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Volume 23
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Review

Physiological and Molecular Mechanisms of Plant Responses to Copper Stress

by
Guang Chen
1,2,3,*,
Jia Li
1,2,3,
Huimin Han
4,
Ruiying Du
1,2,3 and
Xu Wang
1,2,3,*
1
Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
2
Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
3
Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
4
State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang 455000, China
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2022, 23(21), 12950; https://doi.org/10.3390/ijms232112950
Submission received: 4 October 2022 / Revised: 22 October 2022 / Accepted: 23 October 2022 / Published: 26 October 2022
(This article belongs to the Special Issue Molecular Mechanisms of Metal Toxicity and Plant Tolerance)
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Abstract

Copper (Cu) is an essential micronutrient for humans, animals, and plants, and it participates in various morphological, physiological, and biochemical processes. Cu is a cofactor for a variety of enzymes, and it plays an important role in photosynthesis, respiration, the antioxidant system, and signal transduction. Many studies have demonstrated the adverse effects of excess Cu on crop germination, growth, photosynthesis, and antioxidant activity. This review summarizes the biological functions of Cu, the toxicity of excess Cu to plant growth and development, the roles of Cu transport proteins and chaperone proteins, and the transport process of Cu in plants, as well as the mechanisms of detoxification and tolerance of Cu in plants. Future research directions are proposed, which provide guidelines for related research.
Keywords: copper toxicity; absorption and transport; copper homeostasis; tolerance mechanism copper toxicity; absorption and transport; copper homeostasis; tolerance mechanism

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MDPI and ACS Style

Chen, G.; Li, J.; Han, H.; Du, R.; Wang, X. Physiological and Molecular Mechanisms of Plant Responses to Copper Stress. Int. J. Mol. Sci. 2022, 23, 12950. https://doi.org/10.3390/ijms232112950

AMA Style

Chen G, Li J, Han H, Du R, Wang X. Physiological and Molecular Mechanisms of Plant Responses to Copper Stress. International Journal of Molecular Sciences. 2022; 23(21):12950. https://doi.org/10.3390/ijms232112950

Chicago/Turabian Style

Chen, Guang, Jia Li, Huimin Han, Ruiying Du, and Xu Wang. 2022. "Physiological and Molecular Mechanisms of Plant Responses to Copper Stress" International Journal of Molecular Sciences 23, no. 21: 12950. https://doi.org/10.3390/ijms232112950

APA Style

Chen, G., Li, J., Han, H., Du, R., & Wang, X. (2022). Physiological and Molecular Mechanisms of Plant Responses to Copper Stress. International Journal of Molecular Sciences, 23(21), 12950. https://doi.org/10.3390/ijms232112950

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