TY - JOUR AU - Khator, Khushboo AU - Parihar, Suman AU - Jasik, Jan AU - Shekhawat, Gyan Singh TI - Nitric oxide in plants: an insight on redox activity and responses toward abiotic stress signaling JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV VL - 19 PY - 2024 IS - 1 PG - 16 SN - 1559-2316 DO - 10.1080/15592324.2023.2298053 UR - https://m2.mtmt.hu/api/publication/34607060 ID - 34607060 AB - Plants, as sessile organisms, are subjected to diverse abiotic stresses, including salinity, desiccation, metal toxicity, thermal fluctuations, and hypoxia at different phases of plant growth. Plants can activate messenger molecules to initiate a signaling cascade of response toward environmental stresses that results in either cell death or plant acclimation. Nitric oxide (NO) is a small gaseous redox-active molecule that exhibits a plethora of physiological functions in growth, development, flowering, senescence, stomata closure and responses to environmental stresses. It can also facilitate alteration in protein function and reprogram the gene profiling by direct or indirect interaction with different target molecules. The bioactivity of NO can be manifested through different redox-based protein modifications including S-nitrosylation, protein nitration, and metal nitrosylation in plants. Although there has been considerable progress in the role of NO in regulating stress signaling, still the physiological mechanisms regarding the abiotic stress tolerance in plants remain unclear. This review summarizes recent advances in understanding the emerging knowledge regarding NO function in plant tolerance against abiotic stresses. The manuscript also highlighted the importance of NO as an abiotic stress modulator and developed a rational design for crop cultivation under a stress environment. LA - English DB - MTMT ER - TY - JOUR AU - Luqman, Muhammad AU - Shahbaz, Muhammad AU - Maqsood, Muhammad Faisal AU - Farhat, Fozia AU - Zulfiqar, Usman AU - Siddiqui, Manzer H. AU - Masood, Atifa AU - Aqeel, Muhammad AU - Haider, Fasih Ullah TI - Effect of strigolactone on growth, photosynthetic efficiency, antioxidant activity, and osmolytes accumulation in different maize (Zea mays L.) hybrids grown under drought stress JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV PY - 2023 PG - 13 SN - 1559-2316 DO - 10.1080/15592324.2023.2262795 UR - https://m2.mtmt.hu/api/publication/34364282 ID - 34364282 AB - Drought alters plant physiology, morphology, and biochemical pathways, necessitating effective mitigation strategies. Strigolactones (SLs) are phytohormones known to enhance plant growth under abiotic stress. However, their specific impact on drought stress in maize remains unclear. This study aimed to determine the optimal SL concentration for mitigating drought stress in two maize hybrids (HY-1898, FH-1046). Maize plants were subjected to 60% field capacity drought stress in a pot experiment. After 40 d, different concentrations (0, 0.001, 0.01, and 0.1 mg L-1) of the synthetic SL analogue GR24 were applied to evaluate their effects on growth features, photosynthesis attributes, and osmolyte accumulation in the maize hybrids. Results showed that exogenous SL application significantly increased photosynthetic pigments in maize hybrids under drought stress. Chlorophyll content, gas exchange characteristics, net CO2 assimilation rate, stomatal conductance, water use efficiency, and antioxidant activities were enhanced by GR24. Leaf ascorbic acid and total phenolics also increased with SL application. Organic osmolytes, such as glycine betaine and free proline, were elevated in both maize hybrids under drought stress. Yield-related parameters, including cob diameter, cob weight, number of seeds per cob, and number of seeds per plant, were significantly increased by GR24 under drought stress. Our findings highlight the potential of GR24 foliar application to mitigate drought stress and promote maize growth and grain yield in a concentration-dependent manner. The minimum effective SL concentration against drought stress was determined to be 0.01 mg L-1. Overall, foliar application of GR24 could serve as a sustainable approach for drought tolerance in agriculture. LA - English DB - MTMT ER - TY - JOUR AU - Tanaka, Yasuhiro AU - Fujita, Kenya AU - Date, Minori AU - Watanabe, Bunta AU - Matsui, Kenji TI - Structure-activity relationship of volatile compounds that induce defense-related genes in maize seedlings JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV PY - 2023 PG - 9 SN - 1559-2316 DO - 10.1080/15592324.2023.2234115 UR - https://m2.mtmt.hu/api/publication/34249955 