title: Sphingomonas alaskensis sp. nov., a dominant bacterium from a marine oligotrophic environment.
abstract: Seven Gram-negative strains, isolated in 1990 from a 10(6)-fold dilution series of seawater from Resurrection Bay, a deep fjord of the Gulf of Alaska, were identified in a polyphasic taxonomic study. Analysis of 16S rDNA sequences and DNA-homology studies confirmed the phylogenetic position of all strains in the genus Sphingomonas and further indicated that all of the strains constitute a single homogeneous genomic species, distinct from all validly described Sphingomonas species. The ability to differentiate the species, both phenotypically and chemotaxonomically, from its nearest neighbours justifies the proposal of a new species name, Sphingomonas alaskensis sp. nov., for this taxon. Strain LMG 18877T (= RB2256T = DSM 13593T) was selected as the type strain.
authors.forename: M
authors.initials: M
authors.lastname: Vancanneyt
authors.forename: F
authors.initials: F
authors.lastname: Schut
authors.forename: C
authors.initials: C
authors.lastname: Snauwaert
authors.forename: J
authors.initials: J
authors.lastname: Goris
authors.forename: J
authors.initials: J
authors.lastname: Swings
authors.forename: J C
authors.initials: JC
authors.lastname: Gottschal
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D020578:Sphingomonas / Q000737:chemistry / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S