title: Microbacterium aquimaris sp. nov., isolated from seawater.
abstract: Strains JS54-2(T) and JS63-1 were isolated from seawater at Jeju, Korea. Cells of these strains were Gram-positive, non-motile, non-spore-forming, short rods and formed yellow-pigmented colonies on tryptic soy agar. The strains had chemotaxonomic markers that were consistent with their classification in the genus Microbacterium, i.e. MK-11, MK-12 and MK-10 as the major menaquinones, fatty acids that were predominantly iso- and anteiso-branched, galactose and glucose as the cell-wall sugars, peptidoglycan-type B2beta with glycolyl residues and DNA G+C contents of 69.3-69.6 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that the strains were closely related to Microbacterium oleivorans DSM 16091(T) and Microbacterium halophilum IFO 16062(T) (with 97.7 and 97.4 % sequence similarity, respectively) and formed a separate lineage with M. halophilum in the genus Microbacterium. Data from DNA-DNA hybridization and phenotypic analyses supported the conclusion that strains JS54-2(T) and JS63-1 represent a novel species in the genus Microbacterium, for which the name Microbacterium aquimaris sp. nov. is proposed. The type strain is JS54-2(T) (=KCTC 19124(T) =DSM 19713(T)).
authors.affiliation: Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 52 Eoeun-dong, Yuseong-gu, Daejeon 305-333, Republic of Korea.
authors.forename: Kwang Kyu
authors.initials: KK
authors.lastname: Kim
authors.forename: Keun Chul
authors.initials: KC
authors.lastname: Lee
authors.forename: Hee-Mock
authors.initials: HM
authors.lastname: Oh
authors.forename: Jung-Sook
authors.initials: JS
authors.lastname: Lee
mesh_terms: D000192:Actinomycetales / Q000737:chemistry / Q000145:classification* / Q000235:genetics / Q000378:metabolism; D007723:Korea; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D013045:Species Specificity
chemical_list: D012336:RNA, Ribosomal, 16S