Diversity and functionality of soil prokaryotic communities in antarctic volcanic soils: insights from penguin-influenced environments

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datacite.alternateIdentifier.citationPolar Biology, 47 (9), 961-945, 2024
datacite.alternateIdentifier.doi10.1007/s00300-024-03273-6
datacite.alternateIdentifier.issn0722-4060
datacite.creatorSegura, Diego
datacite.creatorJordaan, Karen
datacite.creatorDíez, Beatriz
datacite.creatorTamayo-Leiva, Javier
datacite.creatorDoetterl, Sebastian
datacite.creatorWasner, Daniel
datacite.creatorCifuentes-Anticevic, Jerónimo
datacite.creatorCasanova-Katny, Angélica
datacite.date2024
datacite.rightsRegistro bibliográfico
datacite.subjectAntarctic
datacite.subjectNitrogen Cycle
datacite.subjectOrnithogenic Soils
datacite.subjectPenguins Rookeries
datacite.subjectProcaryotic Community
datacite.subjectSoil Nutrients
datacite.subjectCommunity Structure
datacite.subjectFunctional Role
datacite.subjectMetabolism
datacite.subjectMicrobial Community
datacite.subjectMorphology
datacite.titleDiversity and functionality of soil prokaryotic communities in antarctic volcanic soils: insights from penguin-influenced environments
dc.contributor.authorCASANOVA KATNY, MARIA ANGELICA
dc.description.abstractIn the nutrient-limited Antarctic terrestrial habitat, penguins transfer a significant amount of nutrients from the marine to the terrestrial ecosystem through their depositions (i.e., guano). This guano influences soil physicochemical properties, leading to the formation of ornithogenic soil rich in nutrients and organic matter. We hypothesize that soil prokaryotic communities will be strongly influenced by the contribution of nitrogenous nutrients from penguin rookeries, maintaining the influence over long distances. The objective was to establish how the soil prokaryotic diversity and community structure change with distance from a penguin colony, which provides large amounts of guano and nitrogenous compounds, and to study the effects of these nutrients on the functional role of these communities. Methods include volcanic soil sampling along a 1200 m transect from the penguin active rookery and the characterization of soil nutrient content and soil prokaryotic communities using 16S rRNA high-throughput amplicon sequencing. In contrast to our hypothesis, the results showed that the impact of guano from the penguin colony was restricted to the first 300 m. Probably because the penguin rookery was sheltered, strong wind and wind direction did not affect the transport of nutrients from the penguin rookery. Areas close to the penguin rookery were dominated by Proteobacteria and Bacteroidetes, while areas situated further away were dominated by Acidobacteria, Actinobacteria, Chloroflexi, Gemmatimonadetes, Nitrospirae, and Planctomycetes. Beta diversity analysis among the soil prokaryotic communities revealed a high degree of community heterogeneity, strongly associated with N compound characteristics (NH<inf>4</inf>, NO<inf>3</inf>, and %N), C, and pH. Inferences from N metabolism genes suggest a high potential of the microbial community for dissimilatory nitrate reduction genes (DNRA) to ammonium, assimilatory nitrate reduction (ANR), and denitrification. Although it is assumed that the nitrogenous compounds of the penguin colonies reach long distances and affect the prokaryotic community, this effect can vary with wind directions or the morphology of the site, reducing the impact of the guano over long distances, as our results indicate. On the other hand, functional predictions give some clues about the main actors in nitrogen cycling, through processes like dissimilatory nitrate reduction, assimilatory nitrate reduction, and denitrification. © 2024 Elsevier B.V., All rights reserved.
dc.description.ia_keywordsoil, penguin, prokaryotic, nutrients, guano, communities, community
dc.identifier.issn1432-2056
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5959
dc.language.isoen
dc.publisherSpringer Nature
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourcePolar Biology
dc.subject.ia_odsODS 7: Energía asequible y no contaminante
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Biológicas
dc.subject.ia_oecd3nEcología
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2024
oaire.citationEndPage961
oaire.citationIssue9
oaire.citationStartPage945
oaire.citationTitlePolar Biology
oaire.citationVolume47
oaire.fundingReferenceANID FONDECYT 1181745, 3190464
oaire.fundingReferenceANID FONDAP 15110009, 15200002
oaire.fundingReferenceINACH
oaire.licenseConditionCopyright © Springer-Verlag GmbH, 2024
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
relation.isAuthorOfPublicationa9399b7c-ca2e-4330-b761-690bd7ef26d8
relation.isAuthorOfPublication.latestForDiscoverya9399b7c-ca2e-4330-b761-690bd7ef26d8
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Ambientales
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionAquatic Sciences & Fisheries Abstracts
uct.indizacionZoological Record
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