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Unraveling negative biotic interactions determining soil microbial community assembly and functioning

Romdhane, Sana and Spor, Ayme and Aubert, Julie and Bru, David and Breuil, Marie-Christine and Hallin, Sara and Mounier, Arnaud and Ouadah, Sarah and Tsiknia, Myrto and Philippot, Laurent (2022). Unraveling negative biotic interactions determining soil microbial community assembly and functioning. ISME Journal. 16 , 296-306
[Research article]

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Abstract

Microbial communities play important roles in all ecosystems and yet a comprehensive understanding of the ecological processes governing the assembly of these communities is missing. To address the role of biotic interactions between microorganisms in assembly and for functioning of the soil microbiota, we used a top-down manipulation approach based on the removal of various populations in a natural soil microbial community. We hypothesized that removal of certain microbial groups will strongly affect the relative fitness of many others, therefore unraveling the contribution of biotic interactions in shaping the soil microbiome. Here we show that 39% of the dominant bacterial taxa across treatments were subjected to competitive interactions during soil recolonization, highlighting the importance of biotic interactions in the assembly of microbial communities in soil. Moreover, our approach allowed the identification of microbial community assembly rule as exemplified by the competitive exclusion between members of Bacillales and Proteobacteriales. Modified biotic interactions resulted in greater changes in activities related to N- than to C-cycling. Our approach can provide a new and promising avenue to study microbial interactions in complex ecosystems as well as the links between microbial community composition and ecosystem function.

Authors/Creators:Romdhane, Sana and Spor, Ayme and Aubert, Julie and Bru, David and Breuil, Marie-Christine and Hallin, Sara and Mounier, Arnaud and Ouadah, Sarah and Tsiknia, Myrto and Philippot, Laurent
Title:Unraveling negative biotic interactions determining soil microbial community assembly and functioning
Series Name/Journal:ISME Journal
Year of publishing :2022
Volume:16
Page range:296-306
Number of Pages:11
Publisher:SPRINGERNATURE
ISSN:1751-7362
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
URN:NBN:urn:nbn:se:slu:epsilon-p-113296
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113296
Additional ID:
Type of IDID
DOI10.1038/s41396-021-01076-9
Web of Science (WoS)000678489700002
ID Code:26628
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Forest Mycology and Plant Pathology
(S) > Dept. of Forest Mycology and Plant Pathology
Deposited By: SLUpub Connector
Deposited On:28 Dec 2021 04:25
Metadata Last Modified:28 Dec 2021 06:01

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