ID - 34249955 N1 - Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan Chemistry Laboratory, The Jikei University School of Medicine, Chofu, Japan Export Date: 28 February 2024; Cited By: 0; Correspondence Address: K. Matsui; Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8515, Japan; email: matsui@yamaguchi-u.ac.jp AB - Volatile organic compounds mediate plant-to-plant communication, and plants receiving volatile cues can acquire greater defenses against attackers. It has been expected that volatiles are received by factors that eventually lead to the induction of defense-related gene expression; however, the nature of these factors remain unclear. Structure-activity relationship analysis of gene expression induction by volatiles should provide insights into the nature of these factors. We conducted a structure-activity relationship study using maize seedlings and (Z)-3-hexen-1-yl acetate (Z3HAC) as the lead compound. The acid portion of Z3HAC was not essential, and (Z)-3-hexen-1-ol (Z3HOL), which is formed after the hydrolysis of Z3HAC, is likely the structure essential for the upregulation of the genes. The double bond of Z3HOL is essential; however, its geometry is indistinguishable. Strict specificity was detected regarding the length of the methylene chain on the & alpha;- and & omega;-sides of the double bond, and therefore, the 3-hexen-1-ol structure was found to be the ultimate structure. This finding provides insight into the nature of the factors that interact with a volatile compound and subsequently activate signaling pathways, leading to the upregulation of a subset of defense genes. LA - English DB - MTMT ER - TY - JOUR AU - Ibarra-Villarreal, A.L. AU - Villarreal-Delgado, M.F. AU - Parra-Cota, F.I. AU - Yepez, E.A. AU - Guzmán, C. AU - Gutierrez-Coronado, M.A. AU - Valdez, L.C. AU - Saint-Pierre, C. AU - de, Los Santos-Villalobos S. TI - Effect of a native bacterial consortium on growth, yield, and grain quality of durum wheat (Triticum turgidum L. subsp. durum) under different nitrogen rates in the Yaqui Valley, Mexico JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV PY - 2023 SN - 1559-2316 DO - 10.1080/15592324.2023.2219837 UR - https://m2.mtmt.hu/api/publication/34188828 ID - 34188828 N1 - Departamento de Ciencias Agronómicas y Veterinarias, Instituto Tecnológico de Sonora, Sonora, Mexico Sartorius de México, Estado de México, Mexico Campo Experimental Norman E. Borlaug, Centro de Investigación Regional Noroeste, Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Sonora, Mexico Departamento de Genética, Escuela Técnica Superior de Ingeniería Agronómica Y de Montes, Edificio Gregor Mendel, Campus de Rabanales, Universidad de Córdoba. CeiA3, Córdoba, Spain International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico Cited By :2 Export Date: 11 October 2023 Correspondence Address: de Los Santos-Villalobos, S.; Departamento de Ciencias Agronómicas y Veterinarias, 5 de Febrero 818 Sur, Col. Centro, Sonora, Mexico; email: sergio.delossantos@itson.edu.mx LA - English DB - MTMT ER - TY - JOUR AU - Mmbando, Gideon Sadikiel TI - The recent relationship between ultraviolet-B radiation and biotic resistance in plants: a novel non-chemical strategy for managing biotic stresses JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV PY - 2023 PG - 9 SN - 1559-2316 DO - 10.1080/15592324.2023.2191463 UR - https://m2.mtmt.hu/api/publication/33880599 ID - 33880599 N1 - Export Date: 28 February 2024; Cited By: 0; Correspondence Address: G.S. Mmbando; Department of Biology, College of Natural and Mathematical Sciences, University of Dodoma (UDOM), Dodoma, Tanzania; email: gideonmmbando@gmail.com AB - Ultraviolet-B radiation (UVB; 280-315 nm) is a significant environmental factor that alters plant development, changes interactions between species, and reduces the prevalence of pests and diseases. While UVB radiation has negative effects on plant growth and performance at higher doses, at lower and ambient doses, UVB radiation acts as a non-chemical method for managing biotic stresses by having positive effects on disease resistance and genes that protect plants from pests. Understanding the recent relationship between UVB radiation and plants' biotic stresses is crucial for the development of crops that are resistant to UVB and biotic stresses. However, little is known about the recent interactions between UVB radiation and biotic stresses in plants. This review discusses the most recent connections between UVB radiation and biotic stresses in crops, including how UVB radiation affects a plant's