Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)

We studied the 16S and 18S rRNA genes of the bacterial, protist, and fungal microbiomes of 131 samples collected in 14 ephemeral small inland lakes located in the endorheic area of the Monegros Desert (NE Spain). The sampling covered different temporal flooding/desiccation cycles that created natura...

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Detalles Bibliográficos
Autores: Menéndez-Serra, Mateu, Triadó-Margarit, Xavier, Casamayor, Emilio O.
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/236995
Acceso en línea:http://hdl.handle.net/10261/236995
Access Level:acceso abierto
Palabra clave:Salt gradient
Monegros desert
Bacteria
Eukaryotes
Inlandsaline lakes
Community ecology
Halophiles
16S rRNA gene
18S rRNA gene
http://metadata.un.org/sdg/15
Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss
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spelling Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)Menéndez-Serra, MateuTriadó-Margarit, XavierCasamayor, Emilio O.Salt gradientMonegros desertBacteriaEukaryotesInlandsaline lakesCommunity ecologyHalophiles16S rRNA gene18S rRNA genehttp://metadata.un.org/sdg/15Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity lossWe studied the 16S and 18S rRNA genes of the bacterial, protist, and fungal microbiomes of 131 samples collected in 14 ephemeral small inland lakes located in the endorheic area of the Monegros Desert (NE Spain). The sampling covered different temporal flooding/desiccation cycles that created natural salinity gradients between 0.1% (w/v) and salt saturation. We aimed to test the hypothesis of a lack of competitive advantage for microorganisms using the “salt-in” strategy in highly fluctuating hypersaline environments where temperature and salinity transitions widely vary within short time periods, as in ephemeral inland lakes. Overall, 5653 bacterial zOTUs and 2658 eukaryal zOTUs were detected heterogeneously distributed with signif- icant variations on taxonomy and general energy-yielding metabolisms and trophic strategies along the gradient. We observed a more diverse bacterial assembly than initially expected at extreme salinities and a lack of dominance of a few “salt-in” organisms. Microbial thresholds were unveiled for these highly fluctuating hypersaline environments with high selective pressures. We conclude that the extremely high dynamism observed in the ephemeral lakes of Monegros may have given a competitive advantage for more versatile ("salt-out") organisms compared to those better adapted to stable high salinities usually more common in solar salterns. Ephemeral inland saline lakes offered a well-suited natural framework for highly detailed evolutionary and ecological studies.Funding was provided by grant BRIDGES CGL2015-69043-P and INTERACTOMA RTI2018-101205-B-I00 fromthe SpanishAgency of Research (AEI-MICINN) and European funding (ERDF) to EOC. MMS was funded by the Spanish FPI PhD scholarships program (BRIDGES-MINECO).Peer reviewedSpringer NatureConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/236995reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1007/s00248-021-01732-9Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2369952026-05-22T06:33:51Z
dc.title.none.fl_str_mv Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
title Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
spellingShingle Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
Menéndez-Serra, Mateu
Salt gradient
Monegros desert
Bacteria
Eukaryotes
Inlandsaline lakes
Community ecology
Halophiles
16S rRNA gene
18S rRNA gene
http://metadata.un.org/sdg/15
Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss
title_short Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
title_full Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
title_fullStr Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
title_full_unstemmed Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
title_sort Ecological and metabolic thresholds in the bacterial, protist and fungal microbiome of ephemeral saline lakes (Monegros Desert, Spain)
dc.creator.none.fl_str_mv Menéndez-Serra, Mateu
Triadó-Margarit, Xavier
Casamayor, Emilio O.
author Menéndez-Serra, Mateu
author_facet Menéndez-Serra, Mateu
Triadó-Margarit, Xavier
Casamayor, Emilio O.
author_role author
author2 Triadó-Margarit, Xavier
Casamayor, Emilio O.
author2_role 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
Monegros desert
Bacteria
Eukaryotes
Inlandsaline lakes
Community ecology
Halophiles
16S rRNA gene
18S rRNA gene
http://metadata.un.org/sdg/15
Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss
topic Salt gradient
Monegros desert
Bacteria
Eukaryotes
Inlandsaline lakes
Community ecology
Halophiles
16S rRNA gene
18S rRNA gene
http://metadata.un.org/sdg/15
Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss
description We studied the 16S and 18S rRNA genes of the bacterial, protist, and fungal microbiomes of 131 samples collected in 14 ephemeral small inland lakes located in the endorheic area of the Monegros Desert (NE Spain). The sampling covered different temporal flooding/desiccation cycles that created natural salinity gradients between 0.1% (w/v) and salt saturation. We aimed to test the hypothesis of a lack of competitive advantage for microorganisms using the “salt-in” strategy in highly fluctuating hypersaline environments where temperature and salinity transitions widely vary within short time periods, as in ephemeral inland lakes. Overall, 5653 bacterial zOTUs and 2658 eukaryal zOTUs were detected heterogeneously distributed with signif- icant variations on taxonomy and general energy-yielding metabolisms and trophic strategies along the gradient. We observed a more diverse bacterial assembly than initially expected at extreme salinities and a lack of dominance of a few “salt-in” organisms. Microbial thresholds were unveiled for these highly fluctuating hypersaline environments with high selective pressures. We conclude that the extremely high dynamism observed in the ephemeral lakes of Monegros may have given a competitive advantage for more versatile ("salt-out") organisms compared to those better adapted to stable high salinities usually more common in solar salterns. Ephemeral inland saline lakes offered a well-suited natural framework for highly detailed evolutionary and ecological studies.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/236995
url http://hdl.handle.net/10261/236995
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1007/s00248-021-01732-9
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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 15,81155

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