thi Thi and Van de Poel, Bram and Hertog, Maarten L. A. T. M. and Nicolai, Bart}, doi = {10.1016/j.postharvbio.2023.112637}, journal-iso = {POSTHARVEST BIOL TEC}, journal = {POSTHARVEST BIOLOGY AND TECHNOLOGY}, volume = {207}, unique-id = {34653769}, issn = {0925-5214}, keywords = {1-MCP; exogenous ethylene; ethylene signaling; ethylene biosynthesis; Postharvest ripening; Heat tolerant tomato}, year = {2024}, eissn = {1873-2356} } @article{MTMT:34401887, title = {Regulation of hormone pathways in wheat infested by Blumeria graminis f. sp. tritici}, url = {https://m2.mtmt.hu/api/publication/34401887}, author = {Bai, S. and Long, J. and Cui, Y. and Wang, Z. and Liu, C. and Liu, F. and Wang, Z. and Li, Q.}, doi = {10.1186/s12870-023-04569-1}, journal-iso = {BMC PLANT BIOL}, journal = {BMC PLANT BIOLOGY}, volume = {23}, unique-id = {34401887}, issn = {1471-2229}, year = {2023}, eissn = {1471-2229} } @article{MTMT:33961163, title = {Encapsulated plant growth regulators and associative microorganisms: Nature-based solutions to mitigate the effects of climate change on plants}, url = {https://m2.mtmt.hu/api/publication/33961163}, author = {Campos, Estefania V. R. and Pereira, Anderson do E. S. and Aleksieienko, Ivan and do Carmo, Giovanna C. and Gohari, Gholamreza and Santaella, Catherine and Fraceto, Leonardo F. and Oliveira, Halley C.}, doi = {10.1016/j.plantsci.2023.111688}, journal-iso = {PLANT SCI}, journal = {PLANT SCIENCE}, volume = {331}, unique-id = {33961163}, issn = {0168-9452}, abstract = {Over the past decades, the atmospheric CO2 concentration and global average temperature have been increasing, and this trend is projected to soon become more severe. This scenario of climate change intensifies abiotic stress factors (such as drought, flooding, salinity, and ultraviolet radiation) that threaten forest and associated eco-systems as well as crop production. These factors can negatively affect plant growth and development with a consequent reduction in plant biomass accumulation and yield, in addition to increasing plant susceptibility to biotic stresses. Recently, biostimulants have become a hotspot as an effective and sustainable alternative to alleviate the negative effects of stresses on plants. However, the majority of biostimulants have poor stability under environmental conditions, which leads to premature degradation, shortening their biological activity. To solve these bottlenecks, micro-and nano-based formulations containing biostimulant molecules and/or micro-organisms are gaining attention, as they demonstrate several advantages over their conventional formulations. In this review, we focus on the encapsulation of plant growth regulators and plant associative microorganisms as a strategy to boost their application for plant protection against abiotic stresses. We also address the potential limitations and challenges faced for the implementation of this technology, as well as possibilities regarding future research.}, keywords = {microencapsulation; Plant Growth Regulators; nanobiotechnology; seed priming; Biostimulants; Plant growth -promoting rhizobacteria}, year = {2023}, eissn = {1873-2259}, orcid-numbers = {Gohari, Gholamreza/0000-0002-1625-5978} } @article{MTMT:34349103, title = {Enhancing the Adaptability of Tea Plants (Camellia sinensis L.) to High-Temperature Stress with Small Peptides and Biosurfactants}, url = {https://m2.mtmt.hu/api/publication/34349103}, author = {Chen, Hao and Song, Yujie and Li, He and Zaman, Shah and Fan, Kai and Ding, Zhaotang and Wang, Yu}, doi = {10.3390/plants12152817}, journal-iso = {PLANTS-BASEL}, journal = {PLANTS-BASEL}, volume = {12}, unique-id = {34349103}, abstract = {Tea plants are highly susceptible to the adverse effects of a high-temperature climate, which can cause reduced yield and quality and even lead to plant death in severe cases. Therefore, reducing the damage caused by high-temperature stress and maintaining the photosynthetic capacity of tea plants is a critical technical challenge. In this study, we investigated the impact of small oligopeptides (small peptides) and surfactants on the high-temperature-stress tolerance of tea plants. Our findings demonstrated that the use of small peptides and surfactants enhances the antioxidant capacity of tea plants and protects their photosynthetic system. They also induce an increase in gibberellin (GA) content and a decrease in jasmonic acid (JA), strigolactone (SL), auxin (IAA), and cytokinin (CTK) content. At the same time, small peptides regulate the metabolic pathways of diterpenoid biosynthesis. Additionally, small peptides and surfactants induce an increase in L-Carnosine and N-Glycyl-L-Leucine content and a decrease in (5-L-Glutamyl)-L-Amino Acid content, and they also regulate the metabolic pathways of Beta-Alanine metabolism, Thiamine metabolism, and Glutathione metabolism. In summary, small peptides and surfactants enhance the ability of tea plants to resist high-temperature stress.}, keywords = {high temperature; small peptides; Camellia sinensis; biosurfactants}, year = {2023}, eissn = {2223-7747} } @article{MTMT:34341195, title = {Inspired by Nature: Isostere Concepts in Plant Hormone Chemistry}, url = {https://m2.mtmt.hu/api/publication/34341195}, author = {Frackenpohl, Jens and Abel, Steven A. G. and Alnafta, Neanne and Barber, David M. and Bojack, Guido and Brant, Nicola Z. and Helmke, Hendrik and Mattison, Rebecca L.}, doi = {10.1021/acs.jafc.3c01809}, journal-iso = {J AGR FOOD CHEM}, journal = {JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY}, unique-id = {34341195}, issn = {0021-8561}, abstract = {Chemical conceptssuch as isosteres and scaffold hopping have provento be powerful tools in agrochemical innovation processes. They offeropportunities to modify known molecular lead structures with the aimto improve a range of parameters, including biological efficacy andspectrum, physicochemical properties, stability, and toxicity. Whilerecent biochemical insights into plant-specific receptors and signalingpathways trigger the discovery of the first lead structures, the disclosureof such a new chemical structure sparks a broad range of synthesisactivities giving rise to diverse chemical innovation and often aconsiderable boost in biological activity. Herein, recent examplesof isostere concepts in plant-hormone chemistry will be discussed,outlining how synthetic creativity can broaden the scope of naturalproduct chemistry and giving rise to new opportunities in researchfields such as abiotic stress tolerance and growth promotion.}, keywords = {ABIOTIC STRESS; Crop protection; Plant hormones; bioisosteres; Agrochemistry}, year = {2023}, eissn = {1520-5118}, orcid-numbers = {Alnafta, Neanne/0000-0001-9320-5643} } @article{MTMT:34341191, title = {Synergistic application of melatonin and silicon alleviates chromium stress in Brassica napus through regulation of antioxidative defense system and ethylene metabolism}, url = {https://m2.mtmt.hu/api/publication/34341191}, author = {Gatasheh, Mansour K. and Shah, Anis Ali and Ali, Sajid and Ramzan, Musarrat and Javad, Sumera and Waseem, Laiba and Noor, Hafeez and Ahmed, Shakil and Wahid, Abdul}, doi = {10.1016/j.scienta.2023.112280}, journal-iso = {SCI HORTIC-AMSTERDAM}, journal = {SCIENTIA HORTICULTURAE}, volume = {321}, unique-id = {34341191}, issn = {0304-4238}, abstract = {Melatonin (MT) reacts with oxygenated compounds to form 2-hydroxymelatonin (2-HMT). The potential role of 2-HMT and silicon (Si) in moderation of chromium (Cr) stress in Brassica napus was evaluated in this study. B. napus seedlings have reduced growth and phytochemical attributes when grown in Cr-contaminated pots. Application of 2-HMT and Si, alone or as combined treatment, minimized Cr-stress in B. napus seedlings. Supplementation of 2-HMT and Si improved stomatal conductance (Gs), transpiration rate (Tr) and intercellular CO2 concentration (Ci) in B. napus seedlings subjected in Cr-toxic soil. Combined application of 2-HMT and Si prominently enhanced antioxidantive enzymes activity i.e., SOD (superoxide-dismutase), APX (ascorbateperoxidase) and CAT (catalase) enzyme in B. napus seedlings, compared to seedlings treated with MT-only. Moreover, 2-HMT and Si also reduced MDA (malondialdehyde) content, H2O2 (hydrogen peroxide) content and EL (electrolyte leakage) in B. napus seedlings of Cr-amended soil. Co-supplementation of 2-HMT and Si significantly enhanced ethylene level in B. napus seedlings grown in Cr-contaminated soil, as compared to rest of treated seedlings. Increased ethylene level activates antioxidantive defence system. Therefore, it is suggested that combined treatment of 2-HMT and Si can be useful to eliminate abiotic stresses in other crops.