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

  1. Tan, S.C. 1
  2. Liu, J.Y. 12
  3. Khashi u Rahman, M. 1
  4. Ma, C.L. 1
  5. Wu, F.Z. 1
  6. Zhou, X.G. 1
  1. 1 Northeast Agricultural University
    info

    Northeast Agricultural University

    Harbin, China

    ROR https://ror.org/0515nd386

  2. 2 Jilin Academy of Agricultural Sciences
    info

    Jilin Academy of Agricultural Sciences

    Changchun, China

    ROR https://ror.org/022mwqy43

Revista:
Allelopathy Journal

ISSN: 0971-4693,  0973-5046

Año de publicación: 2020

Volumen: 50

Número: 1

Páginas: 85-94

Tipo: Artículo

DOI: 10.26651/ALLELO.J/2020-50-1-1276 GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Allelopathy Journal

Resumen

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 microbialcommunities 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 microcosmexperiment. Soils were treated with these selected root exudates (20 μg carbon/g soil), andPseudomonas spp. community structure and abundance were estimated by PCR-denaturinggradient gel electrophoresis and quantitative PCR, respectively. All treatments increased theabundance of Pseudomonas spp. community and this increase was highest in the glutamic acidtreatment. Moreover, all treatments changed the Pseudomonas spp. community structure. Alltreatments, except glucose, decreased the community diversity of Pseudomonas spp. Ourfindings suggested that various organic compounds found in plant root exudates differed in theirabilities to influence the soil Pseudomonas spp. community.

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