Population dynamics of Vibrio spp. associated with marine sponge microcosms

Vibrio is a diverse genus of marine-associated bacteria with at least 74 species and more expected as additional marine ecospheres are interrogated. This report describes a phylogenetic reconstruction of Vibrio isolates derived from one such unique ecosystem, marine sponges (Phylum Porifera) collect...

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Bibliographic Details
Published in:The ISME Journal 2010-12, Vol.4 (12), p.1608-1612
Main Authors: Hoffmann, Maria, Fischer, Markus, Ottesen, Andrea, McCarthy, Peter J, Lopez, Jose V, Brown, Eric W, Monday, Steven R
Format: Article
Language:English
Subjects:
631/158/1745
631/181/757
631/326/2565/855
631/326/41/2535
Animals
Biomedical and Life Sciences
DNA, Intergenic
Ecology
Ecosystem
Evolutionary Biology
Life Sciences
Marine
Marine ecosystems
Microbial Ecology
Microbial Genetics and Genomics
Microbiology
Molecular Typing
Phylogeny
Population Dynamics
Population structure
Porifera
Porifera - microbiology
RNA, Ribosomal, 16S - genetics
RNA, Ribosomal, 23S - genetics
Sequence Analysis, DNA
Shallow water
short-communication
Speciation
Symbiosis
Taxa
Vibrio
Vibrio - classification
Vibrio - genetics
Vibrio - growth & development
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Summary:Vibrio is a diverse genus of marine-associated bacteria with at least 74 species and more expected as additional marine ecospheres are interrogated. This report describes a phylogenetic reconstruction of Vibrio isolates derived from one such unique ecosystem, marine sponges (Phylum Porifera) collected from depths of 150 to 1242 feet. 16S rRNA gene sequencing along with molecular typing of 16S–23S rRNA intergenic spacer regions clustered many sponge-associated Vibrio ( spp ) with current known species. That is, several benthic Vibrio species commensal with Porifera sponges seemed genetically linked to vibrios associated with coastal or shallow-water communities, signalling a panmictic population structure among seemingly ecologically disparate strains. Conversely, phylogenetic analysis provided evidence for at least two novel Vibrio speciation events within this specific sponge microcosm. Collectively, these findings earmark this still relatively unknown environment as a bastion of taxonomic and phylogenetic variability for the genus and probably other bacterial taxa.
ISSN:1751-7362
1751-7370
DOI:10.1038/ismej.2010.85