| Bifidobacterium pseudolongum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium pseudolongum Mitsuoka 1969.
Synonym: Bacillus pseudolongum subsp. pseudolongum (Mitsuoka 1969) Yaeshima, Fujisawa, Mitsuoka 1992.
Bifidobacterium pseudolongum Mitsuoka 1969.
Synonym: Bacillus pseudolongum subsp. pseudolongum (Mitsuoka 1969) Yaeshima, Fujisawa, Mitsuoka 1992.
Gram-positive slightly curved, short rod with rounded or tapered ends, usually singly.
Non-motile. Non-spore-forming.
Non-motile. Non-spore-forming.
Colonies smooth, convex, entire edges, cream to white, glistening, soft, easy
emulsified. In fuid cultures produce easily dispersible compact sediment;
supernatant often clear. 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.
emulsified. In fuid cultures produce easily dispersible compact sediment;
supernatant often clear. 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 the faeces of pigs, dogs, bulls, calves, chickens, guinea pigs, hamsters and rats.
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.
Positive results for acid production from amylose, amylopectin, L-arabinose, dextrin, D-fructose, D-galactose, glucose (without gas
production), glycogen, maltose, melibiose, raffinose, D-ribose, starch, sucrose and xylose.
Negative results for catalase, indole production, nitrate reduction, acid production from adonitol, amygdalin, D-arabinose, dulcitol,
erythritol, esculin, D- and L-fucose, D-galactosamine, gluconate, D-glucuronate, glycerol, alpha-methyl-glucoside, inulin, inositol,
D-mannitol, alpha-methyl-D-mannoside, pectin, porcine gastric mucin, rhamnose, D-sorbitol, trehalose and xylan.
Ammonia is not produced from arginine.
Variable results for acid production from cellobiose, D-glucosamine, D-lactose, D-mannose (weak), melezitose and salicin (weak).
production), glycogen, maltose, melibiose, raffinose, D-ribose, starch, sucrose and xylose.
Negative results for catalase, indole production, nitrate reduction, acid production from adonitol, amygdalin, D-arabinose, dulcitol,
erythritol, esculin, D- and L-fucose, D-galactosamine, gluconate, D-glucuronate, glycerol, alpha-methyl-glucoside, inulin, inositol,
D-mannitol, alpha-methyl-D-mannoside, pectin, porcine gastric mucin, rhamnose, D-sorbitol, trehalose and xylan.
Ammonia is not produced from arginine.
Variable results for acid production from cellobiose, D-glucosamine, D-lactose, D-mannose (weak), melezitose and salicin (weak).
(c) Costin Stoica
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