Phycicoccus bigeumensis sp. nov., a mesophilic actinobacterium isolated from Bigeum Island, Korea.
An actinomycete strain, designated MSL-03(T), was isolated from a soil sample collected from Bigeum Island in the Republic of Korea. The coccoid cells of the organism were Gram-positive and non-motile and did not form endospores. The colonies were yellow, small, circular with entire margins and contained meso-diaminopimelic acid as the diagnostic diamino acid in the peptidoglycan. The major menaquinone was MK-8(H4). The polar lipids detected were diphosphatidylglycerol and phosphatidylglycerol. The major fatty acids were iso-C(15 : 0), iso-C(16 : 0), C(17 : 0), anteiso-C(15 : 0), 10-methyl C(17 : 0), iso-C(14 : 0) and C(17 : 1)omega8c. The DNA G+C content was 73.4 mol%. Phylogenetic analyses based on the 16S rRNA gene sequence positioned strain MSL-03(T) in a clade comprising Phycicoccus jejuensis KSW2-15(T) and Phycicoccus dokdonensis DS-8(T). The organism showed the highest level of sequence similarity with respect to P. dokdonensis DS-8(T) (99.58 % over 1424 nt), with differences in 64 positions out of 1488. The levels of DNA-DNA relatedness with its closest neighbours (<70 %) showed that the isolate represents a distinct genomic species. On the basis of the phenotypic and genotypic results, strain MSL-03(T) represents a novel species of the genus Phycicoccus, for which the name Phycicoccus bigeumensis sp. nov. is proposed. The type strain is strain MSL-03(T) (=KCTC 19266(T) =DSM 19264(T)).
Dastager
Syed G
SG
Functional Metabolomics Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea.
Lee
Jae-Chan
JC
Ju
Yoon-Jung
YJ
Park
Dong-Jin
DJ
Kim
Chang-Jin
CJ
D000192:Actinomycetales / Q000737:chemistry / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D003960:Diaminopimelic Acid / Q000737:chemistry; D005227:Fatty Acids / Q000737:chemistry; D005798:Genes, Bacterial; D020459:Genes, rRNA; D005838:Genotype; D007723:Korea; D008969:Molecular Sequence Data; D010457:Peptidoglycan / Q000737:chemistry; D010641:Phenotype; D010743:Phospholipids / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000737:chemistry
D004269:DNA, Bacterial; D005227:Fatty Acids; D010457:Peptidoglycan; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C024223:vitamin MK 8; D003960:Diaminopimelic Acid