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- Title
Effects of selected root exudates components on soil Pseudomonas spp. community structures and abundances.
- Authors
Tan, S. C.; Liu, J. Y.; u Rahman, M. Khashi; Ma, C. L.; Wu, F. Z.; Zhou, X. G.
- Abstract
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 μg 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.
- Subjects
PLANT exudates; PSEUDOMONAS; GLUTAMIC acid; ACID soils; SOILS; SOIL microbial ecology
- Publication
Allelopathy Journal, 2020, Vol 50, Issue 1, p83
- ISSN
0971-4693
- Publication type
Article
- DOI
10.26651/allelo.j/2020-50-1-1276