@article{MTMT:34802566, title = {Salicylic acid- and ethylene-dependent effects of the ER stress-inducer tunicamycin on the photosynthetic light reactions in tomato plants}, url = {https://m2.mtmt.hu/api/publication/34802566}, author = {Iqbal, Nadeem and Ördög, Attila and Koprivanacz, Péter and Kukri, András and Czékus, Zalán and Poór, Péter}, doi = {10.1016/j.jplph.2024.154222}, journal-iso = {J PLANT PHYSIOL}, journal = {JOURNAL OF PLANT PHYSIOLOGY}, volume = {295}, unique-id = {34802566}, issn = {0176-1617}, year = {2024}, eissn = {1618-1328}, orcid-numbers = {Ördög, Attila/0000-0002-1867-8237; Poór, Péter/0000-0002-4539-6358} } @article{MTMT:34802564, title = {Plant Protection by Tannins Depends on Defence-Related Phytohormones}, url = {https://m2.mtmt.hu/api/publication/34802564}, author = {Iqbal, Nadeem and Poór, Péter}, doi = {10.1007/s00344-024-11291-1}, journal-iso = {J PLANT GROWTH REGUL}, journal = {JOURNAL OF PLANT GROWTH REGULATION}, unique-id = {34802564}, issn = {0721-7595}, abstract = {Plants produce a wide variety of secondary metabolites to sustain and protect themselves against a wide range of stresses. Among these metabolites, tannins are one of the most abundant polyphenolic compounds, accounting for 25% of the dry weight of leaves, roots and bark of woody plants, but are also abundant in flowering and seed-producing plants. The presence of tannins in these organs serves to protect plants against herbivorous and pathogenic attack through their antidigestive and antimicrobial properties. In addition, tannins play a role in regulating plant growth and development by inhibiting the consumption of unripe fruits due to their astringency. In addition, several studies have also revealed various roles of them under environmental stresses. Tannins can be classified into condensed tannins (CTs), hydrolysable tannins (HTs) and phlorotannins. They are synthesised in plants via the acetate–malonate and shikimic acid pathways. Their accumulation is regulated by several transcription factors during normal development and under different stress conditions. Despite their multiple roles in plant life, information on the regulation of tannin metabolism by defence-related phytohormones is very limited. To cope with biotic and abiotic stresses, plant responses are regulated by defence-related phytohormones such as salicylic acid (SA), jasmonic acid (JA), ethylene (ET) and abscisic acid (ABA), which act as regulators of tannin production under adverse conditions. This review focuses on tannin production, moreover its occurrence, defence potential and regulation by phytohormones under different environmental and biotic stresses, based on the most recent and relevant data.}, year = {2024}, eissn = {1435-8107}, orcid-numbers = {Poór, Péter/0000-0002-4539-6358} } @article{MTMT:34771221, title = {Investigation of the Allelopathic Effect of Two Invasive Plant Species in Rhizotron System}, url = {https://m2.mtmt.hu/api/publication/34771221}, author = {Bakacsy, László and Kardos, Luca Viktória and Szepesi, Ágnes and Nagy, Krisztina Napsugár and Vasas, Andrea and Feigl, Gábor}, doi = {10.3390/life14040475}, journal-iso = {LIFE-BASEL}, journal = {LIFE-BASEL}, volume = {14}, unique-id = {34771221}, abstract = {A key question in plant invasion biology is why invasive plants are more competitive in their introduced habitat than in their native habitat. Studies show that invasive species exhibit allelopathy, influencing other plants by releasing chemicals. Research on allelopathy uses in vitro tests, investigating effects on seed germination and seedling development. Although soil plays a role in modifying allelopathic effects, observations with soil are rare and almost nothing is known about the root development of test plants developing in soil and the effects of allelopathic compounds on root architecture. Our study evaluates the allelopathic effects of false indigo-bush (Amorpha fruticosa L.) and common milkweed (Asclepias syriaca L.) on oilseed rape growth as a model plant. The rhizotron system was used to study the effect of morphology and root architecture. Leaf–soil mixtures at 0.5%, 1%, and 5% concentrations were used. Shoot and root development was strongly inhibited at 5%. But there was no difference between the allelopathy of the two species, and the application of lower concentrations did not show any effect, demonstrating that soil has a significant modifying effect on their allelopathy. Our results highlight that the development of roots growing in the soil is also worth investigating in connection with allelopathy, which can strengthen the ecological importance of allelochemicals during successful invasions.