Passive warming reduces stress and shifts reproductive effort in the Antarctic moss, Polytrichastrum alpinum

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datacite.alternateIdentifier.citationAnnals of Botany, 119 (1), 38-27, 2017
datacite.alternateIdentifier.doi10.1093/aob/mcw201
datacite.alternateIdentifier.issn0305-7364
datacite.creatorShortlidge, Erin E.
datacite.creatorEppley, Sarah M.
datacite.creatorKohler, Hans
datacite.creatorRosenstiel, Todd N.
datacite.creatorZuniga, Gustavo E.
datacite.creatorCasanova-Katny, Angelica
datacite.date2017
datacite.rightsRegistro bibliográfico
datacite.subjectAntarctic flora
datacite.subjectAntarctica
datacite.subjectbryophytes
datacite.subjectantioxidants
datacite.subjectclimate change
datacite.subjectmosses
datacite.subjectphysiology
datacite.subjectphysiological ecology
datacite.subjectPolytrichastrum alpinum
datacite.subjectsexual reproduction
datacite.titlePassive warming reduces stress and shifts reproductive effort in the Antarctic moss, Polytrichastrum alpinum
dc.contributor.authorCASANOVA KATNY, MARIA ANGELICA
dc.date.accessioned2025-10-06T14:21:40Z
dc.date.available2025-10-06T14:21:40Z
dc.description.abstractBackground and Aims The Western Antarctic Peninsula is one of the most rapidly warming regions on Earth, and many biotic communities inhabiting this dynamic region are responding to these well-documented climatic shifts. Yet some of the most prevalent organisms of terrestrial Antarctica, the mosses, and their responses to warming have been relatively overlooked and understudied. In this research, the impacts of 6 years of passive warming were investigated using open top chambers (OTCs), on moss communities of Fildes Peninsula, King George Island, Antarctica. Methods The effects of experimental passive warming on the morphology, sexual reproductive effort and stress physiology of a common dioicous Antarctic moss, Polytrichastrum alpinum, were tested, gaining the first speciesspecific mechanistic insight into moss responses to warming in the Antarctic. Additionally community analyses were conducted examining the impact of warming on overall moss percentage cover and sporophyte production in intact Antarctic moss communities. Key Results Our results show a generally greater percentage moss cover under warming conditions as well as increased gametangia production in P. alpinum. Distinct morphological and physiological shifts in P. alpinum were found under passive warming compared with those without warming: warmed mosses reduced investment in cellular stress defences, but invested more towards primary productivity and gametangia development. Conclusions Taken together, results from this study of mosses under passive warming imply that in ice-free moss-dominated regions, continued climate warming will probably have profound impacts on moss biology and colonization along the Western Antarctic Peninsula. Such findings highlight the fundamental role that mosses will play in influencing the terrestrialization of a warming Antarctica.
dc.description.ia_keywordwarming, moss, antarctic, passive, mosses, were, alpinum
dc.identifier.issn1095-8290
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/6736
dc.language.isoen
dc.publisherOxford University Press
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourceAnnals of Botany
dc.subject.ia_odsODS 13: Acción por el clima
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Biológicas
dc.subject.ia_oecd3nBiología General
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.citationEdition2017
oaire.citationEndPage38
oaire.citationIssue1
oaire.citationStartPage27
oaire.citationTitleAnnals of Botany
oaire.citationVolume119
oaire.fundingReferenceINACH FR-0112, T0307
oaire.fundingReferenceANID FONDECYT 1120895 (Regular)
oaire.fundingReferenceNSF DEB 128225, PLR 1341742
oaire.licenseConditionCopyright © Oxford University Press, 2016
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.indizacionPubMed
uct.indizacionScimago
uct.indizacionCrossref
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