The hidden seasonality of the rare biosphere in coastal marine bacterioplankton
KAUST DepartmentRed Sea Research Center (RSRC)
Permanent link to this recordhttp://hdl.handle.net/10754/594216
MetadataShow full item record
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.
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.
SponsorsMarie Curie Reintegration Grant
- Response of rare, common and abundant bacterioplankton to anthropogenic perturbations in a Mediterranean coastal site.
- Authors: Baltar F, Palovaara J, Vila-Costa M, Salazar G, Calvo E, Pelejero C, Marrasé C, Gasol JM, Pinhassi J
- Issue date: 2015 Jun
- Diversity of rare and abundant bacteria in surface waters of the Southern Adriatic Sea.
- Authors: Quero GM, Luna GM
- Issue date: 2014 Oct
- Determining indicator taxa across spatial and seasonal gradients in the Columbia River coastal margin.
- Authors: Fortunato CS, Eiler A, Herfort L, Needoba JA, Peterson TD, Crump BC
- Issue date: 2013 Oct
- Patterns of marine bacterioplankton biodiversity in the surface waters of the Scotia Arc, Southern Ocean.
- Authors: Jamieson RE, Rogers AD, Billett DS, Smale DA, Pearce DA
- Issue date: 2012 May
- Structure of the rare archaeal biosphere and seasonal dynamics of active ecotypes in surface coastal waters.
- Authors: Hugoni M, Taib N, Debroas D, Domaizon I, Jouan Dufournel I, Bronner G, Salter I, Agogué H, Mary I, Galand PE
- Issue date: 2013 Apr 9