}, year = {2024}, eissn = {2075-1729}, orcid-numbers = {Bakacsy, László/0000-0003-2593-1795; Vasas, Andrea/0000-0002-1818-7702; Feigl, Gábor/0000-0001-6524-9147} } @article{MTMT:34721677, title = {Mitochondrial complex I subunit NDUFS8.2 modulates responses to stresses associated with reduced water availability}, url = {https://m2.mtmt.hu/api/publication/34721677}, author = {Zsigmond, Laura and Juhász-Erdélyi, Annabella and Valkai, Ildikó and Aleksza, Dávid and Rigó, Gábor and Kant, Kamal and Szepesi, Ágnes and Fiorani, Fabio and Körber, Niklas and Kovács, László and Szabados, László}, doi = {10.1016/j.plaphy.2024.108466}, journal-iso = {PLANT PHYSIOL BIOCH (PPB)}, journal = {PLANT PHYSIOLOGY AND BIOCHEMISTRY}, volume = {208}, unique-id = {34721677}, issn = {0981-9428}, year = {2024}, eissn = {1873-2690}, orcid-numbers = {Zsigmond, Laura/0000-0002-1388-1762; Szepesi, Ágnes/0000-0003-3043-4857} } @article{MTMT:34719000, title = {A case study on the early stage of Pinus nigra invasion and its impact on species composition and pattern in Pannonic sand grassland}, url = {https://m2.mtmt.hu/api/publication/34719000}, author = {Bakacsy, László and Szepesi, Ágnes}, doi = {10.1038/s41598-024-55811-1}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {14}, unique-id = {34719000}, issn = {2045-2322}, abstract = {Alien woody species are successful invaders, frequently used for afforestation in regions like semi-arid lands. Shrubs and trees create important microhabitats in arid areas. Understorey vegetation in these habitats has unique species composition and coexistence. However, the impact of solitary woody species on understorey vegetation is less understood. This study evaluated the effect of native ( Juniperus communis ) and invasive solitary conifers ( Pinus nigra ) on surrounding vegetation, where individuals were relatively isolated (referred to as solitary conifers). The field study conducted in Pannonic dry sand grassland in 2018 recorded plant and lichen species presence around six selected solitary conifers. Composition and pattern of understorey vegetation were assessed using 26 m belt transects with 520 units of 5 cm × 5 cm contiguous microquadrats. Compositional diversity (CD) and the number of realized species combinations (NRC) were calculated from the circular transects. Results showed native conifer J. communis created more complex, organized microhabitats compared to alien P. nigra . CD and NRC values were significantly higher under native conifers than invasive ones ( p = 0.045 and p = 0.026, respectively). Native species also had more species with a homogeneous pattern than the alien species. Alien conifers negatively affected understorey vegetation composition and pattern: some species exhibited significant gaps and clusters of occurrences along the transects under P. nigra . Based on our study, the removal of invasive woody species is necessary to sustain habitat diversity.}, year = {2024}, eissn = {2045-2322}, orcid-numbers = {Bakacsy, László/0000-0003-2593-1795} } @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:34442303, title = {Fusaric acid-evoked oxidative stress affects plant defence system by inducing biochemical changes at subcellular level}, url = {https://m2.mtmt.hu/api/publication/34442303}, author = {Iqbal, Nadeem and Czékus, Zalán and Ördög, Attila and Poór, Péter}, doi = {10.1007/s00299-023-03084-9}, journal-iso = {PLANT CELL REP}, journal = {PLANT CELL REPORTS}, volume = {43}, unique-id = {34442303}, issn = {0721-7714}, abstract = {Fusaric acid (FA) is one of the most harmful phytotoxins produced in various plant–pathogen interactions. Fusarium species produce FA as a secondary metabolite, which can infect many agronomic crops at all stages of development from seed to fruit, and FA production can further compromise plant survival because of its phytotoxic effects. FA exposure in plant species adversely affects plant growth, development and crop yield. FA exposure in plants leads to the generation of reactive oxygen species (ROS), which cause cellular damage and ultimately cell death. Therefore, FA-induced ROS accumulation in plants has been a topic of interest for many researchers to understand the plant–pathogen interactions and plant defence responses. In this study, we reviewed the FA-mediated oxidative stress and ROS-induced defence responses of antioxidants, as well as hormonal signalling in plants. The effects of FA phytotoxicity on lipid peroxidation, physiological changes and ultrastructural changes at cellular and subcellular levels were reported. Additionally, DNA damage, cell death and adverse effects on photosynthesis have been explained. Some possible approaches to overcome the harmful effects of FA in plants were also discussed. It is concluded that FA-induced ROS affect the enzymatic and non-enzymatic antioxidant system regulated by phytohormones. The effects of FA are also associated with other photosynthetic, ultrastructural and genotoxic modifications in plants.