| Bifidobacterium angulatum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium angulatum Scardovi and Crociani 1974.
Bifidobacterium angulatum Scardovi and Crociani 1974.
Gram-positive cells, 0.6-0.7 x 1.5-3.0 µm, generally and characteristically forming V
(angular) or palisade arrangements similar to corynebacteria. Branching is absent
and cells are rarely enlarged at the extremities; this morphological type is unique
among bifidobacteria. Non-motile. Non-spore-forming.
(angular) or palisade arrangements similar to corynebacteria. Branching is absent
and cells are rarely enlarged at the extremities; this morphological type is unique
among bifidobacteria. Non-motile. Non-spore-forming.
Colonies are pulvinate, smooth, entire margins, porcelain white, glistening, soft
consistency. Anaerobic. Growth temperature 28-42 ºC, optimum 39-40 ºC. Grows at
pH 6.3-7.2, optimum pH 6.5-6.9; nogrowth at pH 8.0.
consistency. Anaerobic. Growth temperature 28-42 ºC, optimum 39-40 ºC. Grows at
pH 6.3-7.2, optimum pH 6.5-6.9; nogrowth at pH 8.0.
Isolated from faeces of human adults and 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. - Scardovi V, Crociani F, 1974. Bifidobacterium catenulatum, Bifidobacterium dentium, and Bifidobacterium angulatum: three new
species and their deoxyribonucleic acid homology relationships. Int J Syst Bacteriology 24(1), 6-20. - Morita H, Nakano A, Onoda H, Toh H, Oshima K et al., 2011. Bifidobacterium kashiwanohense sp. nov., isolated from healthy infant
faeces. Int J Syst Evol Microbiol 61, 2610-2615.
Positive results for alpha- and beta-galactosidase, alpha- and beta-glucosidase, leucine arylamidase, Voges-Proskauer test acid
production from amylopectin, L-arabinose, dextrin, D-fructose, D-galactose, D-glucose, inulin, D-lactose, maltose, melibiose, raffinose,
D-ribose, salicin, starch, sucrose and D-xylose.
Negative results for acid and alkaline phosphatase, catalase, cystine arylamidase, esterase lipase (C8), esterase (C4),
alpha-fucosidase, beta-glucuronidase, gelatin liquefaction, indole production, lipase (C14), alpha-mannosidase, nitrate reduction,
N-acetyl-beta-glucosaminidase, naphthol-AS-BI-phosphohydrolase, trypsin, alpha-chymotrypsin, urease, valine arylamidase, acid
production from amylose, cellobiose, dextran, L- and D-fucose, glycerol, D-glucuronate, D-mannitol, D-mannose, melezitose, pectin,
porcine gastric mucin, rhamnose, trehalose and xylan.
Variable results for acid production from D-galactosamine, gluconate, D-glucosamine and D-sorbitol.
production from amylopectin, L-arabinose, dextrin, D-fructose, D-galactose, D-glucose, inulin, D-lactose, maltose, melibiose, raffinose,
D-ribose, salicin, starch, sucrose and D-xylose.
Negative results for acid and alkaline phosphatase, catalase, cystine arylamidase, esterase lipase (C8), esterase (C4),
alpha-fucosidase, beta-glucuronidase, gelatin liquefaction, indole production, lipase (C14), alpha-mannosidase, nitrate reduction,
N-acetyl-beta-glucosaminidase, naphthol-AS-BI-phosphohydrolase, trypsin, alpha-chymotrypsin, urease, valine arylamidase, acid
production from amylose, cellobiose, dextran, L- and D-fucose, glycerol, D-glucuronate, D-mannitol, D-mannose, melezitose, pectin,
porcine gastric mucin, rhamnose, trehalose and xylan.
Variable results for acid production from D-galactosamine, gluconate, D-glucosamine and D-sorbitol.
(c) Costin Stoica
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