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Seasonal dynamics of bacterial biofilms on the kelp Laminaria hyperborea

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dc.contributor.author Bengtsson, Mia M. eng
dc.contributor.author Sjøtun, Kjersti eng
dc.contributor.author Øvreås, Lise eng
dc.date.accessioned 2011-03-29T11:28:13Z
dc.date.available 2011-03-29T11:28:13Z
dc.date.issued 2010-05
dc.identifier.citation Aquatic Microbial Ecology 60(1): 71-83. en_US
dc.identifier.other oai:frida.no:539206
dc.identifier.uri http://hdl.handle.net/1956/4611
dc.description.abstract Seasonal variations of the cell density and bacterial community composition in biofilms growing on the surface of the kelp Laminaria hyperborea from 2 sites on the southwestern coast of Norway were investigated using total cell enumeration and denaturing gradient gel electrophoresis (DGGE) fingerprinting. The major taxonomical groups of bacteria inhabiting the biofilms were identified by DGGE band sequence classification. The microbial cell density of the biofilm appeared to be highly affected by the seasonal growth cycle of the kelp and was found to be lowest on growing kelp in March (minimum 8.3 × 102 cells cm–2), while on non-growing kelp in July to February, it was around 1.0 × 107 cells cm–2 with large fluctuations. The composition of the bacterial community of the biofilm followed a continuous seasonal succession that may be explained by the influence of both biotic factors such as seasonal changes in the kelp substrate and abiotic factors such as seawater temperature. Planctomycetes and Alphaproteobacteria were frequently detected throughout the year, while Verrucomicrobia, Cyanobacteria, Gammaproteobacteria, Betaproteobacteria, and Bacteroidetes were more sporadically detected. The bacterial communities of the biofilm on kelp showed little overlap with that of the surrounding seawater en_US
dc.language.iso eng eng
dc.publisher Inter-Research en
dc.rights Copyright Inter-Research 2010. Published Open Access. eng
dc.subject Kelp eng
dc.subject Bacteria eng
dc.subject Biofilm eng
dc.subject Marine eng
dc.subject Seasonal dynamics eng
dc.subject Seaweed eng
dc.subject DGGE eng
dc.title Seasonal dynamics of bacterial biofilms on the kelp Laminaria hyperborea en_US
dc.type Peer reviewed eng
dc.type Journal article eng
dc.subject.nsi VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 eng
dc.rightsHolder Inter-Research en_US
dc.type.version publishedVersion eng
bora.peerreviewed Peer reviewed eng
bibo.doi http://dx.doi.org/10.3354/ame01409 eng
dc.identifier.doi http://dx.doi.org/10.3354/ame01409


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