首页|Arbuscular mycorrhiza fungi increase soil denitrifier abundance relating to vegetation community
Arbuscular mycorrhiza fungi increase soil denitrifier abundance relating to vegetation community
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NSTL
Elsevier
? 2021 Elsevier B.V.Denitrification by microorganisms in soil regulates ecosystem nitrogen availability and cycling. Although arbuscular mycorrhiza fungi (AMF) are best known as the key connectors between plant and microorganisms in below-ground soil, however, less knowledge is available about the interactive effects of AMF and vegetation community traits on soil denitrifiers. In this study, we manipulated experimental pots with or without AMF inoculation (AMF+ and AMF? treatments) under three plant richness levels and 27 different plant community compositions. Our results provided evidence that inoculation of AMF significantly increased the abundances of nirS-, nirK- and nosZ-type denitrifiers as revealed by quantitative PCR (qPCR), which inferred a positive role of AMF in N-cycling microorganisms. Plant community traits, including richness, community composition, biomass and species, were less important in influencing the abundances of soil denitrifiers, and no significant interactive effect was detected between AMF inoculation and plant richness or plant community compositions, indicating a weak direct relationship between plants and soil denitrifiers. Our study provided comprehensive insights into the roles of AMF-plant associate bio-system in driving the variation of soil denitrifiers.
Arbuscular mycorrhiza fungiNirKNirSNosZSoil denitrifiersVegetation community
Wang J.、Jing Z.、Ge Y.、He J.-Z.、Xu Y.
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School of Life Sciences Taizhou University
State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences
School of Geographical Sciences Fujian Normal University
Hebei Key Laboratory of Mining Development and Security Technology Hebei Industrial Technology Institute of Mine Ecological Remediation North China University of Science and Technology
NSTL
Elsevier
