Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium commune Praet, Meeus, Cnockaert, Aerts, Smagghe, Vandamme 2015.
Gram-positive bifurcated and elongated cocci, 0.5-1 x 2 µm. Non-spore-forming.
Non-motile.
Colonies are white to beige, shiny, 1 mm in diameter after 2 days of incubation under
anaerobic or microaerobic conditions on MRS agar. Grows at temperature 10-40 ºC
(optimum 37 ºC; not growing at 45 ºC), pH 5.0-7.0 (not at pH 4.0 or 9.0). Anaerobic;
growth occurs on agar under microaerophilic conditions.
Isolated from the gut of a bumblebee (Bombus lapidarius), Belgium.
Commensal with alpha-haemolytic activity.
- Praet J, Meeus I, Cnockaert M, Aerts M, Smagghe G, Vandamme P, 2015. Bifidobacterium commune sp. nov. isolated from the
bumble bee gut. Antonie van Leeuwenhoek. DOI 10.1007/s10482-015-0425-3.
- Alberoni D, Gaggia F, Baffoni L, Modesto MM, Biavati B, Di Gioia D, 2019. Bifidobacterium xylocopae sp. nov. and Bifidobacterium
aemilianum sp. nov., from the carpenter bee (Xylocopa violacea) digestive tract. Syst Appl Microbiol 42, 205-216.
Description is based mostly on API 50 CHL, API ZYM, and RAPID ID32 results.
Positive results for acid phosphatase, alpha-galactosidase, beta-galactosidase, alpha-glucosidase, beta-glucosidase, leucine
arylamidase, naphtol-AS-BI-phosphohydrolase, acid production from amygdalin, arbutin, esculin, D-galactose, D-glucose (without gas
production), 5-ketogluconate (weak reaction), melibiose, methyl alpha-D-glucopyranoside, raffinose and salicin.
Negative results for alkaline phosphatase, alanine arylamidase, cysteine arylamidase, alpha-chymotrypsin, catalase, esterase C4,
esterase lipase C8, alpha-fucosidase, gelatinase, glycine arylamidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase, histidine
arylamidase, lipase C14, alpha-mannosidase, oxidase, proline arylamidase, serine arylamidase, tyrosine arylamidase, trypsin, valine
arylamidase, acid production from D-adonitol, D- and L-arabitol, L-arabinose, cellobiose, dulcitol, erythritol, D-fucose, L-fucose,
gluconate, glycogen, gentiobiose, glycerol, 2-ketogluconate, inositol, inulin, lactose, D-lyxose, maltose, D-mannitol, D-mannose,
melezitose, methyl alpha-D-mannopyranoside, N-acetylglucosamine, rhamnose, D-ribose, L-sorbose, D-sorbitol, starch, trehalose,
tagatose, turanose, methyl beta-D-xylopyranoside, xylitol and D-xylose.
Variable results for acid production from D-fructose and sucrose.
(c) Costin Stoica