}, keywords = {GROWTH; melatonin; Brassica napus; Chromium stress}, year = {2023}, eissn = {1879-1018}, orcid-numbers = {Gatasheh, Mansour K./0000-0002-0101-1014; Javad, Sumera/0000-0002-4703-9610} } @article{MTMT:33961164, title = {Elevated Atmospheric Ethylene and High Temperature Independently Inhibit Fruit Set But Not Vegetative Growth in Tomato}, url = {https://m2.mtmt.hu/api/publication/33961164}, author = {Hudelson, Timothy J. and Westmorel, F. Mitchell and Bugbee, Bruce}, doi = {10.21273/HORTSCI16901-22}, journal-iso = {HORTSCIENCE}, journal = {HORTSCIENCE}, volume = {58}, unique-id = {33961164}, issn = {0018-5345}, abstract = {Ethylene is an essential plant hormone at low concentrations. Concentrations in the field rarely exceed 5 nmol center dot mol-1 (0.005 ppm), but it can accumulate as a gas in closed, indoor environments. These elevated levels can reduce growth and yield. Temperature alters ethylene synthesis and has the potential to influence ethylene sensitivity of crop plants in sealed greenhouses and indoor environments. We studied ethylene sensitivity of tomatoes (Solarium lycopersicum L. cv. MicroTina) using a unique, 12-chamber system. Ethylene levels of 0, 20, and 40 nmol center dot mol-1 (parts per billion) were maintained throughout the life cycle, at an air temperature of 22 or 28 degrees C. Yield of red fruit was three times higher at 22 than at 28 degrees C. There was a steady decrease in yield with increasing ethylene concentration, but vegetative growth was reduced less than 10% in any treatment. The highest ethylene concentration reduced yield to 11% of the control at 22 degrees C and to 4% of the control at 28 degrees C; the intermediate ethylene level reduced yield to 51% of the control at 22 degrees C and 37% at 28 degrees C. Regardless of temperature, filtering of ethylene in indoor environments to below 20 nmol center dot mol-1 is necessary to achieve normal fruit set and yield in tomato.}, keywords = {TEMPERATURE; ETHYLENE; vegetative growth; International Space Station; fruit yield; controlled environments; flower number}, year = {2023}, eissn = {2327-9834}, pages = {247-253} } @article{MTMT:33961165, title = {Influence of Thermotolerant Rhizobacteria Bacillus spp. on Biochemical Attributes and Antioxidant Status of Mustard Under High Temperature Stress}, url = {https://m2.mtmt.hu/api/publication/33961165}, author = {Kiruthika, A. and Vikram, K. V. and Nivetha, Nagarajan and Asha, A. D. and Chinnusamy, Viswanathan and Kumar, Arun and Paul, Sangeeta}, doi = {10.1007/s00284-023-03273-5}, journal-iso = {CURR MICROBIOL}, journal = {CURRENT MICROBIOLOGY}, volume = {80}, unique-id = {33961165}, issn = {0343-8651}, abstract = {Due to global warming, increasing incidences of higher-than-normal temperatures have been observed, which adversely affect seed germination, crop growth, and productivity. Several reports are available on the effect of inoculation with rhizobacteria on plant growth and biochemical attributes; however, information on their influence on seed germination and plant stress levels is lacking. In the present study, under heat stress, we studied the effect of three thermotolerant rhizobacterial strains on mustard seed germination, seedling vigor, and plant growth. Effect of inoculation with the rhizobacterial strains on the plant stress levels, biochemical attributes and antioxidant activity was also determined. Under heat stress, inoculation with the rhizobacterial strains improved seed germination and seedling fresh weight and plumule length; while only Bacillus licheniformis SSA 61 inoculated plants showed better radicle length. There was a concomitant decrease in the plant ethylene levels in the inoculated treatments. Inoculated plants showed higher shoot fresh weight, however, Bacillus sp. MRD-17 inoculated plants only improved root growth. There was significant increase in most of the plant biochemical parameters and activities of antioxidant enzymes superoxide dismutase, catalase, and ascorbate peroxidase. Significant reduction in proline and total sugar content was noted in the inoculated treatments; while increase in the amino acid and phenolics content was observed. A further increase in the antioxidant enzyme activity was recorded in most of the inoculated treatments compared with no stress. Thus, our study indicated that thermotolerant rhizobacterial strains reduced plant stress levels; enhanced seed germination, seedling vigor, plant biomass, and thermotolerance of mustard.}, year = {2023}, eissn = {1432-0991}, orcid-numbers = {Chinnusamy, Viswanathan/0000-0003-2174-9064} } @article{MTMT:33779110, title = {Screening of sunflower (Helianthus annuus L.) cultivars/hybrids for heat stress tolerance using growth and physiobiochemical indicators}, url = {https://m2.mtmt.hu/api/publication/33779110}, author = {Mobeen, F and Parveen, A. and Al-Ghamdi, A.A. and Al-Hemaid, F.M. and Abdelgawwad, M.R.}, doi = {10.55730/1300-011X.3063}, journal-iso = {TURK J AGRIC FOR}, journal = {TURKISH JOURNAL OF AGRICULTURE AND FORESTRY}, volume = {47}, unique-id = {33779110}, issn = {1300-011X}, year = {2023}, eissn = {1303-6173}, pages = {43-56} } @article{MTMT:34152032, title = {Acclimation response and management strategies to combat heat stress in wheat for sustainable agriculture: A state-of-the-art review}, url = {https://m2.mtmt.hu/api/publication/34152032}, author = {Mohan, N. and Jhandai, S. and Bhadu, S. and Sharma, L. and Kaur, T. and Saharan, V. and Pal, A.}, doi = {10.1016/j.plantsci.2023.111834}, journal-iso = {PLANT SCI}, journal = {PLANT SCIENCE}, volume = {336}, unique-id = {34152032}, issn = {0168-9452}, year = {2023}, eissn = {1873-2259} } @article{MTMT:34653768, title = {Brassinosteroid modulates ethylene synthesis and antioxidant metabolism to protect rice (Oryza sativa) against heat stress-induced inhibition of source-sink capacity and photosynthetic and growth attributes}, url = {https://m2.mtmt.hu/api/publication/34653768}, author = {Nazir, Faroza and Jahan, Badar and Kumari, Sarika and Iqbal, Noushina and Albaqami, Mohammed and Sofo, Adriano and Khan, M. Iqbal R.}, doi = {10.1016/j.jplph.2023.154096}, journal-iso = {J PLANT PHYSIOL}, journal = {JOURNAL OF PLANT PHYSIOLOGY}, volume = {289}, unique-id = {34653768}, issn = {0176-1617}, year = {2023}, eissn = {1618-1328}, orcid-numbers = {Iqbal, Noushina/0000-0002-6691-496X} } @article{MTMT:34349105, title = {Effects of exogenous glycine betaine and cycloleucine on photosynthetic capacity, amino acid composition, and hormone metabolism in Solanum melongena L.}, url = {https://m2.mtmt.hu/api/publication/34349105}, author = {Niu, Tianhang and Zhang, Jing and Li, Jing and Gao, Xiaoping and Ma, Hongyan and Gao, Yanqiang and Chang, Youlin and Xie, Jianming}, doi = {10.1038/s41598-023-34509-w}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {13}, unique-id = {34349105}, issn = {2045-2322}, abstract = {Although exogenous glycine betaine (GB) and cycloleucine (Cyc) have been reported to affect animal cell metabolism, their effects on plant growth and development have not been studied extensively. Different concentrations of exogenous glycine betaine (20, 40, and 60 mmol L-1) and cycloleucine (10, 20, and 40 mmol L-1), with 0 mmol L-1 as control, were used to investigate the effects of foliar spraying of betaine and cycloleucine on growth, photosynthesis, chlorophyll fluorescence, Calvin cycle pathway, abaxial leaf burr morphology, endogenous hormones, and amino acid content in eggplant. We found that 40 mmol L-1 glycine betaine had the best effect on plant growth and development; it increased the fresh and dry weight of plants, increased the density of abaxial leaf hairs, increased the net photosynthetic rate and Calvin cycle key enzyme activity of leaves, had an elevating effect on chlorophyll fluorescence parameters, increased endogenous indoleacetic acid (IAA) content and decreased abscisic acid (ABA) content, and increased glutamate, serine, aspartate, and phenylalanine contents. However, cycloleucine significantly inhibited plant growth; plant apical dominance disappeared, plant height and dry and fresh weights decreased significantly, the development of abaxial leaf hairs was hindered, the net photosynthetic rate and Calvin cycle key enzyme activities were inhibited, the endogenous hormones IAA and ABA content decreased, and the conversion and utilization of glutamate, arginine, threonine, and glycine were affected. Combined with the experimental results and plant growth phenotypes, 20 mmol L-1 cycloleucine significantly inhibited plant growth. In conclusion, 40 mmol L-1 glycine betaine and 20 mmol L-1 cycloleucine had different regulatory effects on plant growth and development.