Phaeobacter caeruleus sp. nov., a blue-coloured, colony-forming bacterium isolated from a marine electroactive biofilm.

@article{Vandecandelaere2009PhaeobacterCS,
  title={Phaeobacter caeruleus sp. nov., a blue-coloured, colony-forming bacterium isolated from a marine electroactive biofilm.},
  author={Ilse Vandecandelaere and Eveline Segaert and Alfonso Mollica and Marco Faimali and Peter A. Vandamme},
  journal={International journal of systematic and evolutionary microbiology},
  year={2009},
  volume={59 Pt 5},
  pages={
          1209-14
        }
}
Three isolates (LMG 24369(T), LMG 24370 and R-26156) obtained from a marine electroactive biofilm that was grown on a cathodically polarized electrode were investigated by using a polyphasic taxonomic approach. Whole-cell fatty acid methyl ester and 16S rRNA gene sequence analyses indicated that the isolates were members of the genus Phaeobacter, class Alphaproteobacteria. Genotypic and phenotypic analyses demonstrated that the three isolates represent a novel species of the genus Phaeobacter… 
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Genome sequence of Phaeobacter caeruleus type strain (DSM 24564T), a surface-associated member of the marine Roseobacter clade
TLDR
Putative quorum sensing systems are reported, based on the finding of six N-acyl-homoserine lactone synthetases, and it is shown that the blue color of P. caeruleus is probably due to the production of the secondary metabolite indigoidine, and might have inhibitory effects on other bacteria.
Genome sequence of Phaeobacter caeruleus type strain (DSM 24564T), a surface-associated member of the marine Roseobacter clade
TLDR
Putative quorum sensing systems are reported, based on the finding of six N-acyl-homoserine lactone synthetases, and it is shown that the blue color of P. caeruleus is probably due to the production of the secondary metabolite indigoidine, and might have inhibitory effects on other bacteria.
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Phylogenetic distinctiveness, chemotaxonomic differences and phenotypic properties revealed that the isolates represent a novel genus and species of the family Roseobacteraceae, belonging to the class Alphaproteobacteria, for which the name Thiosulfatihalobacter marinus gen. nov. is proposed.
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