| Bifidobacterium mongoliense |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium mongoliense Watanabe, Makino, Sasamoto, Kudo, Fujimoto and Demberel 2009.
Bifidobacterium mongoliense Watanabe, Makino, Sasamoto, Kudo, Fujimoto and Demberel 2009.
Gram-positive rods of various shapes, 0.4-0.6 / 0.8-2.0 µm, with rounded or tapered
ends, sometimes curved, swollen and branched. Non-motile. Non-spore-forming.
ends, sometimes curved, swollen and branched. Non-motile. Non-spore-forming.
Colonies are white, convex, opaque, smooth, 2-3 mm in diameter on modified MRS
agar (glucose replaced with 1 % lactose) supplemented with 0.001 % sodium azide
and 0.001 % cycloheximide and incubated anaerobically at 30 ºC for 5 days; pinpoint
colonies (0.2–0.4 mm in diameter) are formed under aerobic conditions after 2 days
incubation. Growth temperature 15-35 ºC, optimum 25-30 ºC; no growth at 10 or 40
ºC. pH range is 4.5-8.0; optimum pH 6.5-7.0. Facultatively anaerobic.
agar (glucose replaced with 1 % lactose) supplemented with 0.001 % sodium azide
and 0.001 % cycloheximide and incubated anaerobically at 30 ºC for 5 days; pinpoint
colonies (0.2–0.4 mm in diameter) are formed under aerobic conditions after 2 days
incubation. Growth temperature 15-35 ºC, optimum 25-30 ºC; no growth at 10 or 40
ºC. pH range is 4.5-8.0; optimum pH 6.5-7.0. Facultatively anaerobic.
Isolated from airag, a traditional fermented mare milk from Mongolia.
Undetermined.
- Watanabe K, Makino H, Sasamoto M, Kudo Y, Fujimoto J and Demberel S 2009. Bifidobacterium moongoliense sp. nov., from airag,
a traditional fermented mare’s milk from Mongolia . Int J Syst Evol Microbiol 59, 1535-1540.
Description is based mostly on API 50 CHL results
Positive results for esculin hydrolysis, acid production from L-arabinose, D-galactose, D-glucose, glycogen, methyl
alpha-D-glucopyranoside, lactose, maltose, melibiose, raffinose, starch, sucrose and turanose.
Negative results for catalase, oxidase, acid production from D-adonitol, D- and L-arabitol, D-arabinose, dulcitol, erythritol, esculin, D-
and L-fucose, D-fructose, glycerol, N-acetylglucosamine, inulin, inositol, 2- and 5-ketogluconate, D-lyxose, D-mannitol, D-mannose,
melezitose, methyl alpha-D-mannopyranoside, rhamnose, D-sorbitol, L-sorbose, tagatose, trehalose, methyl beta-D-xylopyranoside,
xylitol and D-xylose.
Variable results for acid production from amygdalin, arbutin, cellobiose, gluconate, gentiobiose, D-ribose and salicin.
Positive results for esculin hydrolysis, acid production from L-arabinose, D-galactose, D-glucose, glycogen, methyl
alpha-D-glucopyranoside, lactose, maltose, melibiose, raffinose, starch, sucrose and turanose.
Negative results for catalase, oxidase, acid production from D-adonitol, D- and L-arabitol, D-arabinose, dulcitol, erythritol, esculin, D-
and L-fucose, D-fructose, glycerol, N-acetylglucosamine, inulin, inositol, 2- and 5-ketogluconate, D-lyxose, D-mannitol, D-mannose,
melezitose, methyl alpha-D-mannopyranoside, rhamnose, D-sorbitol, L-sorbose, tagatose, trehalose, methyl beta-D-xylopyranoside,
xylitol and D-xylose.
Variable results for acid production from amygdalin, arbutin, cellobiose, gluconate, gentiobiose, D-ribose and salicin.
(c) Costin Stoica
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