Bifidobacterium aerophilum
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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium aerophilum Michelini, Modesto, Filippini, Spiezio, Sandri, Biavati, Pisi, Mattaraelli 2016.
Gram-positive rods of various shapes in TPY broth and form a branched structure
with a ‘Y’ on both sides. Non-motile. Non-spore-forming.
Colonies are circular with entire margins, white, opaque, smooth and 1.0-2.0 mm in
diameter on TPY agar after 3 days of anaerobic incubation. Non-haemolytic. Growth
temperature 25-50 ºC, optimum 40 ºC. Grows at pH 4.0-7.5, optimum pH 6.0.
Facultatively anaerobic.
Isolated from the faeces of an adult cotton-top tamarin (Saguinus oedipus L.).
Undetermined.
- Michelini S, Modesto M, Filippini G, Spiezio C, Sandri C, Biavati B, Pisi A, Mattarelli P 2016. Bifidobacterium aerophilum sp. nov.,
Bifidobacterium avesanii sp. nov. and Bifidobacterium ramosum sp. nov.: three noval taxa from the faeces of cotton-top tamarin
(Saguinus oedipus L.). Syst Appl Microbiol 39: 229-236.
Positive results for alanine arylamidase, alkaline phosphatase, arginine arylamidase, alpha-arabinosidase, alpha- and beta-
galactosidase, alpha- and beta-glucosidase, glycine arylamidase, beta-glucuronidase (weakly), N-acetyl-beta-glucosaminidase,
histidine arylamidase, leucine arylamidase, phenylalanine arylamidase, proline arylamidase, serine arylamidase, tyrosine
arylamidase, acid production from arbutin, aesculin, D-fructose, D-glucose, D-lactose, D-mannose, melibiose (weakly), raffinose
(weakly) and sucrose.
Negative results for arginine dihydrolase, catalase, indole production, nitrate reduction, oxidase, urease, acid production from
D-adonitol, amygdalin, D- and L-arabinose, D-arabitol, cellobiose, erythritol, D- and L-fucose, D-galactose, gentibiose, gluconate,
glycogen, glycerol, inositol, inulin, 2- and 5-ketogluconate, D-lyxose, maltose, D-mannitol, melezitose, methyl
alpha-D-mannopyranoside, N-acetylglucosamine, rhamnose, D-sorbitol, sorbose, starch, D-tagatose, trehalose, methyl
beta-D-xylopyranoside, xylitol, D- and L-xylose.
Variable results for alpha-fucosidase (weakly), acid production from L-arabitol, dulcitol, methyl alpha-D-glucopyranoside (weakly),
D-ribose, salicin (weakly), and D-turanose.
(c) Costin Stoica