title: Marinimicrobium haloxylanilyticum sp. nov., a new moderately halophilic, polysaccharide-degrading bacterium isolated from Great Salt Lake, Utah.
abstract: A new moderately halophilic, strictly aerobic, Gram-negative bacterium, strain SX15(T), was isolated from hypersaline surface sediment of the southern arm of Great Salt Lake (Utah, USA). The strain grew on a number of carbohydrates and carbohydrate polymers such as xylan, starch, carboxymethyl cellulose and galactomannan. The strain grew at salinities ranging from 2 to 22% NaCl (w/v). Optimal growth occurred in the presence of 7-11% NaCl (w/v) at a temperature of 35°C and a pH of 6.7-8.2. Major whole-cell fatty acids were C16:0 (30.5%), C18:0 (14.8%), C18:1ω7c (13.1%) and C12:0 (7.8%). The G+C content of the DNA was 60 ± 0.5 mol%. By 16S rRNA gene sequence analysis, strain SX15(T) was shown to be affiliated to members of the gammaproteobacterial genus Marinimicrobium with pair wise identity values of 92.9-94.6%. The pheno- and genotypic properties suggest that strain SX15(T) represents a novel species of the genus Marinimicrobium for which the name Marinimicrobium haloxylanilyticum is proposed. The type strain is SX15(T) (= DSM 23100(T) = CCUG 59572(T)).
authors.affiliation: Department of Biological Sciences, Aarhus University, Denmark.
authors.forename: Mette Fogh
authors.initials: MF
authors.lastname: Møller
authors.forename: Kasper Urup
authors.initials: KU
authors.lastname: Kjeldsen
authors.forename: Kjeld
authors.initials: K
authors.lastname: Ingvorsen
mesh_terms: D034241:Alteromonadaceae / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification* / Q000502:physiology; D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D024881:Drug Resistance, Bacterial; D020459:Genes, rRNA; D019015:Geologic Sediments / Q000382:microbiology*; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000032:analysis; D054712:Salinity; D055049:Salt Tolerance; D012965:Sodium Chloride / Q000378:metabolism; D014589:Utah
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride