Roles of Glutathione in Mediating Abscisic Acid Signaling and Its Regulation of Seed Dormancy and Drought Tolerance
Department of Plant Science, 222 Agriculture Building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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Academic Editors: Sonia Gazzarrini and Eiji Nambara
Genes 2021, 12(10), 1620; https://doi.org/10.3390/genes12101620
Received: 2 September 2021
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Revised: 4 October 2021
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Accepted: 13 October 2021
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Published: 14 October 2021
(This article belongs to the Special Issue New Advances in Research on the Role of Abscisic Acid in Plant Development)
Plant growth and development and interactions with the environment are regulated by phytohormones and other signaling molecules. During their evolution, plants have developed strategies for efficient signal perception and for the activation of signal transduction cascades to maintain proper growth and development, in particular under adverse environmental conditions. Abscisic acid (ABA) is one of the phytohormones known to regulate plant developmental events and tolerance to environmental stresses. The role of ABA is mediated by both its accumulated level, which is regulated by its biosynthesis and catabolism, and signaling, all of which are influenced by complex regulatory mechanisms. Under stress conditions, plants employ enzymatic and non-enzymatic antioxidant strategies to scavenge excess reactive oxygen species (ROS) and mitigate the negative effects of oxidative stress. Glutathione (GSH) is one of the main antioxidant molecules playing a critical role in plant survival under stress conditions through the detoxification of excess ROS, maintaining cellular redox homeostasis and regulating protein functions. GSH has recently emerged as an important signaling molecule regulating ABA signal transduction and associated developmental events, and response to stressors. This review highlights the current knowledge on the interplay between ABA and GSH in regulating seed dormancy, germination, stomatal closure and tolerance to drought.
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Keywords:
abscisic acid; glutathione; dormancy; germination; stomatal closure; drought
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MDPI and ACS Style
Koramutla, M.K.; Negi, M.; Ayele, B.T. Roles of Glutathione in Mediating Abscisic Acid Signaling and Its Regulation of Seed Dormancy and Drought Tolerance. Genes 2021, 12, 1620. https://doi.org/10.3390/genes12101620
AMA Style
Koramutla MK, Negi M, Ayele BT. Roles of Glutathione in Mediating Abscisic Acid Signaling and Its Regulation of Seed Dormancy and Drought Tolerance. Genes. 2021; 12(10):1620. https://doi.org/10.3390/genes12101620
Chicago/Turabian StyleKoramutla, Murali K., Manisha Negi, and Belay T. Ayele. 2021. "Roles of Glutathione in Mediating Abscisic Acid Signaling and Its Regulation of Seed Dormancy and Drought Tolerance" Genes 12, no. 10: 1620. https://doi.org/10.3390/genes12101620
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