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Int J Syst Evol Microbiol. 2009 Aug;59(Pt 8):2020-4. doi: 10.1099/ijs.0.002915-0. Epub 2009 Jun 30.

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

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Czech University of Life Sciences, Department of Microbiology, Nutrition and Dietetics, Kamýcká 129, Prague 6-Suchdol, 165 21, Czech Republic.


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).

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