Effect of bacteriaphage and exopolysaccharide on root colonization and rhizosphere competence by Pseudomonas fluorescens

文献类型： 外文期刊

第一作者： Nian, Hong Juan

作者： Nian, Hong Juan;Zhang, Jie;Liu, Shuo;Song, Fu Ping;Nian, Hong Juan

作者机构：

关键词： Bacteriophage;Exopolysaccharide;Pseudomonas fluorescens;Rhizosphere competence;Root colonization

期刊名称：ANNALS OF MICROBIOLOGY （ 影响因子：2.112； 五年影响因子：2.151 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Pseudomonas fluorescens TC222 is a biocontrol agent. In this study, we focused on the influence of bspA encoding bacteriophage signal peptide protein and epsB encoding a putative Mig-14 family protein on the rhizosphere colonization and competence. After inoculation with each of strains individually, the number of each mutated strain was much lower than that of the wild-type strain. Both mutants inoculated with the wild-type strain at a ratio of 1:1 were outcompeted by the wild-type strain. Furthermore, both mutants showed a reduced biocontrol activity to Rhizoctonia solani and Gaeumannomyces graminis. To our knowledge, this is the first report that bspA and epsB are involved in root colonization and rhizosphere competence by P. fluorescens.

分类号： Q93

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