Porphyrobacter dokdonensis sp. nov., isolated from sea water.
Int J Syst Evol Microbiol, 2006/5;56(Pt 5):1079-1083.
Yoon JH[1], Kang SJ[1], Lee MH[1], Oh HW[1], Oh TK[1]
Affiliations
PMID: 16627658DOI: 10.1099/ijs.0.63840-0
Impact factor: 2.689
Abstract
A Gram-negative, non-motile, non-spore-forming, slightly halophilic bacterial strain, DSW-74T, was isolated from sea water off the island of Dokdo, Korea, and its taxonomic position was investigated by a polyphasic study. Strain DSW-74T grew optimally at 37 degrees C and in the presence of 2 % (w/v) NaCl. It contained Q-10 as the predominant ubiquinone and C17 : 1omega6c and C18 : 1omega7c as the major fatty acids. Its DNA G+C content was 65.8 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DSW-74T was most closely related to Porphyrobacter species. Similarity values between the 16S rRNA gene sequence of strain DSW-74T and those of the type strains of recognized Porphyrobacter species and of Erythromicrobium ramosum were in the range 97.4-98.7 %. Strain DSW-74T exhibited 16S rRNA gene sequence similarity values of <97.5 % to recognized Erythrobacter species and the other species used in the phylogenetic analysis. DNA-DNA relatedness levels and differential phenotypic properties made it possible to categorize strain DSW-74T as representing a novel Porphyrobacter species. On the basis of the taxonomic data presented, it is proposed that DSW-74T (=KCTC 12395T=DSM 17193T) should be classified in the genus Porphyrobacter as the type strain of a novel species, Porphyrobacter dokdonensis sp. nov.
MeSH terms
Alphaproteobacteria; Bacterial Typing Techniques; DNA, Bacterial; DNA, Ribosomal; Fatty Acids; Genes, rRNA; Growth Inhibitors; Molecular Sequence Data; Movement; Nucleic Acid Hybridization; Phylogeny; Quinones; RNA, Bacterial; RNA, Ribosomal, 16S; Seawater; Sodium Chloride; Spores, Bacterial; Temperature; Water Microbiology
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