Porphyrobacter dokdonensis sp. nov., isolated from sea water.
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.
Yoon
Jung-Hoon
JH
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
Kang
So-Jung
SJ
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
Lee
Mi-Hwa
MH
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
Oh
Hyun Woo
HW
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
Oh
Tae-Kwang
TK
Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea.
D020561:Alphaproteobacteria / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification* / Q000502:physiology; D015373:Bacterial Typing Techniques; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis / Q000302:isolation & purification; D020459:Genes, rRNA; D006131:Growth Inhibitors / Q000494:pharmacology; D008969:Molecular Sequence Data; D009068:Movement; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D011809:Quinones / Q000032:analysis / Q000302:isolation & purification; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D012965:Sodium Chloride / Q000494:pharmacology; D013171:Spores, Bacterial; D013696:Temperature; D014871:Water Microbiology
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D006131:Growth Inhibitors; D011809:Quinones; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride