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Int J Syst Evol Microbiol 59 (2009), 2020-2024; DOI  10.1099/ijs.0.002915-0
© 2009 International Union of Microbiological Societies

Bifidobacterium bombi sp. nov., from the bumblebee digestive tract

J. Killer1,2, J. Kopecny2, J. Mrázek2, V. Rada1, O. Benada3, I. Koppová2, J. Havlík1 and J. Straka4

1 Czech University of Life Sciences, Department of Microbiology, Nutrition and Dietetics, Kamycká 129, Prague 6 – Suchdol, 165 21, Czech Republic
2 Institute of Animal Physiology and Genetics v.v.i., Academy of Sciences of the Czech Republic, Vídenská 1083, Prague 4 – Krc, 142 20, Czech Republic
3 Institute of Microbiology v.v.i., Academy of Sciences of the Czech Republic, Vídenská 1083, Prague 4 – Krc, 142 20, Czech Republic
4 Charles University in Prague, Department of Zoology, Albertov 6, Prague 2, 128 43, Czech Republic

Correspondence
J. Kopecny
kopecnyj{at}iapg.cas.cz

Gram-positive-staining, anaerobic, non-spore-forming, lactate- and acetate-producing bacterial strains were isolated from the digestive tracts of different bumblebee species (Bombus lucorum, Bombus pascuorum and Bombus lapidarius). All of the isolates produced fructose-6-phosphate phosphoketolase activity. A representative strain, BluCI/TPT, was characterized further. Cells of strain BluCI/TPT showed occasional bifurcation and irregular constrictions. The bacterium utilized a wide range of carbohydrates. Glucose was fermented to acetate and lactate. The DNA base composition was 47.2 mol% G+C. Complete 16S rRNA and partial hsp60 gene sequences were obtained and phylogenetic relationships were determined. Strain BluCI/TPT and related isolates were located in the actinobacterial cluster and were closely related to the genera Bifidobacterium, Scardovia, Aeriscardovia and Parascardovia. The results presented support the proposal of a novel species to accommodate strain BluCI/TPT, with the name Bifidobacterium bombi sp. nov.; the type strain is BluCI/TPT (=DSM 19703T =ATCC BAA-1567T).

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA and partial hsp60 gene sequences of strain BluCI/TPT are EU127549 and EU869281.






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