}, year = {2023}, eissn = {2045-2322} } @article{MTMT:34349102, title = {From Nature to Lab: A Review of Secondary Metabolite Biosynthetic Pathways, Environmental Influences, and In Vitro Approaches}, url = {https://m2.mtmt.hu/api/publication/34349102}, author = {Reshi, Zubair Altaf and Ahmad, Waquar and Lukatkin, Alexander S. and Bin Javed, Saad}, doi = {10.3390/metabo13080895}, journal-iso = {METABOLITES}, journal = {METABOLITES}, volume = {13}, unique-id = {34349102}, issn = {2218-1989}, abstract = {Secondary metabolites are gaining an increasing importance in various industries, such as pharmaceuticals, dyes, and food, as is the need for reliable and efficient methods of procuring these compounds. To develop sustainable and cost-effective approaches, a comprehensive understanding of the biosynthetic pathways and the factors influencing secondary metabolite production is essential. These compounds are a unique type of natural product which recognizes the oxidative damage caused by stresses, thereby activating the defence mechanism in plants. Various methods have been developed to enhance the production of secondary metabolites in plants. The elicitor-induced in vitro culture technique is considered an efficient tool for studying and improving the production of secondary metabolites in plants. In the present review, we have documented various biosynthetic pathways and the role of secondary metabolites under diverse environmental stresses. Furthermore, a practical strategy for obtaining consistent and abundant secondary metabolite production via various elicitation agents used in culturing techniques is also mentioned. By elucidating the intricate interplay of regulatory factors, this review paves the way for future advancements in sustainable and efficient production methods for high-value secondary metabolites.}, keywords = {environmental stress; plant tissue culture; Sustainable production; Industrial use; defence action}, year = {2023}, eissn = {2218-1989} } @article{MTMT:33961162, title = {WAVE-DAMPENED2-LIKE4 modulates the hyper-elongation of light-grown hypocotyl cells}, url = {https://m2.mtmt.hu/api/publication/33961162}, author = {Schaefer, Kristina and Baza, Ariadna Cairo and Huang, Tina and Cioffi, Timothy and Elliott, Andrew and Shaw, Sidney L.}, doi = {10.1093/plphys/kiad248}, journal-iso = {PLANT PHYSIOL}, journal = {PLANT PHYSIOLOGY}, unique-id = {33961162}, issn = {0032-0889}, abstract = {A microtubule associated protein limits hypocotyl cell growth in the light and at elevated temperatures and regulates hormone sensitivity without major changes to microtubule array patterning.Light, temperature, water, and nutrient availability influence how plants grow to maximize access to resources. Axial growth, the linear extension of tissues by coordinated axial cell expansion, plays a central role in these adaptive morphological responses. Using Arabidopsis (Arabidopsis thaliana) hypocotyl cells to explore axial growth control mechanisms, we investigated WAVE-DAMPENED2-LIKE4 (WDL4), an auxin-induced, microtubule-associated protein and member of the larger WDL gene family shown to modulate hypocotyl growth under changing environmental conditions. Loss-of-function wdl4 seedlings exhibited a hyper-elongation phenotype under light conditions, continuing to elongate when wild-type Col-0 hypocotyls arrested and reaching 150% to 200% of wild-type length before shoot emergence. wdl4 seedling hypocotyls showed dramatic hyper-elongation (500%) in response to temperature elevation, indicating an important role in morphological adaptation to environmental cues. WDL4 was associated with microtubules under both light and dark growth conditions, and no evidence was found for altered microtubule array patterning in loss-of-function wdl4 mutants under various conditions. Examination of hormone responses showed altered sensitivity to ethylene and evidence for changes in the spatial distribution of an auxin-dependent transcriptional reporter. Our data provide evidence that WDL4 regulates hypocotyl cell elongation without substantial changes to microtubule array patterning, suggesting an unconventional role in axial growth control.}, year = {2023}, eissn = {1532-2548}, orcid-numbers = {Huang, Tina/0000-0002-7352-1259; Cioffi, Timothy/0000-0002-8579-9389} } @article{MTMT:34349104, title = {Melatonin influences methyl jasmonate-induced protection of photosynthetic activity in wheat plants against heat stress by regulating ethylene-synthesis genes and antioxidant metabolism}, url = {https://m2.mtmt.hu/api/publication/34349104}, author = {Sehar, Zebus and Fatma, Mehar and Khan, Sheen and Mir, Iqbal R. and Abdi, Gholamreza and Khan, Nafees A.}, doi = {10.1038/s41598-023-34682-y}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {13}, unique-id = {34349104}, issn = {2045-2322}, abstract = {Melatonin (MT) and methyl jasmonate (MeJA) play important roles in the adaptation of plants to different stress factors by modulating stress tolerance mechanisms. The present study reports the involvement of MT (100 mu M) in MeJA (10 mu M)-induced photosynthetic performance and heat stress acclimation through regulation of the antioxidant metabolism and ethylene production in wheat (Triticum aestivum L.) plants. Plants exposed to 40 degrees C for 6 h per day for 15 days and allowed to retrieve at 28 degrees C showed enhanced oxidative stress and antioxidant metabolism, increased 1-aminocyclopropane-1-carboxylic acid (ACC) synthase (ACS) activity and ethylene production, and decreased photosynthetic performance. In contrast, the exogenously applied MT and MeJA reduced oxidative stress through improved S-assimilation (+ 73.6% S content), antioxidant defense system (+ 70.9% SOD, + 115.8% APX and + 104.2% GR, and + 49.5% GSH), optimized ethylene level to 58.4% resulting in improved photosynthesis by 75%. The use of p-chlorophenyl alanine, a MT biosynthesis inhibitor along with MeJA in the presence of heat stress reduced the photosynthetic performance, ATP-S activity and GSH content, substantiated the requirement of MT in the MeJA-induced photosynthetic response of plants under heat stress. These findings suggest that MeJA evoked the plant's ability to withstand heat stress by regulating the S-assimilation, antioxidant defense system, and ethylene production, and improving photosynthetic performance was dependent on MT.}, year = {2023}, eissn = {2045-2322}, orcid-numbers = {Abdi, Gholamreza/0000-0002-1983-4369} } @article{MTMT:33961166, title = {Nitric Oxide and Proline Modulate Redox Homeostasis and Photosynthetic Metabolism in Wheat Plants under High Temperature Stress Acclimation}, url = {https://m2.mtmt.hu/api/publication/33961166}, author = {Sehar, Zebus and Mir, Iqbal R. and Khan, Sheen and Masood, Asim and Khan, Nafees A.}, doi = {10.3390/plants12061256}, journal-iso = {PLANTS-BASEL}, journal = {PLANTS-BASEL}, volume = {12}, unique-id = {33961166}, abstract = {The effects of exogenously-sourced NO (nitric oxide, as 100 mu M SNP) and proline (50 mM) in the protection of the photosynthetic performance of wheat (Triticum aestivum L.) plants against heat stress were investigated. The study focused on the mechanisms of proline accumulation, activity, gene expression of antioxidant enzymes, and NO generation. Plants were exposed to a temperature of 40 degrees C for 6 h per day over 15 days, then allowed to recover at 28 degrees C. Heat-stressed plants showed increased oxidative stress, with higher levels of H2O2 and TBARS (thiobarbituric acid reactive substances) and increased proline accumulation, ACS activity, ethylene evolution, and NO generation, which in turn leads to increased accumulation of antioxidant enzymes and reduced photosynthetic attributes. In the tested wheat cultivar, the exogenous application of SNP and proline under heat stress improved the photosynthesis and reduced oxidative stress by enhancing the enzymatic antioxidant defense system. Potentially, the promoter AOX (alternative oxidase) played a role in maintaining redox homeostasis by lowering H2O2 and TBARS levels. The genes for GR antioxidant and photosystem II core protein encoding psbA and psbB were highly up-regulated in nitric oxide and proline treated heat-stressed plants, indicating that ethylene positively impacted photosynthesis under high temperature stress. Moreover, nitric oxide supplementation under high temperature stress optimized ethylene levels to regulate the assimilation and metabolism of proline and the antioxidant system, lowering the adverse effects. The study showed that nitric oxide and proline increased high temperature stress tolerance in wheat by increasing the osmolytes accumulation and the antioxidant system, resulting in enhanced photosynthesis.}, keywords = {Heat stress; nitric oxide; gas exchange; antioxidant enzymes; OSMOLYTES}, year = {2023}, eissn = {2223-7747} } @article{MTMT:34349101, title = {Fruit ripening under heat stress: The intriguing role of ethylene-mediated signaling}, url = {https://m2.mtmt.hu/api/publication/34349101}, author = {Sharma, Megha and Negi, Shivanti and Kumar, Pankaj and Srivastava, Dinesh Kumar and Choudhary, Mani Kant and Irfan, Mohammad}, doi = {10.1016/j.plantsci.2023.111820}, journal-iso = {PLANT SCI}, journal = {PLANT SCIENCE}, volume = {335}, unique-id = {34349101}, issn = {0168-9452}, abstract = {Crop production is significantly influenced by climate, and even minor climate changes can have a substantial impact on crop yields. Rising temperature due to climate change can lead to heat stress (HS) in plants, which not only hinders plant growth and development but also result in significant losses in crop yields. To cope with the different stresses including HS, plants have evolved a variety of adaptive mechanisms. In response to these stresses, phytohormones play a crucial role by generating endogenous signals that regulate the plant's defensive response. Among these, Ethylene (ET), a key phytohormone, stands out as a major regulator of stress responses in plants and regulates many plant traits, which are critical for crop productivity and nutritional quality. ET is also known as a ripening hormone for decades in climacteric fruit and many studies are available deciphering the function of different ET biosynthesis and signaling components in the ripening process. Recent studies suggest that HS significantly affects fruit quality traits and perturbs fruit ripening by altering the regulation of many ethylene biosynthesis and signaling genes resulting in substantial loss of fruit yield, quality, and postharvest stability. Despite the significant progress in this field in recent years the interplay between ET, ripening, and HS is elusive. In this review, we summarized the recent advances and current understanding of ET in regulating the ripening process under HS and explored their crosstalk at physiological and molecular levels to shed light on intricate relationships}, keywords = {TRANSCRIPTION FACTOR; Heat stress; ETHYLENE; ACC oxidase; Heat shock proteins; RIPENING; fruit quality; ethylene response factor; ACC synthase}, year = {2023}, eissn = {1873-2259}, orcid-numbers = {Irfan, Mohammad/0000-0002-7877-5530} } @article{MTMT:33961167, title = {Exogenous melatonin enhances tomato heat resistance by regulating photosynthetic electron flux and maintaining ROS homeostasis}, url = {https://m2.mtmt.hu/api/publication/33961167}, author = {Sun, Cong and Meng, Sida and Wang, Baofeng and Zhao, Siting and Liu, Yulong and Qi, Mingfang and Wang, Zhenqi and Yin, Zepeng and Li, Tianlai}, doi = {10.1016/j.plaphy.2023.01.043}, journal-iso = {PLANT PHYSIOL BIOCH (PPB)}, journal = {PLANT PHYSIOLOGY AND BIOCHEMISTRY}, volume = {196}, unique-id = {33961167}, issn = {0981-9428}, abstract = {Heat stress reduces plant growth and reproduction and increases agricultural risks. As a natural compound, melatonin modulates broad aspects of the responses of plants to various biotic and abiotic stresses. However, regulation of the photosynthetic electron transfer, reactive oxygen species (ROS) homeostasis and the redox state of redox-sensitive proteins in the tolerance to heat stress induced by melatonin remain largely unknown. The oxygen evolution complex activity on the electron-donating side of photosystem II (PSII) is inhibited, and the electron transfer process from QA to QB on the electron-accepting side of PSII is inhibited. In this case, heat stress decreased the chlorophyll content, carbon assimilation rate, PSII activity, and the proportion of light absorbed by tomato seedlings during electron transfer. The ROS burst led to the breakdown of the PSII core protein. However, exogenous melatonin increased the net photosynthetic rate by 11.3% compared with heat stress, substantially reducing the restriction of photosynthetic systems induced by heat stress. Additionally, melatonin reduces the oxidative damage to PSII by balancing electron transfer on the donor, reactive center, and acceptor sides. Melatonin was used under heat stress to increase the activity of the antioxidant enzyme and preserve ROS equilibrium. In addition, redox proteomics also showed that melatonin controls the redox levels of proteins involved in photosynthesis, and stress and defense processes, which enhances the expression of oxidative genes. In conclusion, melatonin via controlling the photosynthetic electron transport and antioxidant, melatonin increased tomato heat stress tolerance and aided plant growth.}, keywords = {ANTIOXIDANT; melatonin; ROS; Solanum lycopersicum; redox proteomics; Photosynthetic electron transfer}, year = {2023}, eissn = {1873-2690}, pages = {197-209} } @article{MTMT:33781047, title = {Transcriptome Analysis Reveals the Heat Stress Response Genes by Fire Stimulation in Michelia macclurei Dandy}, url = {https://m2.mtmt.hu/api/publication/33781047}, author = {Wei, S. and Song, Z. and Luo, S. and Zhong, Y. and Zhou, Y. and Lu, R.}, doi = {10.3390/f14030610}, journal-iso = {FORESTS}, journal = {FORESTS}, volume = {14}, unique-id = {33781047}, issn = {1999-4907}, abstract = {Heat stress due to external heat sources such as fire is an ecological problem for plants. When forest plants suffer from fire, high temperatures cause an array of morphological, physiological, and biochemical changes, which affect growth and development. Michelia macclurei Dandy is an evergreen broad-leaved tree species with the characteristics of fast growth, strong adaptability, and good fire-resistance. Some studies have improved the understanding of how fire behavior affects physiology, function and mortality, but the extreme heat response genes and mechanisms need improved understanding. In this study, we conducted a fire experiment (slight and severe) and RNA-Seq in M. macclure. The de novo assembly obtained 104,052 unigenes, and 48.46% were annotated in at least one public database. Specifically, 4458 and 4810 differentially expressed genes (DEGs) were identified in slight and severe fire treatment groups, respectively. In two treatment groups, 612 unigenes were differentially expressed, which were enriched in ‘oxidoreductase activity’ in the molecular function (MF) category of Gene Ontology (GO) enrichment analysis, suggesting the core role of oxidoreductase activity in response to extremely high temperatures in M. macclurei. In KEGG enrichment analysis of DEGs, the ‘plant hormone signal transduction’ is overrepresented, suggesting that this process plays an important role during heat response in M. macclurei. In the pathways of cytokinine and salicylic acid, some vital DEGs were enriched, which were related to cell division, shoot initiation, and disease resistance, and the potential interactions during heat stress were discussed. Moreover, the DEGs linked to heat stress response were identified, including heat shock factors, stress enhanced protein, signal transduction, photosystem, and major transcription factors. The qRT-PCR examination of various tissues, expression dynamics, and treatments revealed that the genes coding for the heat shock protein HSF30, stress enhanced protein, and photosystem I reaction center subunit II exhibited particularities in leaf tissue. Genes coding for heat shock proteins displayed a distinct expression pattern between fire treatment and conventional heat stress, which could signify the distinctive function of HSPs and the mechanism of heat responses. Altogether, these may interact to respond to fire stress through alterations in cellular processes, signaling transduction, and the synthesis and degradation of response proteins in M. macclurei. The results of this study provide a crucial transcriptional profile influenced by heat stress in M. macclurei, and could be of great use to explore the fire prevention mechanisms of fire-resistant tree species. © 2023 by the authors.}, keywords = {TISSUE; TISSUE; transcription factors; TRANSCRIPTION; signal transduction; RNA; Heat stress; Plants (botany); polymerase chain reaction; physiology; physiology; cell proliferation; GENE ONTOLOGY; salicylic acid; salicylic acid; Heat resistance; Thermal stress; Thermal stress; Bacteriophages; Fires; Fires; reforestation; reforestation; RNA-Seq; RNA-Seq; Differentially expressed gene; Tree species; Highest temperature; Heat response genes; fire resistant; Fire experiments; fire experiment; fire-resistant tree; fire-resistant tree; Michelia macclurei; Michelia macclurei; Heat response gene}, year = {2023}, eissn = {1999-4907} } @article{MTMT:33151193, title = {Ethylene Signaling under Stressful Environments: Analyzing Collaborative Knowledge}, url = {https://m2.mtmt.hu/api/publication/33151193}, author = {Fatma, Mehar and Asgher, Mohd and Iqbal, Noushina and Rasheed, Faisal and Sehar, Zebus and Sofo, Adriano and Khan, Nafees A.}, doi = {10.3390/plants11172211}, journal-iso = {PLANTS-BASEL}, journal = {PLANTS-BASEL}, volume = {11}, unique-id = {33151193}, year = {2022}, eissn = {2223-7747} } @article{MTMT:33503037, title = {Exogenously-Sourced Ethylene Positively Modulates Photosynthesis, Carbohydrate Metabolism, and Antioxidant Defense to Enhance Heat Tolerance in Rice}, url = {https://m2.mtmt.hu/api/publication/33503037}, author = {Gautam, Harsha and Fatma, Mehar and Sehar, Zebus and Iqbal, Noushina and Albaqami, Mohammed and Khan, Nafees A.