Ulva prolifera polysaccharide enhances the root colonisation by Bacillus amyloliquefaciens strain Cas02
文献类型: 外文期刊
第一作者: Chu, Depeng
作者: Chu, Depeng;Zheng, Yanfen;You, Xiangwei;Jing, Changliang;Li, Yiqiang;Yuan, Yuan;Wang, Xiaoqiang;Liang, Jinchang;Fan, Jiajun;Clark, James;Peng, Lijuan;Wang, Rui
作者机构:
关键词: Root colonisation; Bacillus amyloliquefaciens; Ulva prolifera polysaccharide; Biofilm; Rhizosphere microbiome
期刊名称:CARBOHYDRATE POLYMERS ( 影响因子:10.723; 五年影响因子:9.964 )
ISSN: 0144-8617
年卷期: 2023 年 299 卷
页码:
收录情况: SCI
摘要: The application of biocontrol agent is important for the sustainable development of agriculture. Unsuccessful or limited colonisation by plant growth-promoting rhizobacteria (PGPR) has become an important constraint factor for their commercial application. Here, we report that Ulva prolifera polysaccharide (UPP) promotes root colonisation by Bacillus amyloliquefaciens strain Cas02. UPP serves as an environmental signal for bacterial biofilm formation and its glucose residue is used as a carbon source for the synthesis of the exopolysaccharides and polygamma-glutamate present in biofilm matrix. Greenhouse experiments demonstrated that UPP could effectively enhance the root colonisation by Cas02 in both the bacterial population and survival time under natural semiarid soil conditions. Furthermore, the microbiome analysis also indicated the promoted colonisation by Cas02, as well as the improved bacterial rhizosphere community structure, after combined treatment of UPP and Cas02. This study provides a practical approach to improve the biocontrol agent with seaweed polysaccharides.
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