Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities

ABSTRACT Biotic factors that influence the temporal stability of microbial community functioning are an emerging research focus for the control of natural and engineered systems. The discovery of common features within community ensembles that differ in functional stability over time is a starting p...

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Main Authors: Eric R. Moore, Dennis Suazo, Joany Babilonia, Kyana N. Montoya, La Verne Gallegos-Graves, Sanna Sevanto, John Dunbar, Michaeline B. N. Albright
Format: Article
Language:English
Published: American Society for Microbiology 2023-06-01
Series:mSystems
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/msystems.01220-22
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author Eric R. Moore
Dennis Suazo
Joany Babilonia
Kyana N. Montoya
La Verne Gallegos-Graves
Sanna Sevanto
John Dunbar
Michaeline B. N. Albright
author_facet Eric R. Moore
Dennis Suazo
Joany Babilonia
Kyana N. Montoya
La Verne Gallegos-Graves
Sanna Sevanto
John Dunbar
Michaeline B. N. Albright
author_sort Eric R. Moore
collection DOAJ
description ABSTRACT Biotic factors that influence the temporal stability of microbial community functioning are an emerging research focus for the control of natural and engineered systems. The discovery of common features within community ensembles that differ in functional stability over time is a starting point to explore biotic factors. We serially propagated a suite of soil microbial communities through five generations of 28-day microcosm incubations to examine microbial community compositional and functional stability during plant litter decomposition. Using dissolved organic carbon (DOC) abundance as a target function, we hypothesized that microbial diversity, compositional stability, and associated changes in interactions would explain the relative stability of the ecosystem function between generations. Communities with initially high DOC abundance tended to converge towards a “low DOC” phenotype within two generations, but across all microcosms, functional stability between generations was highly variable. By splitting communities into two cohorts based on their relative DOC functional stability, we found that compositional shifts, diversity, and interaction network complexity were associated with the stability of DOC abundance between generations. Further, our results showed that legacy effects were important in determining compositional and functional outcomes, and we identified taxa associated with high DOC abundance. In the context of litter decomposition, achieving functionally stable communities is required to utilize soil microbiomes to increase DOC abundance and long-term terrestrial DOC sequestration as one solution to reduce atmospheric carbon dioxide concentrations. Identifying factors that stabilize function for a community of interest may improve the success of microbiome engineering applications. IMPORTANCE Microbial community functioning can be highly dynamic over time. Identifying and understanding biotic factors that control functional stability is of significant interest for natural and engineered communities alike. Using plant litter–decomposing communities as a model system, this study examined the stability of ecosystem function over time following repeated community transfers. By identifying microbial community features that are associated with stable ecosystem functions, microbial communities can be manipulated in ways that promote the consistency and reliability of the desired function, improving outcomes and increasing the utility of microorganisms.
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spelling doaj.art-82139c8c4993477599620880fbedecb42023-06-29T13:00:40ZengAmerican Society for MicrobiologymSystems2379-50772023-06-018310.1128/msystems.01220-22Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communitiesEric R. Moore0Dennis Suazo1Joany Babilonia2Kyana N. Montoya3La Verne Gallegos-Graves4Sanna Sevanto5John Dunbar6Michaeline B. N. Albright7Bioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USABioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USABioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USABioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USABioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USAEarth and Environmental Sciences Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USABioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USABioscience Division, Los Alamos National Laboratory , Los Alamos, New Mexico, USAABSTRACT Biotic factors that influence the temporal stability of microbial community functioning are an emerging research focus for the control of natural and engineered systems. The discovery of common features within community ensembles that differ in functional stability over time is a starting point to explore biotic factors. We serially propagated a suite of soil microbial communities through five generations of 28-day microcosm incubations to examine microbial community compositional and functional stability during plant litter decomposition. Using dissolved organic carbon (DOC) abundance as a target function, we hypothesized that microbial diversity, compositional stability, and associated changes in interactions would explain the relative stability of the ecosystem function between generations. Communities with initially high DOC abundance tended to converge towards a “low DOC” phenotype within two generations, but across all microcosms, functional stability between generations was highly variable. By splitting communities into two cohorts based on their relative DOC functional stability, we found that compositional shifts, diversity, and interaction network complexity were associated with the stability of DOC abundance between generations. Further, our results showed that legacy effects were important in determining compositional and functional outcomes, and we identified taxa associated with high DOC abundance. In the context of litter decomposition, achieving functionally stable communities is required to utilize soil microbiomes to increase DOC abundance and long-term terrestrial DOC sequestration as one solution to reduce atmospheric carbon dioxide concentrations. Identifying factors that stabilize function for a community of interest may improve the success of microbiome engineering applications. IMPORTANCE Microbial community functioning can be highly dynamic over time. Identifying and understanding biotic factors that control functional stability is of significant interest for natural and engineered communities alike. Using plant litter–decomposing communities as a model system, this study examined the stability of ecosystem function over time following repeated community transfers. By identifying microbial community features that are associated with stable ecosystem functions, microbial communities can be manipulated in ways that promote the consistency and reliability of the desired function, improving outcomes and increasing the utility of microorganisms.https://journals.asm.org/doi/10.1128/msystems.01220-22bacteriacarbon cyclingfungimicrobial interactionsmicrobiome engineeringserial propagations
spellingShingle Eric R. Moore
Dennis Suazo
Joany Babilonia
Kyana N. Montoya
La Verne Gallegos-Graves
Sanna Sevanto
John Dunbar
Michaeline B. N. Albright
Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities
mSystems
bacteria
carbon cycling
fungi
microbial interactions
microbiome engineering
serial propagations
title Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities
title_full Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities
title_fullStr Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities
title_full_unstemmed Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities
title_short Drivers of stability and transience in composition-functioning links during serial propagation of litter-decomposing microbial communities
title_sort drivers of stability and transience in composition functioning links during serial propagation of litter decomposing microbial communities
topic bacteria
carbon cycling
fungi
microbial interactions
microbiome engineering
serial propagations
url https://journals.asm.org/doi/10.1128/msystems.01220-22
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