title: Arthrobacter roseus sp. nov., a psychrophilic bacterium isolated from an antarctic cyanobacterial mat sample.
abstract: Strain CMS 90rT, a red-pigmented bacterium, was isolated from a cyanobacterial mat sample from a pond located in McMurdo, Antarctica. Based on its chemotaxonomic and phylogenetic properties, strain CMS 90r(T) was identified as a member of group I of Arthrobacter. It shared 16S rDNA similarity of 98% with Arthrobacter oxydans ATCC 14358T and Arthrobacter polychromogenes ATCC 15216T, while DNA-DNA similarities determined for these three organisms were less than 70%. It also differed from all 17 reported Arthrobacter species with A3alpha-variant peptidoglycan in that it possessed a unique peptidoglycan (Lys-Gly-Ala3) and contained galactose, glucose, ribose and rhamnose as cell-wall sugars. These data and the presence of diagnostic phenotypic traits support the description of CMS 90r(T) as a novel species of Arthrobacter, for which the name Arthrobacter roseus sp. nov. is proposed. The type strain is strain CMS 90r(T) (= MTCC 3712T = DSM 14508T).
authors.forename: G S N
authors.initials: GSN
authors.lastname: Reddy
authors.forename: J S S
authors.initials: JSS
authors.lastname: Prakash
authors.forename: G I
authors.initials: GI
authors.lastname: Matsumoto
authors.forename: E
authors.initials: E
authors.lastname: Stackebrandt
authors.forename: S
authors.initials: S
authors.lastname: Shivaji
mesh_terms: D000864:Antarctic Regions; D001173:Arthrobacter / Q000737:chemistry* / Q000145:classification* / Q000235:genetics; D015373:Bacterial Typing Techniques; D018533:Biomass; D004275:DNA, Ribosomal / Q000032:analysis; D005618:Fresh Water / Q000382:microbiology*; D008969:Molecular Sequence Data; D010457:Peptidoglycan / Q000032:analysis; D010641:Phenotype; D010802:Phylogeny; D010860:Pigments, Biological / Q000378:metabolism; D012336:RNA, Ribosomal, 16S / Q000235:genetics*; D017422:Sequence Analysis, DNA; D013696:Temperature
chemical_list: D004275:DNA, Ribosomal; D010457:Peptidoglycan; D010860:Pigments, Biological; D012336:RNA, Ribosomal, 16S