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 A17 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 =5DSM 18675T =CCM 7447T =NCAIM B002265T).
|Number of pages||7|
|Journal||International journal of systematic and evolutionary microbiology|
|Publication status||Published - Apr 1 2008|
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics