Effects of selected root exudates components on soil Pseudomonas spp. community structures and abundances
文献类型： 外文期刊
作者： Tan, S. C. 1 ; Liu, J. Y. 1 ; Rahman, M. Khashi u 1 ; Ma, C. L. 1 ; Wu, F. Z. 1 ; Zhou, X. G. 1 ;
作者机构： 1.Northeast Agr Univ, Key Lab Biol & Genet Improvement Hort Crops North, Minist Agr & Rural Affairs, Harbin, Peoples R China
2.Northeast Agr Univ, Dept Hort, Harbin, Peoples R China
3.Jilin Acad Agr Sci, Jilin, Jilin, Peoples R China
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
页码：
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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