title: Bacillus aurantiacus sp. nov., an alkaliphilic and moderately halophilic bacterium isolated from Hungarian soda lakes.
abstract: Three alkaliphilic and moderately halophilic strains designated K1-5T, K1-10 and B1-1, characterized by optimal growth at pH 9.0-10.0 and at 3-7 % (w/v) NaCl, were isolated from extremely shallow, alkaline soda lakes located in Hungary. Cells of the strains are Gram-positive, straight rods and form a central to subterminal, ellipsoidal endospore. The isolates are strictly aerobic, catalase-positive, oxidase-negative and contain a peptidoglycan of type A1 gamma based on meso-diaminopimelic acid. In strain K1-5T, menaquinone-7 (MK-7) is the predominant isoprenoid quinone and anteiso-C15 : 0 is the major cellular fatty acid. The DNA G+C content of strain K1-5T is 42.9 mol%. 16S rRNA gene-based phylogenetic analysis revealed that the strains exhibit levels of sequence similarity of less than 95.8 % to known Bacillus species. According to the polyphasic characterization, the strains represent a novel species, for which the name Bacillus aurantiacus sp. nov. is proposed. The type strain is K1-5T (=DSM 18675T =CCM 7447T =NCAIM B002265T).
authors.affiliation: Department of Microbiology, Eötvös Loránd University, Pázmány P. sétány 1/C, H-1117 Budapest, Hungary. bandrea@ludens.elte.hu
authors.forename: Andrea K
authors.initials: AK
authors.lastname: Borsodi
authors.forename: Károly
authors.initials: K
authors.lastname: Márialigeti
authors.forename: Gitta
authors.initials: G
authors.lastname: Szabó
authors.forename: Márton
authors.initials: M
authors.lastname: Palatinszky
authors.forename: Beatrix
authors.initials: B
authors.lastname: Pollák
authors.forename: Zsuzsa
authors.initials: Z
authors.lastname: Kéki
authors.forename: Attila L
authors.initials: AL
authors.lastname: Kovács
authors.forename: Peter
authors.initials: P
authors.lastname: Schumann
authors.forename: Erika M
authors.initials: EM
authors.lastname: Tóth
mesh_terms: D001407:Bacillus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism; D001482:Base Composition; D001483:Base Sequence; D017931:DNA Primers / Q000235:genetics; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000378:metabolism; D005618:Fresh Water / Q000382:microbiology; D005798:Genes, Bacterial; D006814:Hungary; D006863:Hydrogen-Ion Concentration; D046529:Microscopy, Electron, Transmission; D008969:Molecular Sequence Data; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D054712:Salinity; D013045:Species Specificity; D009626:Terminology as Topic
chemical_list: D017931:DNA Primers; D004269:DNA, Bacterial; D005227:Fatty Acids; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S