Coronatine enhances drought tolerance via improving antioxidative capacity to maintaining higher photosynthetic performance in soybean

Coronatine enhances drought tolerance via improving antioxidative capacity to maintaining higher photosynthetic performance in soybean

Crown Copyright © 2013. Published by Elsevier Ireland Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant science : an international journal of experimental plant biology. - 1985. - 210(2013) vom: 04. Sept., Seite 1-9
1. Verfasser: Hao, Ling (VerfasserIn)
Weitere Verfasser: Wang, Yuqiong, Zhang, Juan, Xie, Yan, Zhang, Mingcai, Duan, Liusheng, Li, Zhaohu
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Plant science : an international journal of experimental plant biology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't APX Antioxidant defense CAT COR Ci Coronatine Drought F(v)/F(m) mehr... G(s) H(2)O(2) MDA NPQ P(n) PEPCase POD Photosynthesis RWC RuBPCase SOD Soybean Tr ascorbate peroxidase catalase coronatine hydrogen peroxide intercellular CO(2) malondialdehyde maximal efficiency of PS II photochemical reaction net photosynthetic rate non-photochemical quenching coefficient peroxidase activity phosphoenolpyruvate carboxylase photochemical quenching coefficient q(p) relative water content ribulose-1,5-bisphosphate carboxylase stomatal conductance superoxide dismutase transpiration rate Amino Acids Antioxidants Carbon Radioisotopes Indenes Water 059QF0KO0R Chlorophyll 1406-65-1 Malondialdehyde 4Y8F71G49Q 62251-96-1 Hydrogen Peroxide BBX060AN9V Catalase EC 1.11.1.6 Phosphoenolpyruvate Carboxylase EC 4.1.1.31 Ribulose-Bisphosphate Carboxylase EC 4.1.1.39
Beschreibung
Zusammenfassung:Crown Copyright © 2013. Published by Elsevier Ireland Ltd. All rights reserved.
Coronatine (COR), a structural and functional mimic of jasmonates, is involved in a wide array of effects on plant development and defence responses. This study was conducted to explore the role of exogenously applied COR in alleviating the adversities of drought stress in soybean. COR treatment markedly increased the activities of antioxidant enzymes and proline content, and reduced the accumulation of malondialdehyde and hydrogen peroxide under drought stress. Thus, COR-treated plants had higher leaf relative water content and lower electrolye leakage, which led to higher chlorophyll content, activities of RuBPCase and PEPCase, and net photosynthetic rate compared to control plants exposed to drought. COR also increased maximal efficiency of PS II photochemical reaction and photochemical quenching coefficient, but decreased non-photochemical quenching coefficient. These beneficial effects led to enhanced photosynthetic performance and the translocation of assimilated (14)C which promoted growth and accumulation of dry biomass in COR-treated soybean plants subjected to drought. Interestingly, COR application did not affect the growth and biomass accumulation under well-watered condition. These results suggested the involvement of COR on improving drought tolerance in soybean by modulating antioxidant systems and membrane stability to maintain higher photosynthetic performance
Beschreibung:Date Completed 27.01.2014
Date Revised 13.12.2023
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2259
DOI:10.1016/j.plantsci.2013.05.006