Isolation and characterization of bacteria from the rhizosphere and bulk soil of Stellera chamaejasme L.

文献类型： 外文期刊

第一作者： Cui, Haiyan

作者： Cui, Haiyan;Yang, Xiaoyan;Jin, Hui;Yan, Zhiqiang;Li, Xiuzhuang;Qin, Bo;Cui, Haiyan;Yang, Xiaoyan;Jin, Hui;Yan, Zhiqiang;Li, Xiuzhuang;Qin, Bo;Cui, Haiyan;Lu, Dengxue;Jin, Hui;Chen, Jixiang

作者机构：

关键词： culturable bacterial community;Stellera chamaejasme L.;plant growth promotion;rhizosphere and bulk soil

期刊名称：CANADIAN JOURNAL OF MICROBIOLOGY （ 影响因子：2.419； 五年影响因子：2.35 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This study is the first to describe the composition and characteristics of culturable bacterial isolates from the rhizosphere and bulk soil of the medicinal plant Stellera chamaejasme L. at different growth stages. Using a cultivation-dependent approach, a total of 148 isolates showing different phenotypic properties were obtained from the rhizosphere and bulk soil. Firmicutes and Actinobacteria were the major bacterial groups in both the rhizosphere and bulk soil at all 4 growth stages of S. chamaejasme. The diversity of the bacterial community in the rhizosphere was higher than that in bulk soil in flowering and fruiting stages. The abundance of bacterial communities in the rhizosphere changed with the growth stages and had a major shift at the fruiting stage. Dynamic changes of bacterial abundance and many bacterial groups in the rhizosphere were similar to those in bulk soil. Furthermore, most bacterial isolates exhibited single or multiple biochemical activities associated with S. chamaejasme growth, which revealed that bacteria with multiple physiological functions were abundant and widespread in the rhizosphere and bulk soil. These results are essential (i) for understanding the ecological roles of bacteria in the rhizosphere and bulk soil and (ii) as a foundation for further evaluating their efficacy as effective S. chamaejasme growth-promoting rhizobacteria.

分类号： Q93

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