Reactive oxygen species-mediated signaling during abiotic stress

By Archana Singh, Amit Kumar, S. Yadav, Indrakant Kumar Singh. Plant Gene, 2019

211 citations recorded by the source corpus.

Abstract Abiotic stress causes alterations in physiological, biochemical and metabolic equilibrium in the plant cells, leading to reduction in protein turn-over, change in post translational modification of proteins, impaired photosynthetic capability and increase in ROS production. The stress-induced ROS at higher levels can trigger oxidation of biomolecules, decomposition of membranes, inactivation of enzymes and alteration in gene expression. On the other hand, ROS is also detected by its sensors and signal transduction pathways are activated, which further transports the signal to the nucleus through redox reactions and involvement of Mitogen-activated Protein Kinase (MAPK) pathway. Consequently, change in gene expression patterns is instigated by involvement of stress-regulated cis-acting elements (ARE, CORE, W-box, GCC box, as-1 like) and stress-responsive transcription factors (NAC, MYB, WRKY, RAV, bZIP, AP2/ERF, ZAT). Finally, these gene products are transmitted back to the cell organelles to facilitate prevention from oxidative damage. Additionally, epigenetic changes play a central role in mediating cellular responses to abiotic stresses. Here, we review the recent updates on ROS-mediated signaling and monitoring of transcriptional and epigenetic changes that occur in a cell due to oxidative stress.

Subfields: Molecular Biology, Plant Science

View Paper: https://www.semanticscholar.org/paper/e703d03e9ac38041091c1356d6709ac3aa23867e

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In Molecular Biology

1. Kamrun Nahar
2. M. Hasanuzzaman
3. M. Fujita
4. J. Mahmud
5. M. Bhuyan
6. A. Raza
7. T. I. Anee

In Plant Science

1. Kamrun Nahar
2. M. Hasanuzzaman
3. M. Fujita
4. J. Mahmud
5. M. Bhuyan
6. T. I. Anee
7. A. Raza
8. Faisal Zulfiqar

Citations in the corpus

• Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator (2020, background): “such as Fe2+ converts both O2•− and H2O2 to highly stable •OH [6].”
• Regulation of Ascorbate-Glutathione Pathway in Mitigating Oxidative Damage in Plants under Abiotic Stress (2019, background): “Insufficient energy indulgence in the photosynthetic process during abiotic stresses reduces molecular oxygen and then produces a large amount of ROS, including H2O2, O2−, (1)O2, OH•, and so on (Figure 8) [10,86].”