Antioxidant Signaling and Redox Regulation in Drought- and Salinity-Stressed Plants
| Autor: | Soumen Bhattacharjee, Manashi Aditya, Ananya Chakrabarty, Nivedita Dey, Nabanita Banik |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine chemistry.chemical_classification Reactive oxygen species Antioxidant Chemistry medicine.medical_treatment Photosynthesis medicine.disease 01 natural sciences Redox Cell biology Salinity 03 medical and health sciences 030104 developmental biology Respiration medicine Photorespiration Dehydration 010606 plant biology & botany |
| Zdroj: | Drought Stress Tolerance in Plants, Vol 1 ISBN: 9783319288970 |
| DOI: | 10.1007/978-3-319-28899-4_20 |
| Popis: | Drought and salinity alter redox homeostasis by disrupting basic metabolic processes, such as photosynthesis, respiration, photorespiration, among others, and ultimately causing nonspecific oxidative damage. Information-rich redox buffers in the form of low-molecular-weight antioxidants combined with several other antioxidative enzymes combat those adverse changes. Significantly, antioxidants have been found to provide essential information on the redox state and to influence gene expression under dehydration and salinity stress, which offer protection and stress acclimation. A growing body of evidence strongly suggests the importance of the role of redox homeostasis under salinity and dehydration stress in which the reactive oxygen species (ROS) and antioxidants interact at the metabolic interface for a signal derived from unfavorable environmental cues. This review attempts to detail the role of redox regulation and antioxidant signaling in response to dehydration and salinity stress. In addition, it elaborates our current understanding of ROS–antioxidant interactions in sensing the salinity and dehydration stresses and initiating the signaling necessary for survival. |
| Databáze: | OpenAIRE |
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