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. eng Sjøtun, Kjersti eng Storesund, Julia Endresen eng Øvreås, Lise eng 2011-03-29T11:46:45Z 2011-03-29T11:46:45Z 2011-01 eng
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 eng
dc.publisher Inter-Research eng
dc.subject Seaweed eng
dc.subject Brown algae eng
dc.subject Heterotrophic bacteria eng
dc.subject Enrichment cultivation eng
dc.subject 16S rRNA eng
dc.subject Alginate eng
dc.subject Laminaran eng
dc.subject Fucoidan eng
dc.title Utilization of kelp-derived carbon sources by kelp surface-associated bacteria eng
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.rights.holder Copyright Inter-Research 2010. Published Open Access.
dc.rights.holder Inter-Research eng
dc.type.version publishedVersion eng
bora.peerreviewed Peer reviewed eng
bibo.doi eng

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