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Zinc‐finger protein GmZF351 improves both salt and drought stress tolerance in soybean.

Authors :
Wei, Wei
Lu, Long
Bian, Xiao‐Hua
Li, Qing‐Tian
Han, Jia‐Qi
Tao, Jian‐Jun
Yin, Cui‐Cui
Lai, Yong‐Cai
Li, Wei
Bi, Ying‐Dong
Man, Wei‐Qun
Chen, Shou‐Yi
Zhang, Jin‐Song
Zhang, Wan‐Ke
Source :
Journal of Integrative Plant Biology. Jul2023, Vol. 65 Issue 7, p1636-1650. 15p.
Publication Year :
2023

Abstract

Abiotic stress is one of the most important factors reducing soybean yield. It is essential to identify regulatory factors contributing to stress responses. A previous study found that the tandem CCCH zinc‐finger protein GmZF351 is an oil level regulator. In this study, we discovered that the GmZF351 gene is induced by stress and that the overexpression of GmZF351 confers stress tolerance to transgenic soybean. GmZF351 directly regulates the expression of GmCIPK9 and GmSnRK, leading to stomata closing, by binding to their promoter regions, which carry two CT(G/C)(T/A)AA elements. Stress induction of GmZF351 is mediated through reduction in the H3K27me3 level at the GmZF351 locus. Two JMJ30‐demethylase‐like genes, GmJMJ30‐1 and GmJMJ30‐2, are involved in this demethylation process. Overexpression of GmJMJ30‐1/2 in transgenic hairy roots enhances GmZF351 expression mediated by histone demethylation and confers stress tolerance to soybean. Yield‐related agronomic traits were evaluated in stable GmZF351‐transgenic plants under mild drought stress conditions. Our study reveals a new mode of GmJMJ30‐GmZF351 action in stress tolerance, in addition to that of GmZF351 in oil accumulation. Manipulation of the components in this pathway is expected to improve soybean traits and adaptation under unfavorable environments. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
16729072
Volume :
65
Issue :
7
Database :
Academic Search Index
Journal :
Journal of Integrative Plant Biology
Publication Type :
Academic Journal
Accession number :
165045191
Full Text :
https://doi.org/10.1111/jipb.13474