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Melatonin Alleviates Abscisic Acid Deficiency Inhibition on Photosynthesis and Antioxidant Systems in Rice under Salt Stress

Feiyu Yan1,2, Xin Chen1, Zhenzhen Wang1, Yuxuan Xia1, Dehui Zheng1, Sirui Xue1, Hongliang Zhao1,2, Zhiwei Huang1,2, Yuan Niu1,2, Guoliang Zhang1,2,*

1 School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai’an, 223003, China
2 Jianghuai Plain Crop Industry Engineering Research Institute, Huaiyin Institute of Technology, Huai’an, 223003, China

* Corresponding Author: Guoliang Zhang. Email: email

Phyton-International Journal of Experimental Botany 2024, 93(7), 1421-1440. https://doi.org/10.32604/phyton.2024.053914

Abstract

Melatonin and abscisic acid, as major plant hormones, play important roles in the physiological and biochemical activities of crops, but the interaction between the two under salt stress is not yet clear. This study investigated the endogenous levels of melatonin and abscisic acid in rice by using exogenous melatonin, abscisic acid, and their synthetic inhibitors, and examined their interactions under salt stress. The research results indicate that melatonin and abscisic acid can improve rice salt tolerance. Melatonin alleviated the salt sensitivity caused by abscisic acid deficiency, increased antioxidant enzyme activity and antioxidant content in rice treated with abscisic acid synthesis inhibitors, and reduced total reactive oxygen species content and thiobarbituric acid reactive substance accumulation. Melatonin also increased the activity of key photosynthetic enzymes and the content of photosynthetic pigments, maintaining the parameters of photosynthetic gas exchange and chlorophyll fluorescence. In summary, melatonin alleviated the effects of abscisic acid deficiency on photosynthesis and antioxidant systems in rice and improved salt tolerance. This study is beneficial for expanding the understanding of melatonin regulation of crop salt tolerance.

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APA Style
Yan, F., Chen, X., Wang, Z., Xia, Y., Zheng, D. et al. (2024). Melatonin alleviates abscisic acid deficiency inhibition on photosynthesis and antioxidant systems in rice under salt stress. Phyton-International Journal of Experimental Botany, 93(7), 1421-1440. https://doi.org/10.32604/phyton.2024.053914
Vancouver Style
Yan F, Chen X, Wang Z, Xia Y, Zheng D, Xue S, et al. Melatonin alleviates abscisic acid deficiency inhibition on photosynthesis and antioxidant systems in rice under salt stress. Phyton-Int J Exp Bot. 2024;93(7):1421-1440 https://doi.org/10.32604/phyton.2024.053914
IEEE Style
F. Yan et al., “Melatonin Alleviates Abscisic Acid Deficiency Inhibition on Photosynthesis and Antioxidant Systems in Rice under Salt Stress,” Phyton-Int. J. Exp. Bot., vol. 93, no. 7, pp. 1421-1440, 2024. https://doi.org/10.32604/phyton.2024.053914



cc Copyright © 2024 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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