FvMYB44, a Strawberry R2R3-MYB Transcription Factor, Improved Salt and Cold Stress Tolerance in Transgenic Arabidopsis
文献类型： 外文期刊
作者： Li, Wenhui 1 ; Wei, Yangfan 1 ; Zhang, Lihua 1 ; Wang, Yu 2 ; Song, Penghui 3 ; Li, Xingguo 1 ; Han, Deguo 1 ;
作者机构： 1.Northeast Agr Univ, Coll Hort & Landscape Architecture, Natl Local Joint Engn Res Ctr Dev & Utilizat Small, Key Lab Biol & Genet Improvement Hort Crops Northe, Harbin 150030, Peoples R China
2.Heilongjiang Acad Agr Sci, Hort Branch, Harbin 150040, Peoples R China
3.Heilongjiang Acad Agr Sci, Inst Rural Revitalizat Sci & Technol, Harbin 150028, Peoples R China
关键词： Fragaria vesca; FvMYB44; salt stress; cold stress; Arabidopsis thaliana
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2023 年 13 卷 4 期
页码：
收录情况： SCI
摘要： MYB (v-MYB avian myeloblastosis viral oncogene homolog) transcription factor (TF) family has numerous members with complex and diverse functions, which perform an integral role in regulating the plant's response to adversity. This study used cloning to obtain a novel MYB TF gene from the diploid strawberry Fragaria vesca, which was given the designation FvMYB44. Subcellular localization results showed that the protein of FvMYB44 was a nuclear localization protein. The resistance of Arabidopsis thaliana to salt and low temperature stresses was greatly enhanced by the overexpression of FvMYB44. When subjected to salt and temperature stress, transgenic plants showed higher proline and chlorophyll concentrations and higher superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities than wild-type (WT) and unloaded line (UL) of A. thaliana. In contrast, WT and UL lines had higher malondialdehyde (MDA) content and reactive oxygen species ROS (O-2(-) and H2O2) content. These findings suggest that FvMYB44 may perform a role in controlling the response of A. thaliana to cold and salt stress.
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