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Closed Access item Bacterioplankton composition of the coastal upwelling system of `Ría de Vigo', NW Spain

Authors:Alonso-Gutiérrez, Jorge
Lekunberri, Itziar
Teira, Eva
Gasol, Josep M.
Figueras, Antonio
Novoa, Beatriz
Keywords:Bacterioplankton, Roseobacter, upwelling
Issue Date:Dec-2009
Publisher:Blackwell Publishing
Citation:FEMS Microbiology Ecology 70(3): 493-505(2009)
Abstract:Catalysed reported deposition-FISH and clone libraries indicated that Roseobacter, followed by Bacteroidetes, and some gammaproteobacterial groups such as SAR86, dominated the composition of bacterioplankton in Ría de Vigo, NW Spain, in detriment to SAR11 (almost absent in this upwelling ecosystem). Since we sampled four times during the year, we observed pronounced changes in the structure of each bacterioplankton component, particularly for the Roseobacter lineage. We suggest that such variations in the coastal upwelling ecosystem of Ría de Vigo were associated with the characteristic phytoplankton communities of the four different hydrographical situations: winter mixing, spring bloom, summer stratification, and autumn upwelling. We retrieved new sequences among the major marine bacterial lineages, particularly among Roseobacter, SAR11, and especially SAR86. The spring community was dominated by two Roseobacter clades that had previously been related to phytoplankton blooms. In the other seasons, communities with higher diversity than the spring one were detected
Description:13 pages, 3 figures, 3 tables
Publisher version (URL):http://dx.doi.org/10.1111/j.1574-6941.2009.00766.x
URI:http://hdl.handle.net/10261/20011
ISSN:0168-6496
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