}, doi = {10.3390/ijms23031031}, journal-iso = {INT J MOL SCI}, journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES}, volume = {23}, unique-id = {33503037}, issn = {1661-6596}, abstract = {The effect of exogenously-applied ethylene sourced from ethephon (2-chloroethyl phosphonic acid)was studied on photosynthesis, carbohydrate metabolism, and high-temperature stress tolerance in Taipei-309 and Rasi cultivars of rice (Oryza sativa L.). Heat stress increased the content of H2O2 and thiobarbituric acid reactive substances (TBARS)more in Rasi than Taipei-309. Further, a significant decline in sucrose, starch, and carbohydrate metabolism enzyme activity and photosynthesis was also observed in response to heat stress. The application of ethephon reduced H2O2 and TBARS content by enhancing the enzymatic antioxidant defense system and improved carbohydrate metabolism, photosynthesis, and growth more conspicuously in Taipei-309 under heat stress. The ethephon application enhanced photosynthesis by up-regulating the psbA and psbB genes of photosystem II in heat-stressed plants. Interestingly, foliar application of ethephoneffectively down-regulated high-temperature-stress-induced elevated ethylene biosynthesis gene expression. Overall, ethephon application optimized ethylene levels under high-temperature stress to regulate the antioxidant enzymatic system and carbohydrate metabolism, reducing the adverse effects on photosynthesis. These findings suggest that ethylene regulates photosynthesis via carbohydrate metabolism and the antioxidant system, thereby influencing high-temperature stress tolerance in rice.}, keywords = {PHOTOSYNTHESIS; Carbohydrate; ANTIOXIDANT; ethephon; high-temperature stress}, year = {2022}, eissn = {1422-0067}, orcid-numbers = {Gautam, Harsha/0000-0002-4476-5676; Iqbal, Noushina/0000-0002-6691-496X} } @article{MTMT:33181803, title = {Hydrogen Sulfide, Ethylene, and Nitric Oxide Regulate Redox Homeostasis and Protect Photosynthetic Metabolism under High Temperature Stress in Rice Plants}, url = {https://m2.mtmt.hu/api/publication/33181803}, author = {Gautam, Harsha and Fatma, Mehar and Sehar, Zebus and Mir, Iqbal R. and Khan, Nafees A.}, doi = {10.3390/antiox11081478}, journal-iso = {ANTIOXIDANTS-BASEL}, journal = {ANTIOXIDANTS}, volume = {11}, unique-id = {33181803}, abstract = {Rising temperatures worldwide due to global climate change are a major scientific issue at present. The present study reports the effects of gaseous signaling molecules, ethylene (200 mu L L-1; 2-chloroethylphosphonic acid; ethephon, Eth), nitric oxide (NO; 100 mu M sodium nitroprusside; SNP), and hydrogen sulfide (H2S; 200 mu M sodium hydrosulfide, NaHS) in high temperature stress (HS) tolerance, and whether or not H2S contributes to ethylene or NO-induced thermo-tolerance and photosynthetic protection in rice (Oryza sativa L.) cultivars, i.e., Taipei-309, and Rasi. Plants exposed to an HS of 40 degrees C for six h per day for 15 days caused a reduction in rice biomass, associated with decreased photosynthesis and leaf water status. High temperature stress increased oxidative stress by increasing the content of hydrogen peroxide (H2O2) and thiobarbituric acid reactive substance (TBARS) in rice leaves. These signaling molecules increased biomass, leaf water status, osmolytes, antioxidants, and photosynthesis of plants under non-stress and high temperature stress. However, the effect was more conspicuous with ethylene than NO and H2S. The application of H2S scavenger hypotaurine (HT) reversed the effect of ethylene or NO on photosynthesis under HS. This supports the findings that the ameliorating effects of Eth or SNP involved H2S. Thus, the presence of H2S with ethylene or NO can enhance thermo-tolerance while also protecting plant photosynthesis.}, keywords = {PHOTOSYNTHESIS; RICE; nitric oxide; ETHYLENE; Hydrogen sulfide}, year = {2022}, eissn = {2076-3921} } @article{MTMT:33405097, title = {Contrasting genome patterns of two pseudomonas strains isolated from the date palm rhizosphere to assess survival in a hot arid environment}, url = {https://m2.mtmt.hu/api/publication/33405097}, author = {Malik, Shahana Seher and Sudalaimuthuasari, Naganeeswaran and Kundu, Biduth and AlMaskari, Raja S. and Mundra, Sunil}, doi = {10.1007/s11274-022-03392-4}, journal-iso = {WORLD J MICROB BIOT}, journal = {WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY}, volume = {38}, unique-id = {33405097}, issn = {0959-3993}, abstract = {The plant growth-promoting rhizobacteria (PGPRs) improve plant growth and fitness by multiple direct (nitrogen fixation and phosphate solubilization) and indirect (inducing systematic resistance against phytopathogens, soil nutrient stabilization, and maintenance) mechanisms. Nevertheless, the mechanisms by which PGPRs promote plant growth in hot and arid environments remain poorly recorded. In this study, a comparative genome analysis of two phosphate solubilizing bacteria, Pseudomonas atacamensis SM1 and Pseudomonas toyotomiensis SM2, isolated from the rhizosphere of date palm was performed. The abundance of genes conferring stress tolerance (chaperones, heat shock genes, and chemotaxis) and supporting plant growth (plant growth hormone, root colonization, nitrogen fixation, and phosphate solubilization) were compared among the two isolates. This study further evaluated their functions, metabolic pathways, and evolutionary relationship. Results show that both bacterial strains have gene clusters required for plant growth promotion (phosphate solubilization and root colonization), but it is more abundant in P. atacamensis SM1 than in P. toyotomiensis SM2. Genes involved in stress tolerance (mcp, rbs, wsp, and mot), heat shock, and chaperones (hslJ and hslR) were also more common in P. atacamensis SM1. These findings suggest that P. atacamensis SM1could have better adaptability to the hot and arid environment owing to a higher abundance of chaperone genes and heat shock proteins. It may promote plant growth owing to a higher load of root colonization and phosphate solubilization genes and warrants further in vitro study.}, keywords = {STRESS TOLERANCE; PSEUDOMONAS; Comparative genomics; DATE PALM; Plant growth-promoting rhizobacteria; Arid environment}, year = {2022}, eissn = {1573-0972}, orcid-numbers = {Malik, Shahana Seher/0000-0002-7728-8239} } @article{MTMT:33503034, title = {An explicit story of plant abiotic stress resilience: Overtone of selenium, plant hormones and other signaling molecules}, url = {https://m2.mtmt.hu/api/publication/33503034}, author = {Nazir, Faroza and Kumari, Sarika and Mahajan, Moksh and Khan, M. Iqbal R.}, doi = {10.1007/s11104-022-05826-2}, journal-iso = {PLANT SOIL}, journal = {PLANT AND SOIL}, volume = {486}, unique-id = {33503034}, issn = {0032-079X}, abstract = {Background Climate change has escalated global environmental risks, particularly the effects of abiotic stresses on agricultural productivity. Improving crop plants' acclimation to abiotic stress environments is critical to cope with increasing incidences of abiotic stresses, which could potentially be attained by modifying adaptive physiological and molecular processes. Scope The agricultural sector is coherently linked with nutrient input, and thus the judicious application of mineral elements as "stress combaters " could be expected to show ameliorative responses under such circumstances. Selenium (Se) has gained substantial recognition as a 'plant beneficial element' governing stress adaptive responses by modulating metabolic and signaling pathways associated with plant growth and developmental processes. Se-mediated abiotic stress-responsive and mechanistic behavior have achieved significant progression, however, still there are numerous unexplored facets needed to explore, which will add-on the current elucidative knowledge on the underlying phenomena. Although the individual roles of Se, plant hormones, and other signaling molecules have been comprehensively delineated, their intricate interplay with each other to govern plant responses to multiple abiotic stresses is still unnoticeable. Conclusions The current review sheds light on the implicational approaches and underlying mechanisms of Se-induced plant developmental responses and tolerance to abiotic stresses, and its crosstalk with plant hormones and other signaling molecules in regulating the tolerance process. In the near future, it will be intriguing to explore further the diverse roles of Se with plant hormone signaling in the conflict between plants and environmental exposures. To understand this, the characterization and identification of key genes would be effective in exploring the intrinsic signaling mechanism of Se-PGR interaction to provide new insights into the complex signaling pathways to regulate stress resilience.