ROS Regulation During Abiotic Stress Responses in Crop Plants
By Jun You, Zhulong Chan. Frontiers in Plant Science, 2015
1,033 citations recorded by the source corpus.
Abiotic stresses such as drought, cold, salt and heat cause reduction of plant growth and loss of crop yield worldwide. Reactive oxygen species (ROS) including hydrogen peroxide (H2O2), superoxide anions (O2•-), hydroxyl radical (OH•) and singlet oxygen (1O2) are by-products of physiological metabolisms, and are precisely controlled by enzymatic and non-enzymatic antioxidant defense systems. ROS are significantly accumulated under abiotic stress conditions, which cause oxidative damage and eventually resulting in cell death. Recently, ROS have been also recognized as key players in the complex signaling network of plants stress responses. The involvement of ROS in signal transduction implies that there must be coordinated function of regulation networks to maintain ROS at non-toxic levels in a delicate balancing act between ROS production, involving ROS generating enzymes and the unavoidable production of ROS during basic cellular metabolism, and ROS-scavenging pathways. Increasing evidence showed that ROS play crucial roles in abiotic stress responses of crop plants for the activation of stress-response and defense pathways. More importantly, manipulating ROS levels provides an opportunity to enhance stress tolerances of crop plants under a variety of unfavorable environmental conditions. This review presents an overview of current knowledge about homeostasis regulation of ROS in crop plants. In particular, we summarize the essential proteins that are involved in abiotic stress tolerance of crop plants through ROS regulation. Finally, the challenges toward the improvement of abiotic stress tolerance through ROS regulation in crops are discussed.
Subfields: Molecular Biology, Plant Science
View Paper: https://www.semanticscholar.org/paper/68c3c2c3b8c2ec55f041d41cbd35625e43471104
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Citations in the corpus
- Jasmonic Acid in Plant Abiotic Stress Tolerance and Interaction with Abscisic Acid (2021, background): “Abiotic stresses, including drought, cold, salt, and heavy metal stress, negatively affect plant growth and productivity by disrupting a variety of biological systems such as reactive oxygen species (ROS) homeostasis, the electron transport system, electrolyte maintenance, organelle integrity, and m”
- A Review on Plant Responses to Salt Stress and Their Mechanisms of Salt Resistance (2021, background): “Osmotic regulatory substances such as proline [96] and mannitol [97] are also found to have the ability to scavenge ROS.”