TaASR1-D confers abiotic stress resistance by affecting ROS accumulation and ABA signalling in transgenic wheat

文献类型： 外文期刊

第一作者： Qiu, Ding

作者： Qiu, Ding;Zhou, Yu;Xiao, Jie;Hu, Rui;Wei, Qiuhui;Zhang, Yang;Feng, Jialu;Sun, Fusheng;Sun, Jiutong;Yang, Guangxiao;He, Guangyuan;Hu, Wei

作者机构：

关键词： ASR; abiotic stress; transgenic wheat; ROS; ABA; grain yield

期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：8.154； 五年影响因子：7.658 ）

ISSN： 1467-7644

年卷期：

页码：

收录情况： SCI

摘要： Cultivating new crop cultivars with multiple abiotic stress tolerances is important for crop production. The abscisic acid-stress-ripening (ASR) protein has been shown to confer abiotic stress tolerance in plants. However, the mechanisms of ASR function under stress condition remain largely unclear. In this study, we characterized all ASR family members in common wheat and constitutively overexpressed TaASR1-D in a commercial hexaploid wheat cultivar Zhengmai 9023. The transgenic wheat plants exhibited increased tolerance to multiple abiotic stresses and increased grain yields under salt stress condition. Overexpression of TaASR1-D conferred enhanced antioxidant capacity and ABA sensitivity in transgenic wheat plants. Further, RNA in situ hybridization results showed that TaASR1-D had higher expression levels in the vascular tissues of leaves and the parenchyma cells around the vascular tissues of roots and stems. Yeast one-hybrid and electrophoretic mobility shift assays revealed that TaASR1-D could directly bind the specific cis-elements in the promoters of TaNCED1 and TaGPx1-D. In conclusion, our findings suggest that TaASR1-D can be used to breed new wheat cultivars with increased multiple abiotic stress tolerances, and TaASR1-D enhances abiotic stress tolerances by reinforcing antioxidant capacity and ABA signalling.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序