您好，欢迎访问天津市农业科学院 机构知识库！
天津市农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Sucrose triggers a novel signaling cascade promoting Bacillus subtilis rhizosphere colonization

文献类型： 外文期刊

作者： Tian, Tao 1 ; Sun, Bingbing 1 ; Shi, Haowen 1 ; Gao, Tantan 2 ; He, Yinghao 3 ; Li, Yan 2 ; Liu, Yixue 1 ; Li, Xuexian 4 ; Z 1 ;

作者机构： 1.Tianjin Acad Agr Sci, Inst Plant Protect, Tianjin, Peoples R China

2.China Agr Univ, Dept Plant Pathol, Beijing, Peoples R China

3.Northeastern Univ, Dept Biol, Boston, MA 02115 USA

4.China Agr Univ, Dept Plant Nutr, Beijing, Peoples R China

5.Chinese Acad Agr Sci, Inst Plant Protect, Beijing, Peoples R China

期刊名称：ISME JOURNAL （ 影响因子：9.18； 五年影响因子：10.712 ）

ISSN： 1751-7362

年卷期：

页码：

收录情况： SCI

摘要： Beneficial rhizobacteria promote plant growth and protect plants against phytopathogens. Effective colonization on plant roots is critical for the rhizobacteria to exert beneficial activities. How bacteria migrate swiftly in the soil of semisolid or solid nature remains unclear. Here we report that sucrose, a disaccharide ubiquitously deployed by photosynthetic plants for fixed carbon transport and storage, and abundantly secreted from plant roots, promotes solid surface motility (SSM) and root colonization by Bacillus subtilis through a previously uncharacterized mechanism. Sucrose induces robust SSM by triggering a signaling cascade, first through extracellular synthesis of polymeric levan, which in turn stimulates strong production of surfactin and hyper-flagellation of the cells. B. subtilis poorly colonizes the roots of Arabidopsis thaliana mutants deficient in root-exudation of sucrose, while exogenously added sucrose selectively shapes the rhizomicrobiome associated with the tomato plant roots, promoting specifically bacilli and pseudomonad. We propose that sucrose activates a signaling cascade to trigger SSM and promote rhizosphere colonization by B. subtilis. Our findings also suggest a practicable approach to boost prevalence of beneficial Bacillus species in plant protection.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：天津市农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台