Summary
This narrative review synthesises current understanding of enzymatic antioxidant defence systems in plants, with particular emphasis on how key enzymes (superoxide dismutase, catalase, peroxidase, and glutathione-related enzymes) function to scavenge reactive oxygen species and mitigate abiotic stress. The paper discusses molecular characterisation, reaction mechanisms, cross-talk between enzymatic components, and applications in developing stress-tolerant transgenic crops.
Regional applicability
The paper is a mechanistic review without geographic specificity and addresses fundamental plant physiology applicable globally. Findings are relevant to United Kingdom agricultural research on stress-tolerant crop development, particularly given emerging climate variability and the need for drought or temperature-resilient cultivars.
Key measures
Enzymatic components (SOD, CAT, POX, GPX, GR, GST, APX, MDHAR, DHAR); reactive oxygen species (ROS) scavenging; stress tolerance mechanisms
Outcomes reported
Review of enzymatic antioxidant defence systems in plants, particularly superoxide dismutase, catalase, peroxidase, and related enzymes, and their roles in response to abiotic stress conditions.
Topic tags
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