resistance to disease and pests. The interaction of UVB radiation with pathogens and herbivores has been the subject of the most extensive research of these. This review also discusses additional potential strategies for conferring multiple UVB-biotic stress resistance in crop plants, such as controlling growth inhibition, miRNA 396 and 398 modulations, and MAP kinase. This study provides crucial knowledge and methods for scientists looking to develop multiple resistant crops that will improve global food security. LA - English DB - MTMT ER - TY - JOUR AU - Zuo, Xiru AU - Yang, Cheng AU - Yan, Yana AU - Huang, Guiyan AU - Li, Ruimin TI - Systematic analysis of the thioredoxin gene family in Citrus sinensis: identification, phylogenetic analysis, and gene expression patterns JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV VL - 18 PY - 2023 IS - 1 PG - 10 SN - 1559-2316 DO - 10.1080/15592324.2023.2294426 UR - https://m2.mtmt.hu/api/publication/34646527 ID - 34646527 N1 - Export Date: 23 February 2024 Correspondence Address: Huang, G.; College of Life Sciences, No. 1 Shiyuannan Road, Jiangxi Province, China; email: huangguiyan@gnnu.edu.cn LA - English DB - MTMT ER - TY - JOUR AU - Lu, Na AU - Zhang, Lei AU - Tian, Yuqing AU - Yang, Jinghua AU - Zheng, Shicun AU - Wang, Liang AU - Guo, Wei TI - Biosynthetic pathways and related genes regulation of bioactive ingredients in mulberry leaves JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV VL - 18 PY - 2023 IS - 1 PG - 11 SN - 1559-2316 DO - 10.1080/15592324.2023.2287881 UR - https://m2.mtmt.hu/api/publication/34602205 ID - 34602205 AB - Mulberry leaves are served not only as fodder for silkworms but also as potential functional food, exhibiting nutritional and medical benefits due to the complex and diverse constituents, including alkaloids, flavonoids, phenolic acids, and benzofurans, which possess a wide range of biological activities, such as anti-diabete, anti-oxidant, anti-inflammatory, and so on. Nevertheless, compared with the well-studied phytochemistry and pharmacology of mulberry leaves, the current understanding of the biosynthesis mechanisms and regulatory mechanisms of active ingredients in mulberry leaves remain unclear. Natural resources of these active ingredients are limited owing to their low contents in mulberry leaves tissues and the long growth cycle of mulberry. Biosynthesis is emerging as an alternative means for accumulation of the desired high-value compounds, which can broaden channels for their large-scale green productions. Therefore, this review summarizes the recent research advance on the correlative key genes, enzyme biocatalytic reactions and biosynthetic pathways of valuable natural ingredients (i.e. alkaloids, flavonoids, phenolic acids, and benzofurans) in mulberry leaves, thereby offering important insights for their further biomanufacturing. LA - English DB - MTMT ER - TY - JOUR AU - Tian, Fan AU - Wang, Jun-Cai AU - Bai, Xin-Xiang AU - Yang, Yan-Bing AU - Huang, Lang AU - Liao, Xiao-Feng TI - Symbiotic seed germination and seedling growth of mycorrhizal fungi in Paphiopedilum hirsutissimun (Lindl.Ex Hook.) Stein from China JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV VL - 18 PY - 2023 IS - 1 PG - 15 SN - 1559-2316 DO - 10.1080/15592324.2023.2293405 UR - https://m2.mtmt.hu/api/publication/34590030 ID - 34590030 AB - Similar to other orchid species, Paphiopedilum hirsutissimum (Lindl.ex Hook.) Stein, relies on nutrients provided by mycorrhizal fungus for seed germination and seedling development in the wild owing to a lack of endosperm in its seeds. Therefore, obtaining suitable and specialized fungi to enhance seed germination, seedling formation, and further development is considered a powerful tool for orchid seedling propagation, reintroduction, and species conservation. In this study, we investigated the diversity, abundance, and frequency of endophytic fungal strains in the root organs of P. hirsutissimum. One family and five genera of the fungi were isolated and identified through rDNA-ITS sequencing. The ability of isolated fungi to germinate in vitro from the seeds of this species was evaluated, and the development of P. hirsutissimum protocorm has been described. The findings showed that the treatments inoculated with endophytic fungal DYXY033 may successfully support the advanced developmental stage of seedlings up to stage 5. In addition, scanning electron microscopy (SEM) revealed that the mycelium of this strain began to invade from either end of the seeds up to the embryo, extending rapidly from the inside to the outside. Its