The BEL1-like transcription factor GhBLH5-A05 participates in cotton response to drought stress

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外文摘要：Drought stress impairs crop growth and development.BEL1-like family transcription factors may be involved in plant response to drought stress,but little is known of the molecular mechanism by which these proteins regulate plant response and defense to drought stress.Here we show that the BEL1-like transcription factor GhBLH5-A05 functions in cotton(Gossypium hirsutum)response and defense to drought stress.Expression of GhBLH5-A05 in cotton was induced by drought stress.Overexpression of GhBLH5-A05 in both Arabidopsis and cotton increased drought tolerance,whereas silencing GhBLH5-A05 in cotton resulted in elevated sensitivity to drought stress.GhBLH5-A05 binds to cis elements in the promoters of GhRD20-A09 and GhDREB2C-D05 to activate the expression of these genes.GhBLH5-A05 interacted with the KNOX transcription factor GhKNAT6-A03.Co-expression of GhBLH5-A05 and GhKNAT6-A03 increased the transcription of GhRD20-A09 and GhDREB2C-D05.We conclude that GhBLH5-A05 acts as a regulatory factor with GhKNAT6-A03 functioning in cotton response to drought stress by activating the expression of the drought-responsive genes GhRD20-A09 and GhDREB2C-D05.

外文关键词：

Cotton(Gossypium hirsutum)BEL1-like transcription factorDrought stressTranscriptional regulationDrought tolerance

作者：

Jing-Bo Zhang、Yao Wang、Shi-Peng Zhang、Fan Cheng、Yong Zheng、Yang Li、Xue-Bao Li

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作者单位：

Hubei Key Laboratory of Genetic Regulation and Integrative Biology,School of Life Sciences,Central China Normal University,Wuhan 430079,Hubei,China

College of Life Sciences,Xinjiang Normal University,Urumqi 830017,Xinjiang,China

基金：

Project from the Ministry of Agriculture of China for Transgenic ResearchNational Natural Science Foundation of China

项目编号：

2014ZX0800927B31871667

出版年：

2024

DOI：

10.1016/j.cj.2023.10.011

作物学报(英文版)

CSTPCD

ISSN：

年,卷(期)：2024.12(1)

参考文献量56