Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 409359
Title Biological characterisation of Haliclona (?gellius) sp.: sponge and associated microorganisms.
Author(s) Sipkema, D.; Holmes, B.; Nichols, S.A.; Blanch, H.W.
Source Microbial Ecology 58 (2009)4. - ISSN 0095-3628 - p. 903 - 920.
Department(s) Microbiological Laboratory
Publication type Refereed Article in a scientific journal
Publication year 2009
Keyword(s) chondrilla-nucula demospongiae - marine sponge - phylogenetic analysis - bacterial diversity - ribosomal-rna - vertical transmission - microbial communities - halichondria-panicea - spatial-distribution - sequence data
Abstract We have characterised the northern Pacific undescribed sponge Haliclona (?gellius) sp. based on rDNA of the sponge and its associated microorganisms. The sponge is closely related to Amphimedon queenslandica from the Great Barrier Reef as the near-complete 18S rDNA sequences of both sponges were identical. The microbial fingerprint of three specimens harvested at different times and of a transplanted specimen was compared to identify stably associated microorganisms. Most bacterial phyla were detected in each sample, but only a few bacterial species were determined to be stably associated with the sponge. A sponge-specific beta- and gamma-Proteobacterium were abundant clones and both of them were present in three of the four specimens analysed. In addition, a Planctomycete and a Crenarchaea were detected in all sponge individuals. Both were closely related to operational taxonomic units that have been found in other sponges, but not exclusively in sponges. Interestingly, also a number of clones that are closely related to intracellular symbionts from insects and amoeba were detected.
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