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Int J Syst Evol Microbiol 55 (2005), 2551-2554; DOI  10.1099/ijs.0.63812-0
© 2005 International Union of Microbiological Societies

Bacillus ruris sp. nov., from dairy farms

Marc Heyndrickx1, Patsy Scheldeman1, Gillian Forsyth2, Liesbeth Lebbe3, Marina Rodríguez-Díaz2, Niall A. Logan2 and Paul De Vos3

1 Department of Animal Product Quality, Centre for Agricultural Research-Ghent, Brusselsesteenweg 370, B-9090 Melle, Belgium
2 Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, UK
3 Vakgroep BFM WE10V, Laboratorium voor Microbiologie, Universiteit Gent, K. L. Ledeganckstraat 35, B-9000 Gent, Belgium

Correspondence
Marc Heyndrickx
M.Heyndrickx{at}clo.fgov.be

Four novel ellipsoidal spore-forming Bacillus isolates with swollen sporangia, isolated from raw milk and feed concentrate, showed a high level of similarity in SDS-PAGE, fatty acid methyl esters and routine phenotypic tests. However, 16S rRNA gene sequence comparisons showed that this taxon was different from other related Bacillus species, and only a low level of DNA relatedness was found with the closest phylogenetic and phenotypic relative, Bacillus galactosidilyticus. This taxon could be differentiated from B. galactosidilyticus on the basis of morphological differences, stronger acid reactions with a wide range of substrates after 48 h incubation, and qualitative and quantitative differences in fatty acid content. On the basis of these data, a novel species, Bacillus ruris sp. nov., is proposed, with LMG 22866T (=DSM 17057T) as the type strain.

Published online ahead of print on 9 September 2005 as DOI 10.1099/ijs.0.63812-0.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain LMG 22866T is AJ535639.

A UPGMA clustering of normalized SDS-PAGE patterns of whole-cell proteins of isolates belonging to Bacillus ruris sp. nov. and the Bacillus galactosidilyticus type strain and a table showing the cellular fatty acid methyl ester profiles of strains of B. ruris sp. nov. and of B. galactosidilyticus are available as supplementary material in IJSEM Online.






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Copyright © 2005 by the International Union of Microbiological Societies.