Bacillus aurantiacus sp. nov., an alkaliphilic and moderately halophilic bacterium isolated from Hungarian soda lakes

Andrea K. Borsodi, Károly Márialigeti, Gitta Szabó, Márton Palatinszky, Beatrix Pollák, Zsuzsa Kéki, Attila L. Kovács, Peter Schumann, Erika M. Tóth

Research output: Contribution to journalArticle

25 Citations (Scopus)

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 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).

Original languageEnglish
Pages (from-to)845-851
Number of pages7
JournalInternational journal of systematic and evolutionary microbiology
Volume58
Issue number4
DOIs
Publication statusPublished - Apr 1 2008

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

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