MdKCS2 increased plant drought resistance by regulating wax biosynthesis

编号 040031603

推送时间 20211108

研究领域 森林培育 

年份 2021 

类型 期刊 

语种 英语

标题 MdKCS2 increased plant drought resistance by regulating wax biosynthesis

来源期刊 Plant cell reports

期 第316期

发表时间 20210901

关键词 Apple;  KCS2;  Fatty acids;  Wax;  Drought; 

摘要 The content and composition of epidermal wax in plants are affected by genetic and environmental factors. The KCS gene encodes the β-ketoalionyl-CoA synthetase, which is a rate-limiting enzyme in the synthesis of very-long-chain fatty acids (VLCFAs). In this study, we identified the MdKCS2 gene from apple as a homolog of Arabidopsis AtKCS2. The KCS protein is localized on the endoplasmic reticulum membrane. MdKCS2 exhibited the highest expression in apple pericarp, and was induced by abiotic stresses, such as drought and salt. Transgenic analysis indicated that the MdKCS2 improved the resistance to abiotic stress in apple calli. Ectopic expression of MdKCS2 in Arabidopsis increased the content of wax in leaves and stems, changed the permeability of cuticle of leaves, and enhanced plant drought resistance.

服务人员 孙小满

服务院士 尹伟伦

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