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Int J Syst Evol Microbiol 58 (2008), 2359-2362; DOI  10.1099/ijs.0.65745-0
© 2008 International Union of Microbiological Societies

Anoxybacillus bogrovensis sp. nov., a novel thermophilic bacterium isolated from a hot spring in Dolni Bogrov, Bulgaria

Miroslava Atanassova1, Anna Derekova1, Rossica Mandeva1, Carsten Sjøholm2 and Margarita Kambourova1

1 Institute of Microbiology, Bulgarian Academy of Sciences, ‘Acad. G. Bonchev’ Str. 26, 1113 Sofia, Bulgaria
2 Novozymes, Krogshøjvej 36, 2880 Bagsværd, Denmark

Correspondence
Margarita Kambourova
margikam{at}microbio.bas.bg

A novel moderately thermophilic bacterium, designated strain BT 13T, was isolated from a geothermal water source in Dolni Bogrov, near Sofia, Bulgaria. The isolate was spore-forming, Gram-positive, facultatively anaerobic, alkalitolerant and heterotrophic, and was able to ferment a wide variety of carbon sources including D-glucose, sucrose, L-arabinose, L-rhamnose, starch, sorbitol and glycogen. Strain BT 13T grew optimally at pH 8.0 and 65 °C. Intracellular amylolytic activity was registered with glucose as the main product of starch hydrolysis. Phylogenetic analysis based on the 16S rRNA gene revealed that the strain belonged to the genus Anoxybacillus, the closest relatives being Anoxybacillus flavithermus and Anoxybacillus kamchatkensis. The DNA G+C content was 44.1 mol%. The fatty acid profile with a content of iso-branched fatty acids of around 80 % of the total fatty acids is similar to that of recognized Anoxybacillus species. On the basis of genotypic differentiation and significant differences in phenotypic characteristics, it was concluded that strain BT 13T represents a novel species of the genus Anoxybacillus, for which the name Anoxybacillus bogrovensis sp. nov. is proposed. The type strain is BT 13T (=DSM 17956T=NBIMCC 8427T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain BT 13T is AM409184.






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Copyright © 2008 by the International Union of Microbiological Societies.