}, year = {2024}, eissn = {1432-203X}, orcid-numbers = {Ördög, Attila/0000-0002-1867-8237; Poór, Péter/0000-0002-4539-6358} } @article{MTMT:34432038, title = {Soils in distress: The impacts and ecological risks of (micro)plastic pollution in the terrestrial environment}, url = {https://m2.mtmt.hu/api/publication/34432038}, author = {Bodor, Attila and Feigl, Gábor and Kolossa, Bálint and Mészáros, Enikő and Laczi, Krisztián and Kovács, Etelka and Perei, Katalin and Rákhely, Gábor}, doi = {10.1016/j.ecoenv.2023.115807}, journal-iso = {ECOTOX ENVIRON SAFE}, journal = {ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY}, volume = {269}, unique-id = {34432038}, issn = {0147-6513}, year = {2024}, eissn = {1090-2414}, orcid-numbers = {Feigl, Gábor/0000-0001-6524-9147; Laczi, Krisztián/0000-0002-9399-7406; Kovács, Etelka/0000-0003-0969-5964; Perei, Katalin/0000-0001-8989-2284; Rákhely, Gábor/0000-0003-2557-3641} } @article{MTMT:34353068, title = {Nickel oxide nanoparticles induce cell wall modifications, root anatomical changes, and nitrosative signaling in ecotypes of Ni hyperaccumulator Odontarrhena lesbiaca}, url = {https://m2.mtmt.hu/api/publication/34353068}, author = {Kondak, Selahattin and Janovszky, Patrick Martin and Szőllősi, Réka and Molnár, Árpád and Kondak, Dóra and Adedokun, Oluwatosin Peace and Dimitrakopoulos, Panayiotis G. and Rónavári, Andrea and Kónya, Zoltán and Erdei, László and Galbács, Gábor and Kolbert, Zsuzsanna}, doi = {10.1016/j.envpol.2023.122874}, journal-iso = {ENVIRON POLLUT}, journal = {ENVIRONMENTAL POLLUTION}, volume = {341}, unique-id = {34353068}, issn = {0269-7491}, year = {2024}, eissn = {1873-6424}, orcid-numbers = {Kondak, Selahattin/0000-0003-4979-5986; Kondak, Dóra/0000-0002-2338-6896; Adedokun, Oluwatosin Peace/0009-0005-6193-002X; Dimitrakopoulos, Panayiotis G./0000-0002-8374-4392; Rónavári, Andrea/0000-0001-7054-0975; Kónya, Zoltán/0000-0002-9406-8596; Galbács, Gábor/0000-0002-1799-5329; Kolbert, Zsuzsanna/0000-0002-7819-4672} } @article{MTMT:34299196, title = {The allelochemical potential of an invasive ornamental plant, the Indian blanket flower (Gaillardia pulchella Foug.)}, url = {https://m2.mtmt.hu/api/publication/34299196}, author = {Nagy, Krisztina Napsugár and Kardos, Luca Viktória and Orbán, Zsófia and Bakacsy, László}, doi = {10.1111/1442-1984.12441}, journal-iso = {PLANT SPEC BIOL}, journal = {PLANT SPECIES BIOLOGY}, volume = {39}, unique-id = {34299196}, issn = {0913-557X}, abstract = {Abstract Global spread of invasive plant species threatens biodiversity significantly, with a particularly high presence of invasives in the Asteraceae family. This is partly due to their wide use as ornamental plants and their rapid reproduction and allelopathy. The Indian blanket flower (Gaillardia pulchella) is a native North American species widely used as an ornamental plant and has become invasive in other countries. Although it contains bioactive compounds, its allelopathic impact on other plants has been largely unexplored. We conducted in vitro tests on oilseed rape (Brassica napus) germination and early growth to assess blanket flower’s allelopathy. Seeds were exposed to aqueous extracts at three different concentrations (10%, 20%, and 40%). The 40% extract significantly inhibited germination during the treatment. All three concentrations inhibited root growth, with the 40% treatment showing this effect from the second day. In contrast, the extracts promoted significantly shoot elongation. Fresh weight of seedlings was not affected by the extract, but the 10% treatment resulted in higher mass. These findings provide evidence of blanket flower’s allelopathic effects, shedding light on its invasive potential.}, keywords = {extracts; ALLELOPATHY; biological invasion; ornamental plant; Gaillardia pulchella}, year = {2024}, eissn = {1442-1984}, pages = {102-108}, orcid-numbers = {Bakacsy, László/0000-0003-2593-1795} }