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Bacillus cohnii sp. nov., a new, obligately alkaliphilic, oval-spore-forming Bacillus species with ornithine and aspartic acid instead of diaminopimelic acid in the cell wall.

Authors
Type
Published Article
Journal
International journal of systematic bacteriology
Publication Date
Volume
43
Issue
1
Pages
150–156
Identifiers
PMID: 8323866
Source
Medline
License
Unknown

Abstract

A group of 20 alkaliphilic Bacillus strains in which all strains revealed the same unique comination of properties--obligate alkaliphily, oval spores distending the sporangium, and ornithine and aspartic acid instead of diaminopimelic acid in the cell wall--was examined. Most of the strains had been isolated by a five-step enrichment and isolation procedure. The G+C content was determined to span a range from 33.5 to 35.0 mol%. Unsaturated fatty acids amounted to 17 to 28% of the total cellular fatty acids. Through DNA-DNA hybridization experiments 11 strains could be grouped in one species. Low homology values with the type strains of validly published Bacillus species with similar G+C contents suggest that these strains belong to a hitherto undescribed species for which the name Bacillus cohnii is proposed. The type strain of the new species is strain RSH (= DSM 6307).

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