Google Search Baidu Search
(多个关键字请用"空格"格开)
您当前的位置:首页 > 科研成果 > 论文
论文

Trehalose phosphate synthase 5‐dependent trehalose metabolism modulates basal defense responses in Arabidopsis thaliana 

 
论文编号:
作者: Wang XL
刊物名称: Journal of Integrative Plant Biology
所属学科:
论文题目英文: Trehalose phosphate synthase 5‐dependent trehalose metabolism modulates basal defense responses in Arabidopsis thaliana
年: Apr 2019
卷: 61
期: 4
页: 509-527
联系作者: Yu DQ
收录类别:
影响因子: 3.824
参与作者:
备注:
摘要:
Despite the recent discovery that trehalose synthesis is important for plant development and abiotic stress tolerance, the effects of trehalose on biotic stress responses remain relatively unknown. In this study, we demonstrate that TREHALOSE PHOSPHATE SYNTHASE 5 (TPS5)dependent trehalose metabolism regulates Arabidopsis thaliana defenses against pathogens (necrotrophic Botrytis cinerea and biotrophic Pseudomonas syringae). Pathogen infection increased trehalose levels and upregulated TPS5 expression. Application of exogenous trehalose significantly improved plant defenses against B. cinerea, but increased the susceptibility of plants to P. syringae. We demonstrate that elevated trehalose biosynthesis, in transgenic plants overexpressing TPS5, also increased the susceptibility to P. syringae, but decreased the disease symptoms caused by B. cinerea. The knockout of TPS5 prevented the accumulation of trehalose and enhanced defense responses against P. syringae. Additionally, we observed that a TPS5interacting protein (multiprotein bridging factor 1c) was required for induced expression of TPS5 during pathogen infections. Furthermore, we show that trehalose promotes P. syringae growth and disease development, via a mechanism involving suppression of the plant defense gene, PathogenesisRelated Protein 1. These findings provide insight into the function of TPS5dependent trehalose metabolism in plant basal defense responses.
论文下载: 下载地址
   

关闭窗口

返回首页

数字标本.png
东南亚中心2.jpg
前往中国植物园联盟网站
W020160606696316538360.jpg
屏幕快照 2018-07-04 09.56.59.png