Bergen Open Research Archive

Utilization of kelp-derived carbon sources by kelp surface-associated bacteria

Bergen Open Research Archive

Show simple item record Bengtsson, Mia M. Sjøtun, Kjersti Storesund, Julia Endresen Øvreås, Lise 2011-03-29T11:46:45Z 2011-03-29T11:46:45Z 2011-01
dc.identifier.citation Aquatic Microbial Ecology 62(2): 191-199 en_US
dc.description.abstract The surfaces of kelp are covered with bacteria that may utilize kelp-produced carbon and thereby contribute significantly to the carbon flux in kelp forest ecosystems. There is scant knowledge about the identity of these bacteria and about which kelp-derived carbon sources they utilize. An enrichment approach, using kelp constituent carbon sources for bacterial cultivation, was used to identify bacterial populations associated with the kelp Laminaria hyperborea that degrade kelp components. In order to assess whether the cultured bacteria are significant under natural conditions, partial 16 rRNA gene sequences from the cultured bacteria were compared to sequences obtained from the indigenous bacterial communities inhabiting natural kelp surface biofilms. The results identify different members of the Roseobacter clade of Alphaproteobacteria in addition to members of Gammaproteobacteria that are involved in kelp constituent degradation. These bacteria are observed sporadically on natural kelp surfaces and may represent opportunistic bacteria important in degradation of dead kelp material. Many of the cultured bacteria appear to be generalists that are able to utilize different kelp carbon sources. This study is the first to link culturable kelpassociated bacteria with their occurrence and possible roles in the natural environment. en_US
dc.language.iso eng en_US
dc.publisher Inter-Research en
dc.rights Copyright Inter-Research 2010. Published Open Access. en_US
dc.subject Seaweed en
dc.subject Brown algae en
dc.subject Heterotrophic bacteria en
dc.subject Enrichment cultivation en
dc.subject 16S rRNA en
dc.subject Alginate en
dc.subject Laminaran en
dc.subject Fucoidan en
dc.title Utilization of kelp-derived carbon sources by kelp surface-associated bacteria en_US
dc.type Peer reviewed en_US
dc.type Journal article en_US
dc.subject.nsi VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 en_US
dc.rightsHolder Inter-Research en_US
dc.type.version publishedVersion en_US

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