Change search
ReferencesLink to record
Permanent link

Direct link
The Native Bacterioplankton Community in the Central Baltic Sea is Influenced by Freshwater Bacterial Species.
Show others and affiliations
2008 (English)In: APPLIED AND ENVIRONMENTAL MICROBIOLOGY, ISSN 0099-2240, Vol. 74, no 2, 503-515 p.Article in journal (Refereed) Published
Abstract [en]

The Baltic Sea is one of the largest brackish environments on Earth. Despite extensive knowledge about food web interactions and pelagic ecosystem functioning, information about the bacterial community composition in the Baltic Sea is scarce. We hypothesized that due to the eutrophic low-salinity environment and the long water residence time (>5 years), the bacterioplankton community from the Baltic proper shows a native "brackish" composition influenced by both freshwater and marine phylotypes. The bacterial community composition in surface water (3-m depth) was examined at a single station throughout a full year. Denaturing gradient gel electrophoresis (DGGE) showed that the community composition changed over the year. Further, it indicated that at the four extensive samplings (16S rRNA gene clone libraries and bacterial isolates from low-and high-nutrient agar plates and seawater cultures), different bacterial assemblages associated with different environmental conditions were present. Overall, the sequencing of 26 DGGE bands, 160 clones, 209 plate isolates, and 9 dilution culture isolates showed that the bacterial assemblage in surface waters of the central Baltic Sea was dominated by Bacteroidetes but exhibited a pronounced influence of typical freshwater phylogenetic groups within Actinobacteria, Verrucomicrobia, and Betaproteobacteria and a lack of typical marine taxa. This first comprehensive analysis of bacterial community composition in the central Baltic Sea points to the existence of an autochthonous estuarine community uniquely adapted to the environmental conditions prevailing in this brackish environment.

Place, publisher, year, edition, pages
2008. Vol. 74, no 2, 503-515 p.
National Category
URN: urn:nbn:se:su:diva-15621DOI: doi:10.1128/AEM.01983-07ISI: 000252453100021OAI: diva2:182141
Addresses: 1. Kalmer Univ, Dept Nat Sci, S-39182 Kalmer, Sweden 2. Univ Stockholm, Dept Syst Ecol, S-10691 Stockholm, SwedenAvailable from: 2008-12-07 Created: 2008-12-07 Last updated: 2011-01-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Larsson, Ulf
By organisation
Department of Systems Ecology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 75 hits
ReferencesLink to record
Permanent link

Direct link