Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment

Some traits of the bacterial community dynamics associated to the rhizosphere of the Mediterranean seagrass Posidonia oceanica, growing in carbonate sediments, were analyzed during a 2-year period in an enclosed bay of the Balearic Islands. The diversity of the bacterial community was studied by the...

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Detalles Bibliográficos
Autores: García-Martínez, Micaela, López-López, Arantxa, Calleja, Maria Ll., Marbà, Núria, Duarte, Carlos M.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/88569
Acceso en línea:http://hdl.handle.net/10261/88569
Access Level:acceso abierto
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spelling Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sedimentGarcía-Martínez, MicaelaLópez-López, ArantxaCalleja, Maria Ll.Marbà, NúriaDuarte, Carlos M.Some traits of the bacterial community dynamics associated to the rhizosphere of the Mediterranean seagrass Posidonia oceanica, growing in carbonate sediments, were analyzed during a 2-year period in an enclosed bay of the Balearic Islands. The diversity of the bacterial community was studied by the construction of 16S rDNA clone library. For testing temporal and vertical differences in the abundance of total cells and active Bacteria, we used 4',6-diamidino-2-phenylindole (DAPI) staining and fluorescence in situ hybridization (FISH). Moreover, some relevant groups of sulfate-reducing bacteria (SRB) were occasionally assessed by FISH. Despite the observed decrease in the total DAPI-stained cells, bacterial counts, and sulfate reduction rates throughout the sampling time, we found an increase in both the pore-water sulfide concentration and the proportion of SRB. Overall, the results revealed a very high bacterial diversity and indicated shifts in bacterial dynamics that could not be related to temperature-dependent factors, suggesting a link between the documented regression of the seagrass meadow and the decline of the microbial community, likely due to large organic matter inputs to the bay. © 2008 Coastal and Estuarine Research Federation.Peer reviewedPeer ReviewedEstuarine Research FederationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2013201320092013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/88569reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/885692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
title Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
spellingShingle Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
García-Martínez, Micaela
title_short Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
title_full Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
title_fullStr Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
title_full_unstemmed Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
title_sort Bacterial community dynamics in a seagrass (posidonia oceanica) meadow sediment
dc.creator.none.fl_str_mv García-Martínez, Micaela
López-López, Arantxa
Calleja, Maria Ll.
Marbà, Núria
Duarte, Carlos M.
author García-Martínez, Micaela
author_facet García-Martínez, Micaela
López-López, Arantxa
Calleja, Maria Ll.
Marbà, Núria
Duarte, Carlos M.
author_role author
author2 López-López, Arantxa
Calleja, Maria Ll.
Marbà, Núria
Duarte, Carlos M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Some traits of the bacterial community dynamics associated to the rhizosphere of the Mediterranean seagrass Posidonia oceanica, growing in carbonate sediments, were analyzed during a 2-year period in an enclosed bay of the Balearic Islands. The diversity of the bacterial community was studied by the construction of 16S rDNA clone library. For testing temporal and vertical differences in the abundance of total cells and active Bacteria, we used 4',6-diamidino-2-phenylindole (DAPI) staining and fluorescence in situ hybridization (FISH). Moreover, some relevant groups of sulfate-reducing bacteria (SRB) were occasionally assessed by FISH. Despite the observed decrease in the total DAPI-stained cells, bacterial counts, and sulfate reduction rates throughout the sampling time, we found an increase in both the pore-water sulfide concentration and the proportion of SRB. Overall, the results revealed a very high bacterial diversity and indicated shifts in bacterial dynamics that could not be related to temperature-dependent factors, suggesting a link between the documented regression of the seagrass meadow and the decline of the microbial community, likely due to large organic matter inputs to the bay. © 2008 Coastal and Estuarine Research Federation.
publishDate 2009
dc.date.none.fl_str_mv 2009
2013
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/88569
url http://hdl.handle.net/10261/88569
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Estuarine Research Federation
publisher.none.fl_str_mv Estuarine Research Federation
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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