Proteomic comparison reveals the contribution of chloroplast to salt tolerance of a wheat introgression line
文献类型： 外文期刊
作者： Xu, Wenjing 1 ; Lv, Hongjun 1 ; Zhao, Mingming 1 ; Li, Yongchao 1 ; Qi, Yueying 1 ; Peng, Zhenying 2 ; Xia, Guangmin 1 ;
作者机构： 1.Shandong Univ, Key Lab Plant Cell Engn & Germplasm Innovat, Minist Educ, Sch Life Sci, 27 Shandanan Rd, Jinan 250100, Shandong, Peoples R China
2.Shandong
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2016 年 6 卷
页码：
收录情况： SCI
摘要： We previously bred a salt tolerant wheat cv. SR3 with bread wheat cv. JN177 as the parent via asymmetric somatic hybridization, and found that the tolerance is partially attributed to the superior photosynthesis capacity. Here, we compared the proteomes of two cultivars to unravel the basis of superior photosynthesis capacity. In the maps of two dimensional difference gel electrophoresis (2D-DIGE), there were 26 differentially expressed proteins (DEPs), including 18 cultivar-based and 8 stress-responsive ones. 21 of 26 DEPs were identified and classified into four categories, including photosynthesis, photosynthesis system stability, linolenic acid metabolism, and protein synthesis in chloroplast. The chloroplast localization of some DEPs confirmed that the identified DEPs function in the chloroplast. The overexpression of a DEP enhanced salt tolerance in Arabidopsis thaliana. In line with these data, it is concluded that the contribution of chloroplast to high salinity tolerance of wheat cv. SR3 appears to include higher photosynthesis efficiency by promoting system protection and ROS clearance, stronger production of phytohormone JA by enhancing metabolism activity, and modulating the in chloroplast synthesis of proteins.
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