6533b82efe1ef96bd1293344
RESEARCH PRODUCT
Actibacterium mucosum gen. nov., sp. nov., a marine alphaproteobacterium from Mediterranean seawater
M. Carmen MaciánEsperanza GarayMaría A. RuviraDavid R. ArahalMaría-jesús PujalteTeresa Lucenasubject
DNA BacterialMolecular Sequence DataBiologyMicrobiologyGenusPhylogeneticsRNA Ribosomal 16SBotanyMediterranean SeaSeawaterRhodobacteraceaePhylogenyEcology Evolution Behavior and SystematicsBase CompositionPhylogenetic treeStrain (chemistry)Fatty AcidsQuinonesPhosphatidylglycerolsSequence Analysis DNAGeneral MedicineRibosomal RNA16S ribosomal RNAHalophileBacterial Typing TechniquesType speciesSpaindescription
Strain R46T, a marine alphaproteobacterium, was isolated from Mediterranean seawater at Malvarrosa beach, Valencia, Spain. It is an aerobic chemo-organotrophic, mesophilic and slightly halophilic organism, with complex ionic requirements. Phylogenetic analyses based on the 16S rRNA and gyrB gene sequences showed that strain R46T formed a separate branch within the family Rhodobacteraceae , bearing similarities below 94.7 and 80.3 %, respectively, to any other recognized species. It contained Q10 as the predominant isoprenoid quinone and C18 : 1ω7c/C18 : 1ω6c as the major cellular fatty acid. Phosphatidylglycerol was the only identified polar lipid, although other lipids were also detected. The DNA G+C content of the genomic DNA was 61.3 mol%. On the basis of extensive phenotypic and phylogenetic comparative analysis, it is concluded that the strain represents a novel genus and species, for which the name Actibacterium mucosum gen. nov., sp. nov. is proposed. The type strain of the type species is Actibacterium mucosum R46T ( = CECT 7668T = KCTC 23349T).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-12-01 | International Journal of Systematic and Evolutionary Microbiology |