数字农科院2.0

eATP activates energy dynamic gene GhG6PD to improve salt tolerance in cotton

文献类型： 外文期刊

作者： Fange Wu;Xiugui Chen;Junjuan Wang;Jihua Yang;Lidong Wang;Hao Lan;Menghao Zhang;Ruize Song;Xinrui Zhang;Xin Yu;Hui Huang;Xiao Chen;Xuke Lu;Shuai Wang;Wuwei Ye

作者机构：

关键词： Cotton;Energy metabolism;Plant hormone signals;Salt stress;Transcriptome

期刊名称： Plant Physiology and Biochemistry

ISSN： 0981-9428

年卷期： 2025 年 229 卷

页码：

收录情况： SCIE（2025版）

摘要： Cotton is an important strategic living material with high economic value in China and faces various abiotic stresses during growth. In this study, salt-tolerant cotton 'Zhong 9807′ was used as the material, and 400 μmol/L ATP was screened as the optimal concentration to improve cotton seed germination and alleviate salt stress during seedling stage by vertical double-layer filter paper method. After RNA-seq analysis, it was found that there were 7961 differential genes between ATP-treated and untreated groups. ATP can maintain energy stability under salt stress in cotton, activate energy production, photosynthesis-related genes, regulate phytohormone levels, and activate transcription factors to improve salt tolerance. Additionally, we selected a gene, GhG6PD (GH_A09G0427), specifically upregulated by ATP from the transcriptome for gene silencing experiments. Following silencing, the reducing power (NADPH) within the cotton plant decreased significantly, resulting in oxidative damage. This demonstrates that ATP application activates the expression of this gene, thereby conferring resistance to environmental stress. In this study, we proposed a regulatory network of ATP in cotton in response to salt stress, which provides a new idea to improve the salt tolerance of cotton.

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