The hidden seasonality of the rare biosphere in coastal marine bacterioplankton

Handle URI:
http://hdl.handle.net/10754/594216
Title:
The hidden seasonality of the rare biosphere in coastal marine bacterioplankton
Authors:
Alonso-Sáez, Laura; Díaz-Pérez, Laura; Morán, Xosé Anxelu G
Abstract:
Summary: Rare microbial taxa are increasingly recognized to play key ecological roles, but knowledge of their spatio-temporal dynamics is lacking. In a time-series study in coastal waters, we detected 83 bacterial lineages with significant seasonality, including environmentally relevant taxa where little ecological information was available. For example, Verrucomicrobia had recurrent maxima in summer, while the Flavobacteria NS4, NS5 and NS2b clades had contrasting seasonal niches. Among the seasonal taxa, only 4 were abundant and persistent, 20 cycled between rare and abundant and, remarkably, most of them (59) were always rare (contributing <1% of total reads). We thus demonstrate that seasonal patterns in marine bacterioplankton are largely driven by lineages that never sustain abundant populations. A fewer number of rare taxa (20) also produced episodic 'blooms', and these events were highly synchronized, mostly occurring on a single month. The recurrent seasonal growth and loss of rare bacteria opens new perspectives on the temporal dynamics of the rare biosphere, hitherto mainly characterized by dormancy and episodes of 'boom and bust', as envisioned by the seed-bank hypothesis. The predictable patterns of seasonal reoccurrence are relevant for understanding the ecology of rare bacteria, which may include key players for the functioning of marine ecosystems. © 2015 Society for Applied Microbiology and John Wiley & Sons Ltd.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Alonso-Sáez L, Díaz-Pérez L, Morán XAG (2015) The hidden seasonality of the rare biosphere in coastal marine bacterioplankton. Environmental Microbiology: n/a–n/a. Available: http://dx.doi.org/10.1111/1462-2920.12801.
Publisher:
Wiley-Blackwell
Journal:
Environmental Microbiology
Issue Date:
8-Apr-2015
DOI:
10.1111/1462-2920.12801
PubMed ID:
25684402
Type:
Article
ISSN:
1462-2912
Sponsors:
Marie Curie Reintegration Grant
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorAlonso-Sáez, Lauraen
dc.contributor.authorDíaz-Pérez, Lauraen
dc.contributor.authorMorán, Xosé Anxelu Gen
dc.date.accessioned2016-01-19T14:43:28Zen
dc.date.available2016-01-19T14:43:28Zen
dc.date.issued2015-04-08en
dc.identifier.citationAlonso-Sáez L, Díaz-Pérez L, Morán XAG (2015) The hidden seasonality of the rare biosphere in coastal marine bacterioplankton. Environmental Microbiology: n/a–n/a. Available: http://dx.doi.org/10.1111/1462-2920.12801.en
dc.identifier.issn1462-2912en
dc.identifier.pmid25684402en
dc.identifier.doi10.1111/1462-2920.12801en
dc.identifier.urihttp://hdl.handle.net/10754/594216en
dc.description.abstractSummary: Rare microbial taxa are increasingly recognized to play key ecological roles, but knowledge of their spatio-temporal dynamics is lacking. In a time-series study in coastal waters, we detected 83 bacterial lineages with significant seasonality, including environmentally relevant taxa where little ecological information was available. For example, Verrucomicrobia had recurrent maxima in summer, while the Flavobacteria NS4, NS5 and NS2b clades had contrasting seasonal niches. Among the seasonal taxa, only 4 were abundant and persistent, 20 cycled between rare and abundant and, remarkably, most of them (59) were always rare (contributing <1% of total reads). We thus demonstrate that seasonal patterns in marine bacterioplankton are largely driven by lineages that never sustain abundant populations. A fewer number of rare taxa (20) also produced episodic 'blooms', and these events were highly synchronized, mostly occurring on a single month. The recurrent seasonal growth and loss of rare bacteria opens new perspectives on the temporal dynamics of the rare biosphere, hitherto mainly characterized by dormancy and episodes of 'boom and bust', as envisioned by the seed-bank hypothesis. The predictable patterns of seasonal reoccurrence are relevant for understanding the ecology of rare bacteria, which may include key players for the functioning of marine ecosystems. © 2015 Society for Applied Microbiology and John Wiley & Sons Ltd.en
dc.description.sponsorshipMarie Curie Reintegration Granten
dc.publisherWiley-Blackwellen
dc.titleThe hidden seasonality of the rare biosphere in coastal marine bacterioplanktonen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalEnvironmental Microbiologyen
dc.contributor.institutionInstituto Español de Oceanografía; Centro Oceanográfico de Xixón; 33212 Xixón Spainen
dc.contributor.institutionAZTI; Marine Research Division; 48395 Sukarrieta Spainen
kaust.authorMoran, Xose Anxelu G.en

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