lengthening resulted in the bursting of the seed coat to form protocorms, which developed into seedlings. The results showed that DYXY033 has a high degree of mycobiont specificity under in vitro symbiotic seed germination conditions and is a representative mycorrhizal fungus with ecological value for the species. In summary, this strain may particularly be significant for the protection of P. hirsutissimum species that are endangered in China. In the long run, it may also contribute to global efforts in reintroducing orchid species and in realizing in situ restorations of threatened orchid populations. LA - English DB - MTMT ER - TY - JOUR AU - Xu, C. AU - Wang, Y. AU - Yang, H. AU - Tang, Y. AU - Liu, B. AU - Hu, X. AU - Hu, Z. TI - Cold acclimation alleviates photosynthetic inhibition and oxidative damage induced by cold stress in citrus seedlings JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV VL - 18 PY - 2023 IS - 1 SN - 1559-2316 DO - 10.1080/15592324.2023.2285169 UR - https://m2.mtmt.hu/api/publication/34564631 ID - 34564631 N1 - Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, Jiangxi Academy of Agricultural Sciences, Nanchang, China Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing, China Cited By :1 Export Date: 6 February 2024 Correspondence Address: Hu, Z.; Nanchang Key Laboratory of Germplasm Innovation and Utilization of Fruit and Tea, China; email: huzhongdong@jxaas.cn AB - Cold stress seriously inhibits plant growth and development, geographical distribution, and yield stability of plants. Cold acclimation (CA) is an important strategy for modulating cold stress, but the mechanism by which CA induces plant resistance to cold stress is still not clear. The purpose of this study was to investigate the effect of CA treatment on the cold resistance of citrus seedlings under cold stress treatment, and to use seedlings without CA treatment as the control (NA). The results revealed that CA treatment increased the content of photosynthetic pigments under cold stress, whereas cold stress greatly reduced the value of gas exchange parameters. CA treatment also promoted the activity of Rubisco and FBPase, as well as led to an upregulation of the transcription levels of photosynthetic related genes (rbcL and rbcS)，compared to the NA group without cold stress. In addition, cold stress profoundly reduced photochemical chemistry of photosystem II (PSII), especially the maximum quantum efficiency (Fv/Fm) in PSII. Conversely, CA treatment improved the chlorophyll a fluorescence parameters, thereby improving electron transfer efficiency. Moreover, under cold stress, CA treatment alleviated oxidative stress damage to cell membranes by inhibiting the concentration of H2O2 and MDA, enhancing the activities of superoxide dismutase (SOD), catalase (CAT), ascorbic acid peroxidase (APX) and glutathione reductase (GR), accompanied by an increase in the expression level of antioxidant enzyme genes (CuZnSOD1, CAT1, APX and GR). Additionally, CA also increased the contents of abscisic acid (ABA) and salicylic acid (SA) in plants under cold stress. Overall, we concluded that CA treatment suppressed the negative effects of cold stress by enhancing photosynthetic performance, antioxidant enzymes functions and plant hormones contents. © 2023 The Author(s). Published with license by Taylor & Francis Group, LLC. LA - English DB - MTMT ER - TY - JOUR AU - Zhang, Ying AU - Ma, Yuru AU - Zhang, Hao AU - Xu, Jiahui AU - Gao, Xiaokuan AU - Zhang, Tengteng AU - Liu, Xigang AU - Guo, Lin AU - Zhao, Dan TI - Environmental F actors coordinate circadian clock function and rhythm to regulate plant development JF - PLANT SIGNALING AND BEHAVIOR J2 - PLANT SIGNAL BEHAV VL - 18 PY - 2023 IS - 1 PG - 12 SN - 1559-2316 DO - 10.1080/15592324.2023.2231202 UR - https://m2.mtmt.hu/api/publication/34261962 ID - 34261962 AB - Changes in the external environment necessitate plant growth plasticity, with environmental signals such as light, temperature, and humidity regulating growth and development. The plant circadian clock is a biological time keeper that can be "reset" to adjust internal time to changes in the external environment. Exploring the regulatory mechanisms behind plant acclimation to environmental factors is important for understanding how plant growth and development are shaped and for boosting agricultural production. In this review, we summarize recent insights into the coordinated regulation of plant growth and development by environmental signals and the circadian clock, further discussing the potential of this knowledge. LA - English DB - MTMT ER -