title: Saccharomonospora oceani sp. nov. isolated from marine sediments in Little Andaman, India.
abstract: Two actinomycete strains, designated YIM M11168(T) and YIM M11177, were isolated from marine sediment samples from Little Andaman, Indian Ocean, and their taxonomic position was determined by a polyphasic approach. The two Gram-positive, aerobic strains were observed to produce branched substrate mycelium and aerial hyphae but did not fragment, and no diffusible pigment was produced on the media tested. At maturity, spores were formed singly or in pairs on aerial hyphae and substrate mycelium, and occasionally the single ones were borne on long sporophores. The optimum growth was determined to occur at 28 °C, 0-4 % (w/v) NaCl and pH 7.0-8.0. Whole-cell hydrolysates of both strains contained meso-diaminopimelic acid and the diagnostic sugars were determined to be galactose, glucose and arabinose. Their predominant menaquinone was found to be MK-9(H4). The polar lipids detected in the two strains were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol mannoside, phosphatidylinositol, phosphatidylmethylethanolamine, phosphatidylethanolamine and two unknown phosphoglycolipids. The major fatty acids (>10 %) identified were iso-C16:0, iso-C16:1 H, iso-C16:0, C17:1 ω6c for strain YIM M11168(T), iso-C16:0 and Summed Feature 3 for strain YIM M11177. The G + C contents of the genomic DNAs of both strains were determined to be 71.4 %. DNA-DNA hybridization relatedness values (78.4 ± 3.7 %) of these two isolates supported the conclusion that they belong to the same species. Based on phylogenetic analysis, phenotypic and genotypic data, it is concluded that the two isolates belong to a novel species of the genus Saccharomonospora of the family Pseudonocardiaceae. The name Saccharomonospora oceani sp. nov. (Type strain YIM M11168(T) = DSM 45700(T) = JCM 18128(T)) is proposed for the novel species.
authors.affiliation: Key Laboratory of Biogeography and Bioresource in Arid Land, CAS, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, People's Republic of China.
authors.forename: Dao-Feng
authors.initials: DF
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Jie
authors.initials: J
authors.lastname: He
authors.forename: Xiao-Mei
authors.initials: XM
authors.lastname: Zhang
authors.forename: Zi-Jun
authors.initials: ZJ
authors.lastname: Xiong
authors.forename: Maloy Kumar
authors.initials: MK
authors.lastname: Sahu
authors.forename: Kannan
authors.initials: K
authors.lastname: Sivakumar
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Li
mesh_terms: D000192:Actinomycetales / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D015373:Bacterial Typing Techniques; D001482:Base Composition; D001483:Base Sequence; D004269:DNA, Bacterial / Q000235:genetics; D003960:Diaminopimelic Acid; D005227:Fatty Acids; D020459:Genes, rRNA; D019015:Geologic Sediments / Q000382:microbiology*; D007194:India; D019156:Indian Ocean; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D013171:Spores, Bacterial; D024482:Vitamin K 2 / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; D003960:Diaminopimelic Acid