BORA - UiB

Bergen Open Research Archive

Planctomycetes dominate biofilms on surfaces of the kelp Laminaria hyperborea

Bergen Open Research Archive

Show simple item record

dc.contributor.author Bengtsson, Mia M.
dc.contributor.author Øvreås, Lise
dc.date.accessioned 2011-03-29T11:41:19Z
dc.date.available 2011-03-29T11:41:19Z
dc.date.issued 2010
dc.identifier.citation BMC Microbiology 10:261 en_US
dc.identifier.uri http://dx.doi.org/10.1186/1471-2180-10-261
dc.identifier.uri http://hdl.handle.net/1956/4612
dc.description.abstract Background: Bacteria belonging to Planctomycetes display several unique morphological and genetic features and are found in a wide variety of habitats on earth. Their ecological roles in these habitats are still poorly understood. Planctomycetes have previously been detected throughout the year on surfaces of the kelp Laminaria hyperborea from southwestern Norway. We aimed to make a detailed investigation of the abundance and phylogenetic diversity of planctomycetes inhabiting these kelp surfaces. Results: Planctomycetes accounted for 51-53% of the bacterial biofilm cells in July and September and 24% in February according to fluorescence in situ hybridization (FISH) results. Several separate planctomycetes lineages within Pirellulae, Planctomyces and OM190 were represented in 16S rRNA gene clone libraries and the most abundant clones belonged to yet uncultured lineages. In contrast to the abundance, the diversity of the planctomycete populations increased from July to February and was probably influenced by the aging of the kelp tissue. One planctomycete strain that was closely related to Rhodopirellula baltica was isolated using selective cultivation techniques. Conclusions: Biofilms on surfaces of L. hyperborea display an even higher proportion of planctomycetes compared to other investigated planctomycete-rich habitats such as open water, sandy sediments and peat bogs. The findings agree well with the hypothesis of the role of planctomycetes as degraders of sulfated polymeric carbon in the marine environment as kelps produce such substances. In addition, the abundant planctomycete populations on kelp surfaces and in association with other eukaryotes suggest that coexistence with eukaryotes may be a key feature of many planctomycete lifestyles. en_US
dc.language.iso eng en_US
dc.publisher BioMed Central en
dc.rights Copyright 2010 Bengtsson and Øvreås; licensee BioMed Central Ltd.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. en_US
dc.rights.uri http://creativecommons.org/licenses/by/2.0/ en_US
dc.title Planctomycetes dominate biofilms on surfaces of the kelp Laminaria hyperborea 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 Bengtsson and Øvreås en_US
dc.type.version publishedVersion en_US


Files in this item

 

This item appears in the following Collection(s)

Show simple item record

Copyright 2010 Bengtsson and Øvreås; licensee BioMed Central Ltd.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Except where otherwise noted, this item's license is described as Copyright 2010 Bengtsson and Øvreås; licensee BioMed Central Ltd.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Search BORA


Browse

My Account