| Bifidobacterium thermophilum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium thermophilum Mitsuoka 1969.
Synonym: Bacillus ruminale Scardovi, Trovatelli, Crociana and Sgorbati 1969.
Bifidobacterium thermophilum Mitsuoka 1969.
Synonym: Bacillus ruminale Scardovi, Trovatelli, Crociana and Sgorbati 1969.
Slender rods, 3-8 µm, slightly curved often with tapered ends, protuberances or
irregularities, branchings rare and arranged singly or in pairs; aged cells often
banded and take Gram-stain irregularly.
irregularities, branchings rare and arranged singly or in pairs; aged cells often
banded and take Gram-stain irregularly.
Pantothenate, pyridoxine and riboflavin are required for growth. Anerobic. Optimum
growth temperature is 36-38 ºC. Can grow at 25-49 ºC and pH 6.5-7.0. No growth at
pH 5.0 or pH 8.0.
growth temperature is 36-38 ºC. Can grow at 25-49 ºC and pH 6.5-7.0. No growth at
pH 5.0 or pH 8.0.
Isolated from bovine rumen, faeces of swine, chickens, suckling calves and baby, 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. - Pechar R, Killer J, Salmonova H, Geigerova M, Svejstil R, Svec P, Sedlacek I, Rada V and Benada O, 2017. Bifidobacterium apri sp.
nov., a thermophilic actinobacterium isolated from the digestive tract of wild pigs. Int J Syst Bacteriol 67, 2349-2356.
Positive results for arginine arylamidase, esterase C4, esterase lipase C8 (weak), alpha- and beta beta-galactosidase, alpha- and
beta-glucosidase, glycine arylamidase, histidine arylamidase, leucine arylamidase, naphtol-AS-BI-phosphohydrolase (weak),
phosphoamidase, proline arylamidase, serine arylamidase, tyrosine arylamidase, valine arylamidase (weak), acid production from
amylose, amylopectin, D-fructose, D-galactosamine, D-galactose, glucose, glycogen (weak), maltose, melibiose, raffinose, starch and
sucrose.
Negative results for arginine dihydrolase, acid and alkaline phosphatase, alanine arylamidase, alpha-arabinosidase, catalase, cystine
arylamidase, alpha-fucosidase, beta-glucuronidase, gelatin hydrolysis, indole production, lipase, alpha-mannosidase, nitrate
reduction, oxidase, N-acetyl-beta-glucosaminidase, phenylalanine arylamidase, trypsin, chymotrypsin,urease, acid production from
adonitol, D-arabinose, D- and L-arabitol, arbutin, dextran, dulcitol, erythritol, L- and D-fucose, gentibiose, gluconate, D-glucuronate,
glycerol, inositol, 2- and 5-ketogluconate, D-lyxose, D-mannitol, D-mannose, alpha-methyl-D-mannoside, methyl
alpha-D-glucopyranoside, methyl beta-D-xylopyranoside, porcine gastric mucin, rhamnose, D-ribose, D-sorbitol, D-sorbose,
D-tagatose, xylitol and L-xylose.
Variable results for acid production from amygdalin, L-arabinose, cellobiose, esculin, D-glucosamine, inulin, D-lactose, melezitose,
pectin, salicin, trehalose, D-xylose and xylan.
beta-glucosidase, glycine arylamidase, histidine arylamidase, leucine arylamidase, naphtol-AS-BI-phosphohydrolase (weak),
phosphoamidase, proline arylamidase, serine arylamidase, tyrosine arylamidase, valine arylamidase (weak), acid production from
amylose, amylopectin, D-fructose, D-galactosamine, D-galactose, glucose, glycogen (weak), maltose, melibiose, raffinose, starch and
sucrose.
Negative results for arginine dihydrolase, acid and alkaline phosphatase, alanine arylamidase, alpha-arabinosidase, catalase, cystine
arylamidase, alpha-fucosidase, beta-glucuronidase, gelatin hydrolysis, indole production, lipase, alpha-mannosidase, nitrate
reduction, oxidase, N-acetyl-beta-glucosaminidase, phenylalanine arylamidase, trypsin, chymotrypsin,urease, acid production from
adonitol, D-arabinose, D- and L-arabitol, arbutin, dextran, dulcitol, erythritol, L- and D-fucose, gentibiose, gluconate, D-glucuronate,
glycerol, inositol, 2- and 5-ketogluconate, D-lyxose, D-mannitol, D-mannose, alpha-methyl-D-mannoside, methyl
alpha-D-glucopyranoside, methyl beta-D-xylopyranoside, porcine gastric mucin, rhamnose, D-ribose, D-sorbitol, D-sorbose,
D-tagatose, xylitol and L-xylose.
Variable results for acid production from amygdalin, L-arabinose, cellobiose, esculin, D-glucosamine, inulin, D-lactose, melezitose,
pectin, salicin, trehalose, D-xylose and xylan.
(c) Costin Stoica
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