Effects of selected root exudates components on soil Pseudomonas spp. community structures and abundances

文献类型： 外文期刊

第一作者： Tan, S. C.

作者： Tan, S. C.;Liu, J. Y.;Rahman, M. Khashi u;Ma, C. L.;Wu, F. Z.;Zhou, X. G.;Tan, S. C.;Liu, J. Y.;Rahman, M. Khashi u;Ma, C. L.;Wu, F. Z.;Zhou, X. G.;Liu, J. Y.

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关键词： Amino acid; microcosm experiment; organic acid; Pseudomonas spp.; sugar

期刊名称：ALLELOPATHY JOURNAL （ 影响因子：0.962； 五年影响因子：0.99 ）

ISSN： 0971-4693

年卷期： 2020 年 50 卷 1 期

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收录情况： SCI

摘要： Plant-microbes interactions in soil are mainly driven by plant root exudates. However, how different compounds present in root exudates can affect the specific soil microbial communities has not been well studied yet. We studied the glucose, succinic, p-hydroxybenzoic, p-coumaric and glutamic acids on soil Pseudomonas spp. communality in a microcosm experiment. Soils were treated with these selected root exudates (20 mu g carbon/g soil), and Pseudomonas spp. community structure and abundance were estimated by PCR-denaturing gradient gel electrophoresis and quantitative PCR, respectively. All treatments increased the abundance of Pseudomonas spp. community and this increase was highest in the glutamic acid treatment. Moreover, all treatments changed the Pseudomonas spp. community structure. All treatments, except glucose, decreased the community diversity of Pseudomonas spp. Our findings suggested that various organic compounds found in plant root exudates differed in their abilities to influence the soil Pseudomonas spp. community.

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