International Journal of Molecular Sciences
International Journal of Molecular Sciences
4 years ago

IJMS, Vol. 21, Pages 5208: ROS Homeostasis in Abiotic Stress Tolerance in Plants

IJMS, Vol. 21, Pages 5208: ROS Homeostasis in Abiotic Stress Tolerance in Plants
Kalaivani K. Nadarajah
Climate change-induced abiotic stress results in crop yield and production losses. These stresses result in changes at the physiological and molecular level that affect the development and growth of the plant. Reactive oxygen species (ROS) is formed at high levels due to abiotic stress within different organelles, leading to cellular damage. Plants have evolved mechanisms to control the production and scavenging of ROS through enzymatic and non-enzymatic antioxidative processes. However, ROS has a dual function in abiotic stresses where, at high levels, they are toxic to cells while the same molecule can function as a signal transducer that activates a local and systemic plant defense response against stress. The effects, perception, signaling, and activation of ROS and their antioxidative responses are elaborated in this review. This review aims to provide a purview of processes involved in ROS homeostasis in plants and to identify genes that are triggered in response to abiotic-induced oxidative stress. This review articulates the importance of these genes and pathways in understanding the mechanism of resistance in plants and the importance of this information in breeding and genetically developing crops for resistance against abiotic stress in plants.

Publisher URL: https://www.mdpi.com/1422-0067/21/15/5208

Open URL: https://www.mdpi.com/1422-0067/21/15/5208/pdf

DOI: 10.3390/ijms21155208

Open access
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