}, keywords = {ABIOTIC STRESS; Selenium; Signaling molecules; RESILIENCE; Plant hormones}, year = {2022}, eissn = {1573-5036}, pages = {135-163} } @article{MTMT:33950859, title = {Modifications of Phytohormone Metabolism Aimed at Stimulation of Plant Growth, Improving Their Productivity and Tolerance to Abiotic and Biotic Stress Factors}, url = {https://m2.mtmt.hu/api/publication/33950859}, author = {Nowicka, Beatrycze}, doi = {10.3390/plants11243430}, journal-iso = {PLANTS-BASEL}, journal = {PLANTS-BASEL}, volume = {11}, unique-id = {33950859}, abstract = {Due to the growing human population, the increase in crop yield is an important challenge for modern agriculture. As abiotic and biotic stresses cause severe losses in agriculture, it is also crucial to obtain varieties that are more tolerant to these factors. In the past, traditional breeding methods were used to obtain new varieties displaying demanded traits. Nowadays, genetic engineering is another available tool. An important direction of the research on genetically modified plants concerns the modification of phytohormone metabolism. This review summarizes the state-of-the-art research concerning the modulation of phytohormone content aimed at the stimulation of plant growth and the improvement of stress tolerance. It aims to provide a useful basis for developing new strategies for crop yield improvement by genetic engineering of phytohormone metabolism.}, keywords = {TRANSGENIC PLANTS; ABIOTIC STRESS; biotic stress; growth regulators; Phytohormones}, year = {2022}, eissn = {2223-7747}, orcid-numbers = {Nowicka, Beatrycze/0000-0002-2696-5439} } @article{MTMT:32878851, title = {Heat Stress Targeting Individual Organs Reveals the Central Role of Roots and Crowns in Rice Stress Responses}, url = {https://m2.mtmt.hu/api/publication/32878851}, author = {Prerostova, Sylva and Jarosova, Jana and Dobrev, Petre I. and Hluskova, Lucia and Motyka, Vaclav and Filepova, Roberta and Knirsch, Vojtech and Gaudinova, Alena and Kieber, Joseph and Vankova, Radomira}, doi = {10.3389/fpls.2021.799249}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {12}, unique-id = {32878851}, issn = {1664-462X}, abstract = {Inter-organ communication and the heat stress (HS; 45 degrees C, 6 h) responses of organs exposed and not directly exposed to HS were evaluated in rice (Oryza sativa) by comparing the impact of HS applied either to whole plants, or only to shoots or roots. Whole-plant HS reduced photosynthetic activity (F-v/F-m and QY(_Lss)), but this effect was alleviated by prior acclimation (37 degrees C, 2 h). Dynamics of HSFA2d, HSP90.2, HSP90.3, and SIG5 expression revealed high protection of crowns and roots. Additionally, HSP26.2 was strongly expressed in leaves. Whole-plant HS increased levels of jasmonic acid (JA) and cytokinin cis-zeatin in leaves, while up-regulating auxin indole-3-acetic acid and down-regulating trans-zeatin in leaves and crowns. Ascorbate peroxidase activity and expression of alternative oxidases (AOX) increased in leaves and crowns. HS targeted to leaves elevated levels of JA in roots, cis-zeatin in crowns, and ascorbate peroxidase activity in crowns and roots. HS targeted to roots increased levels of abscisic acid and auxin in leaves and crowns, cis-zeatin in leaves, and JA in crowns, while reducing trans-zeatin levels. The weaker protection of leaves reflects the growth strategy of rice. HS treatment of individual organs induced changes in phytohormone levels and antioxidant enzyme activity in non-exposed organs, in order to enhance plant stress tolerance.}, keywords = {Gene Expression; heat shock; ACCLIMATION; antioxidant enzymes; Phytohormones; ); Cytokinin oxidase; dehydrogenase (CKX); jasmonoyl-isoleucine; Oryza sativa (L}, year = {2022}, eissn = {1664-462X}, orcid-numbers = {Prerostova, Sylva/0000-0002-7383-3922; Kieber, Joseph/0000-0002-5766-812X} } @article{MTMT:32755030, title = {Multidimensional Role of Silicon to Activate Resilient Plant Growth and to Mitigate Abiotic Stress}, url = {https://m2.mtmt.hu/api/publication/32755030}, author = {Rakeeb, Ahmad Mir and Basharat, Ahmad Bhat and Henan, Yousuf and Sheikh, Tajamul Islam and Ali, Raza and Masood, Ahmad Rizvi and Sidra, Charagh and Mohammed, Albaqami and Parvaze, A. Sofi and Sajad, Majeed Zargar}, doi = {10.3389/fpls.2022.819658}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {13}, unique-id = {32755030}, issn = {1664-462X}, year = {2022}, eissn = {1664-462X} } @article{MTMT:32595615, title = {Molecular insights into sensing, regulation and improving of heat tolerance in plants}, url = {https://m2.mtmt.hu/api/publication/32595615}, author = {Saini, N. and Nikalje, G.C. and Zargar, S.M. and Suprasanna, P.}, doi = {10.1007/s00299-021-02793-3}, journal-iso = {PLANT CELL REP}, journal = {PLANT CELL REPORTS}, volume = {41}, unique-id = {32595615}, issn = {0721-7714}, abstract = {Climate-change-mediated increase in temperature extremes has become a threat to plant productivity. Heat stress-induced changes in growth pattern, sensitivity to pests, plant phonologies, flowering, shrinkage of maturity period, grain filling, and increased senescence result in significant yield losses. Heat stress triggers multitude of cellular, physiological and molecular responses in plants beginning from the early sensing followed by signal transduction, osmolyte synthesis, antioxidant defense, and heat stress-associated gene expression. Several genes and metabolites involved in heat perception and in the adaptation response have been isolated and characterized in plants. Heat stress responses are also regulated by the heat stress transcription factors (HSFs), miRNAs and transcriptional factors which together form another layer of regulatory circuit. With the availability of functionally validated candidate genes, transgenic approaches have been applied for developing heat-tolerant transgenic maize, tobacco and sweet potato. In this review, we present an account of molecular mechanisms of heat tolerance and discuss the current developments in genetic manipulation for heat tolerant crops for future sustainable agriculture. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.}, keywords = {Heat stress; Genetic engineering; Reactive oxygen species; Heat shock proteins; Phytohormones; Genome editing}, year = {2022}, eissn = {1432-203X}, pages = {799-813} } @article{MTMT:33181810, title = {Ethylene- and Proline-Dependent Regulation of Antioxidant Enzymes to Mitigate Heat Stress and Boost Photosynthetic Efficacy in Wheat Plants}, url = {https://m2.mtmt.hu/api/publication/33181810}, author = {Sehar, Zebus and Gautam, Harsha and Masood, Asim and Khan, Nafees A.}, doi = {10.1007/s00344-022-10737-8}, journal-iso = {J PLANT GROWTH REGUL}, journal = {JOURNAL OF PLANT GROWTH REGULATION}, unique-id = {33181810}, issn = {0721-7595}, abstract = {Ethylene regulates the photosynthetic efficiency of plants grown under challenging environments by the regulation of the antioxidant system and other biomolecules, such as osmolytes (proline). The role of ethylene in modulating proline biosynthesis and subsequent changes in antioxidant system to protect wheat (Triticum aestivum L. cv. WH-711) against heat stress was studied. The effects of exogenously sourced ethylene (as 200 mu L L-1 ethephon: 2-chloroethylphosphonic acid) and proline (50 mM) were studied in the protection of photosynthetic performance and heat stress tolerance by studying mechanisms of proline biosynthesis, activity and gene expression of antioxidants, and ethylene evolution. The cultivars WH-711, RAJ-3765, PBW-373, HD-2967, PBW-550, DBW-17, PBW-343, and UP-2338 were screened for their proline accumulation capacity and tolerance to heat stress. Plants of the cultivar WH-711 with higher proline accumulation and heat tolerance capacity were subjected to a temperature of 40 degrees C for 6 h per day over 15 days and then allowed to recover at 28 degrees C. These plants showed increased H2O2 and TBARS (thiobarbituric acid reactive substances), proline accumulation, and ethylene evolution, activity of antioxidant enzymes, and reduced photosynthetic characteristics. Ethephon plus proline supplementation under heat stress upregulated the antioxidant defense system, reduced oxidative stress, and upregulated psbA and psbB expression and photosynthesis. The study's outcome may be taken to improve photosynthetic performance and heat stress tolerance through ethylene-enhanced proline accumulation and antioxidant defense system.}, keywords = {antioxidants; PHOTOSYNTHESIS; Heat stress; ETHYLENE; PROLINE}, year = {2022}, eissn = {1435-8107} } @article{MTMT:32940786, title = {The Functional Interplay between Ethylene, Hydrogen Sulfide, and Sulfur in Plant Heat Stress Tolerance}, url = {https://m2.mtmt.hu/api/publication/32940786}, author = {Sehar, Zebus and Gautam, Harsha and Iqbal, Noushina and Alvi, Ameena Fatima and Jahan, Badar and Fatma, Mehar and Albaqami, Mohammed and Khan, Nafees A.