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

ABSTRACT: 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 high

SUBMITTER: Qiu D 

PROVIDER: S-EPMC8384601 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature