Tomato calmodulin-like protein SlCML37 is a calcium (Ca2+) sensor that interacts with proteasome maturation factor SlUMP1 and plays a role in tomato fruit chilling stress tolerance
文献类型： 外文期刊
作者： Tang, Mingfeng 1 ; Xu, Chan 1 ; Cao, Haohao 1 ; Shi, Yuan 1 ; Chen, Jing 1 ; Chai, Yong 3 ; Li, Zhengguo 1 ;
作者机构： 1.Chongqing Univ, Sch Life Sci, Key Lab Plant Hormones & Dev Regulat Chongqing, Chongqing 401331, Peoples R China
2.Chongqing Univ, Inst Adv Interdisciplinary Studies, Ctr Plant Funct Genom, Chongqing 401331, Peoples R China
3.Chongqing Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Chongqing 401329, Peoples R China
关键词： SlCML37; SlUMP1; Overexpression; Chilling stress; Tomato fruit
期刊名称：JOURNAL OF PLANT PHYSIOLOGY （ 影响因子：3.686； 五年影响因子：4.352 ）
ISSN： 0176-1617
年卷期： 2021 年 258 卷
页码：
收录情况： SCI
摘要： Calmodulin-like proteins (CMLs), as well as their targets, play significant roles in various key developmental and stress responses in the plant. In tomato (Solanum lycopersicum), there are at least 52 CML genes in its genome. However, most of their functions are not well known, especially in response to cold stress. Here, we investigated SlCML37 biochemical and structural characteristics, including a typical a-helical secondary structure and exposing its hydrophobic regions after binding to Ca2+. Then we certificated that SlCML37 protein could physically interact with SlUMP1 by using yeast two-hybrid, bimolecular florescence complementation (BiFC) and GST pull-down assays. Further analysis showed that SlCML37-transgenic tomato fruit conferred significantly improved tolerance to chilling stress. This study indicates a possible role of calmodulin-like protein-mediated proteasome assemble in the regulation of plant cold response.
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