Overexpression of NtEXPA7 promotes seedling growth and resistance to root-knot nematode in tobacco

文献类型： 外文期刊

第一作者： Yang, Cheng

作者： Yang, Cheng;Yu, Haoqiang;Li, Wanchen;Jiang, Lianqiang;Wang, Yong;Liu, Guo;Leng, Zhengmei;Yuan, Shuai;Du, Juan;Jiang, Qipeng;Tan, Yanni;Yang, Fang;Ji, Hongli

作者机构： Sichuan Agr Univ, Maize Res Inst, Chengdu 611130, Peoples R China;Sichuan Prov Tobacco Co Liangshanzhou Co, Liangshanzhou 615000, Peoples R China;Sichuan Univ, Coll Life Sci, Key Lab Bioresource & Ecoenvironm, Minist Educ, Chengdu 610064, Peoples R China;Southwest Univ, Coll Plant Protect, Chongqing 400715, Peoples R China;Sichuan Acad Agr Sci, Inst Plant Protect, Chengdu 610066, Peoples R China

关键词： Expansin; Root-knot nematode; Cell wall; Plant growth; Tobacco

期刊名称：BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS （ 2022影响因子：3.1； 五年影响因子：3.2 ）

ISSN： 0006-291X

年卷期： 2024 年 720 卷

页码：

收录情况： SCI

摘要： Root-knot nematode (RKN) is one of the most damaging plant pathogen in the world. They exhibit a wide host range and cause serious crop losses. The cell wall, encasing every plant cell, plays a crucial role in defending of RKN invasion. Expansins are a group of cell wall proteins inducing cell wall loosening and extensibility. They are widely involved in the regulation of plant growth and the response to biotic and abiotic stresses. In this study, we have characterized the biological function of tobacco (Nicotiana tabacum) NtEXPA7, the homologue of Solyc08g080060.2 (SlEXPA18), of which the transcription level was significantly reduced in susceptible tomato upon RKN infection. The expression of NtEXPA7 was up-regulated after inoculation of RKNs. The NtEXPA7 protein resided in the cell wall. Overexpression of NtEXPA7 promoted the seedling growth of transgenic tobacco. Meanwhile the increased expression of NtEXPA7 was beneficial to enhance the resistance against RKNs. This study expands the understanding of biological role of expansin in coordinate plant growth and disease resistance.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序