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Updated: Jun 7, 2025

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Catalytic Scavenging of Plant Reactive Oxygen Species In Vivo by Anionic Cerium Oxide Nanoparticles
Published on: August 26, 2018
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Class III peroxidase: An essential enzyme for enhancing plant physiological and developmental process by maintaining
Simin Li1, Hongxiang Zheng2, Na Sui3
1Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China.
International Journal of Biological Macromolecules
|November 16, 2024
Summary
Class III peroxidases (CIII PRXs) are key plant enzymes regulating reactive oxygen species (ROS). This review details their roles in growth, development, and stress responses, highlighting research challenges and future directions.
Area of Science:
- Plant Biology
- Biochemistry
- Molecular Biology
Background:
- Plants face environmental stresses, leading to reactive oxygen species (ROS) accumulation.
- ROS act as signaling molecules with dual roles in plant physiology.
- Class III peroxidases (CIII PRXs) are crucial antioxidant enzymes in plants, maintaining ROS homeostasis.
Purpose of the Study:
- To review the classification, structure, and diverse functions of CIII PRXs.
- To elucidate the molecular mechanisms of CIII PRXs in plant growth, development, and stress responses.
- To discuss challenges and potential solutions for studying CIII PRX gene functions.
Main Methods:
- Literature review and synthesis of existing research on CIII PRXs.
- Analysis of CIII PRX roles in physiological processes like cell wall modification and lignin biosynthesis.
- Examination of CIII PRX involvement in abiotic (salt, drought) and biotic (pathogen) stress signaling.
Main Results:
- CIII PRXs are involved in plant growth, cell wall dynamics, and lignin synthesis.
- These enzymes play critical roles in plant responses to environmental stresses.
- PRX gene research highlights their importance in signal transduction pathways.
Conclusions:
- CIII PRXs are essential for plant adaptation and survival under stress.
- Functional redundancy of CIII PRX genes presents a significant research challenge.
- Novel techniques are needed to overcome redundancy and fully understand individual CIII PRX functions.
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