Rhodococcus kyotonensis sp. nov., a novel actinomycete isolated from soil.
A polyphasic study was undertaken to establish the taxonomic position of an isolate, strain DS472(T), from soil in Kyoto, Japan. Phylogenetic analysis, based on the 16S rRNA gene sequences, revealed that this strain constitutes a new subline within the genus Rhodococcus, with Rhodococcus yunnanensis YIM 70056(T) and Rhodococcus fascians DSM 20669(T) as its nearest phylogenetic neighbours (98.2 and 97.8 % sequence similarity, respectively). DNA-DNA hybridization experiments revealed 36 and 29 % relatedness between the isolate and its phylogenetic relatives, R. yunnanensis and R. fascians, respectively. Chemotaxonomic characteristics, including the major quinone MK-8(H(2)), predominant fatty acids C(16 : 0), C(18 : 1)omega9c and 10-methyl C(18 : 0), the presence of cell-wall chemotype IV and mycolic acids, were consistent with the properties of members of the genus Rhodococcus. The DNA G+C content was 64.5 mol%. On the basis of both phenotypic and genotypic evidence, strain DS472(T) represents a novel species of the genus Rhodococcus, for which the name Rhodococcus kyotonensis sp. nov. is proposed. The type strain is strain DS472(T) (=IAM 15415(T)=CCTCC AB206088(T)).
Li
Bing
B
Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-0032, Japan.
Furihata
Keiko
K
Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-0032, Japan.
Ding
Lin-Xian
LX
Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-0032, Japan.
Yokota
Akira
A
Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-0032, Japan.
D001482:Base Composition; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D007564:Japan; D008969:Molecular Sequence Data; D009171:Mycolic Acids / Q000032:analysis; D009693:Nucleic Acid Hybridization; D010802:Phylogeny; D011809:Quinones / Q000032:analysis; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012240:Rhodococcus / Q000737:chemistry / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D012988:Soil Microbiology; D009626:Terminology as Topic
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D009171:Mycolic Acids; D011809:Quinones; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S