}, doi = {10.3390/biom12050678}, journal-iso = {BIOMOLECULES}, journal = {BIOMOLECULES}, volume = {12}, unique-id = {32940786}, issn = {2218-273X}, abstract = {Plants encounter several abiotic stresses, among which heat stress is gaining paramount attention because of the changing climatic conditions. Severe heat stress conspicuously reduces crop productivity through changes in metabolic processes and in growth and development. Ethylene and hydrogen sulfide (H2S) are signaling molecules involved in defense against heat stress through modulation of biomolecule synthesis, the antioxidant system, and post-translational modifications. Other compounds containing the essential mineral nutrient sulfur (S) also play pivotal roles in these defense mechanisms. As biosynthesis of ethylene and H2S is connected to the S-assimilation pathway, it is logical to consider the existence of a functional interplay between ethylene, H2S, and S in relation to heat stress tolerance. The present review focuses on the crosstalk between ethylene, H2S, and S to highlight their joint involvement in heat stress tolerance.}, keywords = {TOLERANCE; antioxidants; Heat stress; Mineral nutrients; post-translational changes}, year = {2022}, eissn = {2218-273X}, orcid-numbers = {Gautam, Harsha/0000-0002-4476-5676; Iqbal, Noushina/0000-0002-6691-496X} } @article{MTMT:33084908, title = {High-resolution dissection of photosystem II electron transport reveals differential response to water deficit and heat stress in isolation and combination in pearl millet [Pennisetum glaucum (L.) R. Br.]}, url = {https://m2.mtmt.hu/api/publication/33084908}, author = {Shanker, A.K. and Amirineni, S. and Bhanu, D. and Yadav, S.K. and Jyothilakshmi, N. and Vanaja, M. and Singh, J. and Sarkar, B. and Maheswari, M. and Singh, V.K.}, doi = {10.3389/fpls.2022.892676}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {13}, unique-id = {33084908}, issn = {1664-462X}, abstract = {Heat and Water Deficit Stress (WDS) tend to impede and restrict the efficiency of photosynthesis, chlorophyll fluorescence, and maximum photochemical quantum yield in plants based on their characteristic ability to interfere with the electron transport system in photosystem II. Dissection of the electron transport pathway in Photosystem II (PSII) under water deficit and Heat Stress (HS) can be insightful in gaining knowledge on the various attributes of the photosynthetic performance of a plant. We attempt a high-resolution dissection of electron transport in PSII with studies on chlorophyll a fast fluorescence kinetics and non-photochemical quenching (NPQ) as a response to and recovery from these stresses in pearl millet [Pennisetum glaucum (L.) R. Br.] in isolation and combination. In this study, we bring out the mechanisms by which both heat and water stress, in isolation and in combination, affect the photosynthetic electron transport in Photosystem II. Our results indicate that oxygen evolution complex (OEC) damage is the primary effect of heat stress and is not seen with the same intensity in the water-stressed plants. Low exciton absorption flux in heat stress and combined stress was seen due to OEC damage, and this caused an electron transport traffic jam in the donor side of PS II. Both the specific energy flux model and the phenomenological flux model developed from the derived values in our study show that water deficit stress in combination with heat stress has a much stronger effect than the stresses in isolation on the overall electron transport pathway of the PS II in pearl millet plants. Copyright © 2022 Shanker, Amirineni, Bhanu, Yadav, Jyothilakshmi, Vanaja, Singh, Sarkar, Maheswari and Singh.}, keywords = {Heat stress; Photosystem II; Water deficit stress; oxygen evolving complex (OEC); phenomenological fluxes}, year = {2022}, eissn = {1664-462X} } @article{MTMT:33409222, title = {Hot and dry: how plants can thrive in future climates}, url = {https://m2.mtmt.hu/api/publication/33409222}, author = {Siddiqui, Manzer H. and Khan, M. Nasir and Singh, Vijay Pratap}, doi = {10.1007/s00299-022-02843-4}, journal-iso = {PLANT CELL REP}, journal = {PLANT CELL REPORTS}, volume = {41}, unique-id = {33409222}, issn = {0721-7714}, year = {2022}, eissn = {1432-203X}, pages = {497-499}, orcid-numbers = {Singh, Vijay Pratap/0000-0002-5772-5438} } @article{MTMT:33503036, title = {Landscape Genomics Provides Evidence of Ecotypic Adaptation and a Barrier to Gene Flow at Treeline for the Arctic Foundation Species Eriophorum vaginatum}, url = {https://m2.mtmt.hu/api/publication/33503036}, author = {Stunz, Elizabeth and Fetcher, Ned and Lavretsky, Philip and Mohl, Jonathon E. and Tang, Jianwu and Moody, Michael L.}, doi = {10.3389/fpls.2022.860439}, journal-iso = {FRONT PLANT SCI}, journal = {FRONTIERS IN PLANT SCIENCE}, volume = {13}, unique-id = {33503036}, issn = {1664-462X}, abstract = {Global climate change has resulted in geographic range shifts of flora and fauna at a global scale. Extreme environments, like the Arctic, are seeing some of the most pronounced changes. This region covers 14% of the Earth's land area, and while many arctic species are widespread, understanding ecotypic variation at the genomic level will be important for elucidating how range shifts will affect ecological processes. Tussock cottongrass (Eriophorum vaginatum L.) is a foundation species of the moist acidic tundra, whose potential decline due to competition from shrubs may affect ecosystem stability in the Arctic. We used double-digest Restriction Site-Associated DNA sequencing to identify genomic variation in 273 individuals of E. vaginatum from 17 sites along a latitudinal gradient in north central Alaska. These sites have been part of 30 C years of ecological research and are inclusive of a region that was part of the Beringian refugium. The data analyses included genomic population structure, demographic models, and genotype by environment association. Genomewide SNP investigation revealed environmentally associated variation and population structure across the sampled range of E. vaginatum, including a genetic break between populations north and south of treeline. This structure is likely the result of subrefugial isolation, contemporary isolation by resistance, and adaptation. Forty-five candidate loci were identified with genotype-environment association (GEA) analyses, with most identified genes related to abiotic stress. Our results support a hypothesis of limited gene flow based on spatial and environmental factors for E. vaginatum, which in combination with life history traits could limit range expansion of southern ecotypes northward as the tundra warms. This has implications for lower competitive attributes of northern plants of this foundation species likely resulting in changes in ecosystem productivity.}, keywords = {climate change; Arctic; Refugia; Environmental niche modeling; landscape genomics; Eriophorum vaginatum; genotype-environment association analyses}, year = {2022}, eissn = {1664-462X} } @article{MTMT:33873821, title = {Ethylene Response Factor LlERF110 Mediates Heat Stress Response via Regulation of LlHsfA3A Expression and Interaction with LlHsfA2 in Lilies (Lilium longiflorum)}, url = {https://m2.mtmt.hu/api/publication/33873821}, author = {Wang, Yue and Zhou, Yunzhuan and Wang, Rui and Xu, Fuxiang and Tong, Shi and Song, Cunxu and Shao, Yanan and Yi, Mingfang and He, Junna}, doi = {10.3390/ijms232416135}, journal-iso = {INT J MOL SCI}, journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES}, volume = {23}, unique-id = {33873821}, issn = {1661-6596}, abstract = {Heat stress seriously affects the quality of cut lily flowers. The ethylene response factors (ERFs) participate in heat stress response in many plants. In this study, heat treatment increased the production of ethylene in lily leaves, and exogenous ethylene treatment enhanced the heat resistance of lilies. LlERF110, an important transcription factor in the ethylene signaling pathway, was found in the high-temperature transcriptome. The coding region of LlERF110 (969 bp) encodes 322 amino acids and LlERF110 contains an AP2/ERF typical domain belonging to the ERF subfamily group X. LlERF110 was induced by ethylene and was expressed constitutively in all tissues. LlERF110 is localized in the nucleus and has transactivation activity. Virus-induced gene silencing of LlERF110 in lilies reduced the basal thermotolerance phenotypes and significantly decreased the expression of genes involved in the HSF-HSP pathway, such as LlHsfA2, LlHsfA3A, and LlHsfA5, which may activate other heat stress response genes; and LlHsp17.6 and LlHsp22, which may protect proteins under heat stress. LlERF110 could directly bind to the promoter of LlHsfA3A and activate its expression according to the yeast one hybrid and dual-luciferase reporter assays. LlERF110 interacts with LlHsfA2 in the nucleus according to BiFC and the yeast two-hybrid assays. In conclusion, these results indicate that LlERF110 plays an important role in the basal thermotolerance of lilies via regulation of the HSF-HSP pathway, which could be the junction of the heat stress response pathway and the ethylene signaling pathway.}, keywords = {Heat stress; ETHYLENE; Lilium; LlHSFA2; LlERF110; LlHsfA3}, year = {2022}, eissn = {1422-0067}, orcid-numbers = {He, Junna/0000-0003-3681-4340} } @article{MTMT:32281943, title = {Mechanisms of elevated CO2-induced thermotolerance in plants: the role of phytohormones}, url = {https://m2.mtmt.hu/api/publication/32281943}, author = {Ahammed, Golam Jalal and Guang, Yelan and Yang, Youxin and Chen, Jinyin}, doi = {10.1007/s00299-021-02751-z}, journal-iso = {PLANT CELL REP}, journal = {PLANT CELL REPORTS}, unique-id = {32281943}, issn = {0721-7714}, abstract = {Rising atmospheric CO2 is a key driver of climate change, intensifying drastic changes in meteorological parameters. Plants can sense and respond to changes in environmental parameters including atmospheric CO2 and temperatures. High temperatures beyond the physiological threshold can significantly affect plant growth and development and thus attenuate crop productivity. However, elevated atmospheric CO2 can mitigate the deleterious effects of heat stress on plants. Despite a large body of literature supporting the positive impact of elevated CO2 on thermotolerance, the underlying biological mechanisms and precise molecular pathways that lead to enhanced tolerance to heat stress remain largely unclear. Under heat stress, elevated CO2-induced expression of respiratory burst oxidase homologs (RBOHs) and reactive oxygen species (ROS) signaling play a critical role in stomatal movement, which optimizes gas exchange to enhance photosynthesis and water use efficiency. Notably, elevated CO2 also fortifies antioxidant defense and redox homeostasis to alleviate heat-induced oxidative damage. Both hormone-dependent and independent pathways have been shown to mediate high CO2-induced thermotolerance. The activation of heat-shock factors and subsequent expression of heat-shock proteins are thought to be the essential mechanism downstream of hormone and ROS signaling. Here we review the role of phytohormones in plant response to high atmospheric CO2 and temperatures. We also discuss the potential mechanisms of elevated CO2-induced thermotolerance by focusing on several key phytohormones such as ethylene. Finally, we address some limitations of our current understanding and the need for further research to unveil the yet-unknown crosstalk between plant hormones in mediating high CO2-induced thermotolerance in plants.}, keywords = {Reactive oxygen species; Phytohormones; CO2 enrichment; RBOH; Stomatal closure; Heat-shock proteins (HSPs); heat-shock factors}, year = {2021}, eissn = {1432-203X}, orcid-numbers = {Ahammed, Golam Jalal/0000-0001-9621-8431; Yang, Youxin/0000-0001-8078-5677} } @article{MTMT:32017191, title = {Molecular mechanisms of plant tolerance to heat stress: current landscape and future perspectives}, url = {https://m2.mtmt.hu/api/publication/32017191}, author = {Haider, S. and Iqbal, J. and Naseer, S. and Yaseen, T. and Shaukat, M. and Bibi, H. and Ahmad, Y. and Daud, H. and Abbasi, N.L. and Mahmood, T.}, doi = {10.1007/s00299-021-02696-3}, journal-iso = {PLANT CELL REP}, journal = {PLANT CELL REPORTS}, volume = {40}, unique-id = {32017191}, issn = {0721-7714}, abstract = {Key message: We summarize recent studies focusing on the molecular basis of plant heat stress response (HSR), how HSR leads to thermotolerance, and promote plant adaptation to recurring heat stress events. Abstract: The global crop productivity is facing unprecedented threats due to climate change as high temperature negatively influences plant growth and metabolism. Owing to their sessile nature, plants have developed complex signaling networks which enable them to perceive changes in ambient temperature. This in turn activates a suite of molecular changes that promote plant survival and reproduction under adverse conditions. Deciphering these mechanisms is an important task, as this could facilitate development of molecular markers, which could be ultimately used to breed thermotolerant crop cultivars. In current article, we summarize mechanisms involve in plant heat stress acclimation with special emphasis on advances related to heat stress perception, heat-induced signaling, heat stress-responsive gene expression and thermomemory that promote plant adaptation to short- and long-term-recurring heat-stress events. In the end, we will discuss impact of emerging technologies that could facilitate the development of heat stress-tolerant crop cultivars. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.}, keywords = {transcription factors; signal transduction; Heat stress; gene expression regulation; THERMOTOLERANCE; epigenetics; thermomemory}, year = {2021}, eissn = {1432-203X}, pages = {2247-2271} } @article{MTMT:33503038, title = {Agronomic and genetic approaches for enhancing tolerance to heat stress in rice: a review}, url = {https://m2.mtmt.hu/api/publication/33503038}, author = {Rasheed, Adnan and Seleiman, Mahmoud F. and Nawaz, Muhammad and Mahmood, Athar and Rizwan Anwar, Muhammad and Ahsin Ayub, Muhammad and Aamer, Muhammad and El-Esawi, Mohamed A. and El-Harty, Ehab H. and Batool, Maria and Hassan, Muhammad U. and Wu, Ziming and Li, Huijie}, doi = {10.15835/nbha49412501}, journal-iso = {NOT BOT HORTI AGROBO}, journal = {NOTULAE BOTANICAE HORTI AGROBOTANICI CLUJ-NAPOCA}, volume = {49}, unique-id = {33503038}, issn = {0255-965X}, abstract = {Rice is an important cereal crop worldwide that serves as a dietary component for half of the world's population. Climate change, especially global warming is a rising threat to crop production and food security. Therefore, enhancing rice growth and yield is a crucial challenge in stress-prone environments. Frequent episodes of heat stress threaten rice production all over the world. Breeders and agronomists undertake several techniques to ameliorate the adverse effects of heat stress to safeguard global rice production. The selection of suitable sowing time application of plant hormones, osmoprotectants and utilization of appropriate fertilizers and signaling molecules are essential agronomic practices to mitigate the adverse effects of heat stress on rice. Likewise, developing genotypes with improved morphological, biochemical, and genetic attributes is feasible and practical way to respond to this challenge. The creation of more genetic recombinants and the identification of traits responsible for heat tolerance could allow the selection of early-flowering cultivars with resistance to heat stress. This review details the integration of several agronomic, conventional breeding, and molecular approaches like hybridization, pure line selection, master-assisted-selection (MAS), transgenic breeding and CRRISPR/Cas9 that promise rapid and efficient development and selection of heat-tolerant rice genotypes. Such information's could be used to determine the future research directions for rice breeders and other researchers working to improve the heat tolerance in rice.}, keywords = {RICE; Heat stress; Plant hormones; agronomic approaches; Breeding approaches}, year = {2021}, eissn = {1842-4309}, orcid-numbers = {Rasheed, Adnan/0000-0003-3557-2511} } @article{MTMT:32385737, title = {Differential regulation of drought stress by biological membrane transporters and channels}, url = {https://m2.mtmt.hu/api/publication/32385737}, author = {Singh, Simranjeet and Kumar, Vijay and Parihar, Parul and Dhanjal, Daljeet Singh and Singh, Rachana and Ramamurthy, Praveen C. and Prasad, Ram and Singh, Joginder}, doi = {10.1007/s00299-021-02730-4}, journal-iso = {PLANT CELL REP}, journal = {PLANT CELL REPORTS}, volume = {40}, unique-id = {32385737}, issn = {0721-7714}, abstract = {Stress arising due to abiotic factors affects the plant's growth and productivity. Among several existing abiotic stressors like cold, drought, heat, salinity, heavy metal, etc., drought condition tends to affect the plant's growth by inducing two-point effect, i.e., it disturbs the water balance as well as induces toxicity by disturbing the ion homeostasis, thus hindering the growth and productivity of plants, and to survive under this condition, plants have evolved several transportation systems that are involved in regulating the drought stress. The role of membrane transporters has gained interest since genetic engineering came into existence, and they were found to be the important modulators for tolerance, avoidance, ion movements, stomatal movements, etc. Here in this comprehensive review, we have discussed the role of transporters (ABA, protein, carbohydrates, etc.) and channels that aids in withstanding the drought stress as well as the regulatory role of transporters involved in osmotic adjustments arising due to drought stress. This review also provides a gist of hydraulic conductivity by roots that are involved in regulating the drought stress.}, keywords = {STRESS TOLERANCE; ABSCISIC ACID; drought stress; membrane transporter; Protein transporters}, year = {2021}, eissn = {1432-203X}, pages = {1565-1583}, orcid-numbers = {Dhanjal, Daljeet Singh/0000-0003-4791-7388; Prasad, Ram/0000-0002-3670-0450; Singh, Joginder/0000-0001-6968-4912} }