Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes

Salinity fluctuations constitute a well-known high stress factor strongly shaping global biological distributions and abundances. However, there is a knowledge gap regarding how increasing saline stress affects microbial biological interactions. We applied the combination of a probabilistic method f...

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Detalles Bibliográficos
Autores: Menéndez-Serra, Mateu, Ontiveros, Vicente J., Barberán, Albert, Casamayor, Emilio O.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/279543
Acceso en línea:http://hdl.handle.net/10261/279543
Access Level:acceso abierto
Palabra clave:Salt gradient
Aquatic microbiome
Stress gradient hypothesis
Microbial interactions
Network analysis
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spelling Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakesMenéndez-Serra, MateuOntiveros, Vicente J.Barberán, AlbertCasamayor, Emilio O.Salt gradientAquatic microbiomeStress gradient hypothesisMicrobial interactionsNetwork analysisSalinity fluctuations constitute a well-known high stress factor strongly shaping global biological distributions and abundances. However, there is a knowledge gap regarding how increasing saline stress affects microbial biological interactions. We applied the combination of a probabilistic method for estimating significant co-occurrences/exclusions and a conceptual framework for filtering out associations potentially linked to environmental and/or spatial factors, in a series of connected ephemeral (hyper) saline lakes. We carried out a network analysis over the full aquatic microbiome –bacteria, eukarya and archaea– under severe salinity fluctuations. Most of the observed co-occurrences/exclusions were potentially explained by environmental niche and/or dispersal limitation. Co-occurrences assigned to potential biological interactions remained stable, suggesting that the salt gradient was not promoting interspecific facilitation processes. Conversely, co-exclusions assigned to potential biological interactions decreased along the gradient both in number and network complexity, pointing to a decrease of interspecies competition as salinity increased. Overall, higher saline stress reduced microbial co– exclusions while co–occurrences remained stable suggesting decreasing competition coupled with lack of stress-gradient promoted facilitation in the microbiome of ephemeral saline lakes.Peer reviewedJohn Wiley & SonsConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/279543reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1002/ecy.3834Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2795432026-05-22T06:33:51Z
dc.title.none.fl_str_mv Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
title Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
spellingShingle Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
Menéndez-Serra, Mateu
Salt gradient
Aquatic microbiome
Stress gradient hypothesis
Microbial interactions
Network analysis
title_short Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
title_full Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
title_fullStr Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
title_full_unstemmed Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
title_sort Absence of stress-promoted facilitation coupled with a competition decrease in the microbiome of ephemeral saline lakes
dc.creator.none.fl_str_mv Menéndez-Serra, Mateu
Ontiveros, Vicente J.
Barberán, Albert
Casamayor, Emilio O.
author Menéndez-Serra, Mateu
author_facet Menéndez-Serra, Mateu
Ontiveros, Vicente J.
Barberán, Albert
Casamayor, Emilio O.
author_role author
author2 Ontiveros, Vicente J.
Barberán, Albert
Casamayor, Emilio O.
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Salt gradient
Aquatic microbiome
Stress gradient hypothesis
Microbial interactions
Network analysis
topic Salt gradient
Aquatic microbiome
Stress gradient hypothesis
Microbial interactions
Network analysis
description Salinity fluctuations constitute a well-known high stress factor strongly shaping global biological distributions and abundances. However, there is a knowledge gap regarding how increasing saline stress affects microbial biological interactions. We applied the combination of a probabilistic method for estimating significant co-occurrences/exclusions and a conceptual framework for filtering out associations potentially linked to environmental and/or spatial factors, in a series of connected ephemeral (hyper) saline lakes. We carried out a network analysis over the full aquatic microbiome –bacteria, eukarya and archaea– under severe salinity fluctuations. Most of the observed co-occurrences/exclusions were potentially explained by environmental niche and/or dispersal limitation. Co-occurrences assigned to potential biological interactions remained stable, suggesting that the salt gradient was not promoting interspecific facilitation processes. Conversely, co-exclusions assigned to potential biological interactions decreased along the gradient both in number and network complexity, pointing to a decrease of interspecies competition as salinity increased. Overall, higher saline stress reduced microbial co– exclusions while co–occurrences remained stable suggesting decreasing competition coupled with lack of stress-gradient promoted facilitation in the microbiome of ephemeral saline lakes.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/279543
url http://hdl.handle.net/10261/279543
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1002/ecy.3834
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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