Secondary metabolite pathway of SDG (secoisolariciresinol) was observed to trigger ROS scavenging system in response to Ca2+ stress in cotton

文献类型： 外文期刊

第一作者： Feng, Xixian

作者： Feng, Xixian;Yin, Zujun;Wang, Junjuan;Zhang, Yuexin;Zhang, Hong;Fan, Yapeng;Xu, Nan;Huang, Hui;Ni, Kesong;Liu, Xiaoyu;Lei, Yuqian;Jiang, Tiantian;Wang, Jing;Rui, Cun;Chen, Chao;Wang, Shuai;Chen, Xiugui;Lu, Xuke;Wang, Delong;Guo, Lixue;Zhao, Lanjie;Ye, Wuwei;Peng, Fanjia;Li, Yujun;Wang, Yongbo

作者机构：

关键词： High Ca2+ stress; CML; Secoisolariciresinol (SDG); Reactive oxygen species (ROS); Cotton

期刊名称：GENOMICS （ 影响因子：4.31； 五年影响因子：4.38 ）

ISSN： 0888-7543

年卷期： 2022 年 114 卷 4 期

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收录情况： SCI

摘要： Ca2+ is an essential nutrient for plants and animals which plays an important role in plant signal transduction. Although the function and regulation of mechanism of Ca2+ in alleviating various biotic and abiotic stresses in plants have been studied deeply, the molecular mechanism to adapt high Ca2+ stress is still unclear in cotton. In this study, 103 cotton accessions were germinated under 200 mM CaCl2 stress, and two extremely Ca2+-resistant (Zhong 9807, R) and Ca2+-sensitive (CPI 50, S) genotypes were selected from 103 cotton accessions. The two accessions were then germinated for 5 days in 0 mM CaCl2 and 200 mM CaCl2 respectively, after which they were sampled for transcriptome sequencing. Morphological and physiological analyses suggested that PLR2 specifically expressed in R may enhance the ability of cotton to scavenge ROS by promoting the synthesis of SDG. In conclusion, this study proposed the adaptation mechanisms to response to the high Ca2+ stress in cotton which can contribute to improve the stress resistance of cotton.

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