The wheat TaSAMS10 improves survival rate under waterlogging stress by inducing ethylene synthesis and early flowering
文献类型： 外文期刊
作者： Cheng, Bingyun 1 ; Feng, Xiaobing 1 ; Buitrago, Sebastian 1 ; Wan, Kui 1 ; Xu, Yanhao 2 ; Xu, Le 1 ; Pan, Rui 1 ; Zhang, Wenying 1 ;
作者机构： 1.Yangtze Univ, Res Ctr Crop Stresses Resistance Technol, MARA Key Lab Sustainable Crop Prod Middle Reaches, Jingzhou 434025, Peoples R China
2.Hubei Acad Agr Sci, Inst Food Crops, Wuhan 430064, Peoples R China
关键词： Triticum aestivum; Hypoxia stress; S-adenosylmethionine synthetase; Ethylene synthesis; Early flowering
期刊名称：PLANT GROWTH REGULATION （ 影响因子：4.2； 五年影响因子：4.0 ）
ISSN： 0167-6903
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Monson and irregular pluviometric distributions occur frequently, causing waterlogging, which reduces wheat yield under hypoxic conditions. Key hypoxia-related genes are of paramount importance for breeding waterlogging-tolerant wheat varieties. In this study, two spring wheat genotypes with different waterlogging tolerance levels were used to evaluate S-adenosylmethionine synthase family genes. Using wheat genome information, physicochemical properties of the SAMS gene family were analyzed using bioinformatics methods, and TaSAMS10 was chosen because of its positive waterlogging response. The TaSAMS10 gene was cloned into a binary vector then transformed into Arabidopsis plants, and the waterlogging response was recorded. The cis-acting elements in the promoter region of TaSAMS10 revealed the regulatory elements essential for anaerobic induction. Aerenchyma formation was detected in the tolerant genotype but not in the sensitive genotype of wheat. Whereas in TaSAMS10-overexpression Arabidopsis lines, old leaves and roots were exposed to ethylene accumulation, early flowering, and increased survival rates after 20 days of waterlogging treatment. Taken together, the two strategies "escape" and "tolerance" were combined by TaSAMS10 to resist waterlogging stress.
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