Thiamine functions as a key activator for modulating plant health and broad‐spectrum tolerance in cotton

• DOI: 10.1111/tpj.15793
• Publication Date: 2022-05-04T08:01:16Z
• Authors: Weixi Li; Xinyue Mi; Xuanxiang Jin; Daiwei Zhang; Guozhong Zhu; Xiaoguang Shang; Dayong Zhang; Wangzhen Guo
• Keywords: Biotic stress; Metabolic pathway

Global climate changes cause an increase of abiotic and biotic stresses that tremendously threaten the world's crop security. However, studies on broad-spectrum response pathways involved in are relatively rare. Here, by comparing time-dependent transcriptional co-expression analysis cotton (Gossypium hirsutum) root tissues under stress conditions, we discovered common stress-responsive genes metabolism different stresses, which included circadian rhythm, thiamine galactose metabolism, carotenoid, phenylpropanoid, flavonoid, zeatin biosynthesis, mitogen-activated protein kinase signaling pathway. We found was important intersection between stresses; key synthesis genes, GhTHIC GhTHI1, were highly induced at early stage stresses. confirmed crucial necessary for growth development, its deficiency could be recovered exogenous supplement. Furthermore, revealed enhanced tolerance via increasing calcium signal transduction activating downstream genes. Overall, our demonstrated played a role tradeoff plant health resistance. The caused transiently induce upregulation biosynthetic vivo, while it totally salvaged application, significantly improve enhance development.