Grape VvMAPK9 positively regulates salt tolerance in Arabidopsis and grape callus through regulating the antioxidative system
文献类型： 外文期刊
作者： Ji, Xiaomin 1 ; Sui, Changcheng 1 ; Yu, Yanyan 1 ; Liu, Xueli 3 ; Li, Bo 4 ; Sun, Qinghua 1 ;
作者机构： 1.Shandong Agr Univ, Coll Life Sci, State Key Lab Crop Biol, Tai An, Shandong, Peoples R China
2.Shandong Med Technician Coll, Dept Biol Engn, Tai An, Shandong, Peoples R China
3.Taishan Res Inst Sci & Technol, Tai An, Shandong, Peoples R China
4.Shandong Acad Agr Sci, Shandong Acad Grape, Tai An, Shandong, Peoples R China
关键词： Grape; MAPK; Salt stress; Antioxidant
期刊名称：PLANT CELL TISSUE AND ORGAN CULTURE （ 影响因子：2.711； 五年影响因子：2.73 ）
ISSN： 0167-6857
年卷期： 2022 年 148 卷 3 期
页码：
收录情况： SCI
摘要： Mitogen-activated protein kinase pathways are involved in plant resistance to a variety of adverse environmental processes, and their downstream component MAPKs play an important role in this process. However, the function of MAPKs in abiotic stresses is still far from being clear in grape (Vitisvinifera L.). Here, we isolated a novel group B MAPK gene (VvMAPK9) from grape, which is induced by different abiotic stresses such as salt, drought and high temperature (42 degrees C). Overexpressing VvMAPK9 in Arabidopsisthaliana significantly enhanced the tolerance to salt stress. Compared with wild type plants, the transgenic lines exhibited higher germination rate and longer root length as well better growth status under salt stress. In addition, overexpression of VvMAPK9 in grape callus also increased the salt stress tolerance and enhanced the callus's ability to scavenge reactive oxygen species (ROS), which correlated with higher activity of ROS-related antioxidant enzymes. These results indicate that VvMAPK9 may positively regulate salt stress by regulating the antioxidative system. Key message Grape VvMAPK9 positively regulates salt tolerance in Arabidopsis and grape callus through regulating the antioxidative system
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