Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/42088
DC FieldValueLanguage
dc.contributor.authorBenavides, Maren_US
dc.contributor.authorMoisander, Pia H.en_US
dc.contributor.authorDaley, Meaghan C.en_US
dc.contributor.authorBode, Antonioen_US
dc.contributor.authorAristegui, Javieren_US
dc.contributor.otherAristegui, Javier
dc.date.accessioned2018-10-05T08:21:56Z-
dc.date.available2018-10-05T08:21:56Z-
dc.date.issued2016en_US
dc.identifier.issn0142-7873en_US
dc.identifier.urihttp://hdl.handle.net/10553/42088-
dc.description.abstractDiazotrophy-related studies in the North Atlantic have largely focused on its western tropical area, leaving the subtropics and the east undersampled. We studied the longitudinal distribution of Trichodesmium, UCYN-A, UCYN-B, the putative Gammaproteobacterium γ-24774A11 and Richelia (Het1) along 24.5N, using quantitative polymerase chain reaction on different size fractions (10, 10-3 and 3-0.2 μm) and additional filament counts for Trichodesmium. Trichodesmium was the most abundant phylotype, followed by UCYN-A, γ-24774A11 and Het1, with maximum abundances of 8.8 × 105, 2.0 × 105, 3.3 × 103 and 3.4 × 102 nifH copies L-1, respectively, whereas UCYN-B was mostly undetected. A clear shift in the diazotroph community was observed at ~30°W, coinciding with the transition between the North Atlantic Subtropical Gyre boundary and inner core. This transition zone divided the transect into an eastern half dominated by UCYN-A and western half dominated by Trichodesmium and γ-24774A11. γ-24774A11 was only detected in the 10-3 μm fraction, suggesting their association with larger microbes or aggregates. Our results indicate that typical size fractionation by 10 mm is not optimal for reconciling diazotroph phylotypes to N2 fixation rates and that non-cyanobacterial diazotrophs may contribute importantly to bulk diazotrophic activity in the western subtropical North Atlantic.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Plankton Researchen_US
dc.sourceJournal Of Plankton Research[ISSN 0142-7873],v. 38 (3), p. 662-672en_US
dc.subject2510 Oceanografíaen_US
dc.subject.otherN2 fixationen_US
dc.subject.otherNifHen_US
dc.subject.otherNorth Atlantic Subtropical Gyreen_US
dc.subject.otherQPCRen_US
dc.subject.otherUpwellingen_US
dc.titleLongitudinal variability of diazotroph abundances in the subtropical North Atlantic Oceanen_US
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.doi10.1093/plankt/fbv121
dc.identifier.scopus85006042392-
dc.identifier.isi000377299000022
dcterms.isPartOfJournal Of Plankton Research
dcterms.sourceJournal Of Plankton Research[ISSN 0142-7873],v. 38 (3), p. 662-672
dc.contributor.authorscopusid36501571300
dc.contributor.authorscopusid6602699940
dc.contributor.authorscopusid56970831100
dc.contributor.authorscopusid7101850601
dc.contributor.authorscopusid7006816204
dc.description.lastpage672-
dc.identifier.issue3-
dc.description.firstpage662-
dc.relation.volume38-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.identifier.wosWOS:000377299000022-
dc.contributor.daisngid2027943
dc.contributor.daisngid992451
dc.contributor.daisngid8425193
dc.contributor.daisngid424287
dc.contributor.daisngid227201
dc.identifier.investigatorRIDD-5833-2013
dc.contributor.wosstandardWOS:Benavides, M
dc.contributor.wosstandardWOS:Moisander, PH
dc.contributor.wosstandardWOS:Daley, MC
dc.contributor.wosstandardWOS:Bode, A
dc.contributor.wosstandardWOS:Aristegui, J
dc.date.coverdateMayo 2016
dc.identifier.ulpgces
dc.description.sjr1,098
dc.description.jcr1,983
dc.description.sjrqQ2
dc.description.jcrqQ2
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGIR IOCAG: Oceanografía Biológica y Algología Aplicada-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Biología-
crisitem.author.orcid0000-0002-7526-7741-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameArístegui Ruiz, Javier-
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