| Bifidobacterium globosum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium globosum (Scardovi et al. 1969) Biavati, Scardovi, Moore, 1982.
Synonym: Bacillus pseudolongum subsp. globosum (Biavati et al. 1982) Yaeshima, Fujisawa, Mitsuoka 1992.
Bifidobacterium globosum (Scardovi et al. 1969) Biavati, Scardovi, Moore, 1982.
Synonym: Bacillus pseudolongum subsp. globosum (Biavati et al. 1982) Yaeshima, Fujisawa, Mitsuoka 1992.
Gram-positive slightly curved, short rod with rounded or tapered ends, occuring in
pairs, short chains and clumps. Non-motile. Non-spore-forming.
pairs, short chains and clumps. Non-motile. Non-spore-forming.
Colonies smooth, convex, entire edges, gray or white, shiny, punctiform on blood agar.
Heavy turbidity and a “breadcrumb” sediment are produced in peptone-yeast extract
broth with carbohydrates that are not fermented. Growth factors are required:
pantothenate, riboflavin, thiamine and folic acid. Strictly anaerobic. Optimum growth
temperature is 39-40 ºC. Can grow at 45 ºC, but not at 20 ºC. Optimum pH 6.5-7.0 ;
weak growth at pH 6.0 and no growth at pH 8.
Heavy turbidity and a “breadcrumb” sediment are produced in peptone-yeast extract
broth with carbohydrates that are not fermented. Growth factors are required:
pantothenate, riboflavin, thiamine and folic acid. Strictly anaerobic. Optimum growth
temperature is 39-40 ºC. Can grow at 45 ºC, but not at 20 ºC. Optimum pH 6.5-7.0 ;
weak growth at pH 6.0 and no growth at pH 8.
Isolated from bovine and sheep rumen and faeces of piglets, rabbits, lambs, calves, chickens, rats, human infant and from sewage.
Undetermined.
- Biavati B, Mattarelli P, 2012. Genus I. Bifidobacterium Orla-Jensen 1924. In: Parte et al. (ed). Bergey’s manual of systematic
bacteriology: The Actinobacteria, Part A and B. Springer, New York, 171-206. - Rogosa M. 1975. Genus III. Bifidobacterium Orla-Jensen 1924. In: Buchanan RE & Gibbons NE (ed). Bergey’s Manual of
Determinative Bacteriology, Eight Edition, The Williams & Wilkins Company, Baltimore, 669-676. - Yaeshima T, Fujisawa T, Mitsuoka T, 1992. Bifidobacterium globosum, subjective synonym of Bifidobacterium pseudolongum, and
description of Bifidobacterium pseudolongum subsp. pseudolongum comb. nov. and Bifidobacterium pseudolongum subsp.
globosum comb. nov. Syst Appl Microbiol 15, 380-385. - Biavati B, Scardovi V, Moore WEC, 1982. Electrophoretic patterns of proteins in the genus Bifidobacterium and proposal of four new
species. Int J Syst Bacteriol 32, 358-373.
Positive results for acid production from amylopectin, dextrin, D-galactose, glucose (without gas production), glycogen, D-lactose,
maltose, melibiose, alpha-methyl-glucoside, raffinose, D-ribose, starch and sucrose.
Negative results for catalase, indole production, nitrate reduction, acid production from adonitol, amygdalin, D-arabinose, cellobiose,
dulcitol, erythritol, esculin, D- and L-fucose, gluconate, D-glucuronate, glycerol, inulin, inositol, D-mannitol, D-mannose, melezitose,
alpha-methyl-D-mannoside, pectin, porcine gastric mucin, rhamnose, D-sorbitol and trehalose.
Ammonia is not produced from arginine.
Variable results for acid production from amylose, L-arabinose, D-fructose, D-galactosamine, D-glucosamine, and salicin (weak), xylan
and xylose.
maltose, melibiose, alpha-methyl-glucoside, raffinose, D-ribose, starch and sucrose.
Negative results for catalase, indole production, nitrate reduction, acid production from adonitol, amygdalin, D-arabinose, cellobiose,
dulcitol, erythritol, esculin, D- and L-fucose, gluconate, D-glucuronate, glycerol, inulin, inositol, D-mannitol, D-mannose, melezitose,
alpha-methyl-D-mannoside, pectin, porcine gastric mucin, rhamnose, D-sorbitol and trehalose.
Ammonia is not produced from arginine.
Variable results for acid production from amylose, L-arabinose, D-fructose, D-galactosamine, D-glucosamine, and salicin (weak), xylan
and xylose.
(c) Costin Stoica
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