您好,欢迎访问江苏省农业科学院 机构知识库!

Colonization Mechanism of Endophytic Enterobacter cloacae TMX-6 on Rice Seedlings Mediated by Organic Acids Exudated from Roots

文献类型: 外文期刊

作者: Wang, Pei 1 ; Ma, Liya 2 ; Ge, Jing 2 ; Feng, Fayun 2 ; Wan, Qun 2 ; Zeng, Dongqiang 1 ; Yu, Xiangyang 1 ;

作者机构: 1.Guangxi Univ, Coll Agr, Natl Demonstrat Ctr Expt Plant Sci Educ, Guangxi Key Lab Agrioenvironm & Agr Prod Safety, Nanning 530004, Guangxi, Peoples R China

2.Jiangsu Acad Agr Sci, Jiangsu Key Lab Food Qual & Safety, State Key Lab Cultivat Base, Minist Sci & Technol, Nanjing 210014, Jiangsu, Peoples R China

关键词: root exudates; rhizosphere directional regulation; thiamethoxam; chemotaxis; biofilm formation

期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:6.1; 五年影响因子:6.3 )

ISSN: 0021-8561

年卷期: 2023 年 71 卷 12 期

页码:

收录情况: SCI

摘要: Small molecular organic acids (SMOAs) in root exudates are critical for plant-microbe interaction, especially under environmental stresses. However, the dominant organic acids driving the process and promoting the colonization are unclear. Here, using a target metabolomics, 20 main SMOAs of rice root exudates were identified and analyzed in control and 10 mg/L thiamethoxam-treated groups. The composition of these SMOAs differed significantly between the two treatments. Among which, malic acid, citric acid, succinic acid, and proline induced a chemotactic response, swimming ability, and biofilm formation of Enterobacter cloacae TMX-6 in a dose-dependent manner. The maximal chemotactic response of TMX-6 was induced by proline at 10 mg/L, and a strong chemotactic response was even observed at 0.01 mg/L. The recruitment assay confirmed that the addition of these four compounds promoted the colonization of TMX-6. The results provide insight for directional regulation of plant-microbe interactions for beneficial outcomes.

  • 相关文献
作者其他论文 更多>>