Bifidobacterium reuteri
Taxonomy
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Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,  
Bifidobacterium reuteri
Endo, Futagawa-Endo, Schumann, Pukall, Dicks, 2012.
Gram-positive irregular rods with rounded or tapered end, usually swollen and
branched, 03-1.0 / 1.5-6.0 µm, occurring singly or in pairs. Non-motile.
Colonies are beige, smooth, 1-2 mm in diameter after 2 days of anaerobic incubation
on MRS agar supplemented with 50 mg/l L-cysteine. Growth temperature 35-37 ºC.
No growth at 30 or 45 ºC. Grows at pH 5.0-7.0. Facultatively anaerobic.
Isolated from faeces of common marmoset, South Africa.
Undetermined.
  1. Endo A, Futagawa-Endo Y, Schumann P, Pukall R, Dicks LMT, 2012.  Bifidobacterium reuteri sp. nov., Bifidobacterium callitrichos
    sp. nov., Bifidobacterium saguini sp. nov., Bifidobacterium stellenboschense sp. nov. and Bifidobacterium biavatii sp. nov. isolated
    from faeces of common marmoset (Callithrix jacchus) and red-handed tamarin (Saguinus midas). Syst Appl Microbiol 35, 92-97.
  2. Modesto M, Satti M, Watanabe K, Puglisi E, Morelli L, Huang C-H, Liou J-S, Miyashita M, Tamura T, Saito S, Mori K, Huang L, Sciavilla
    P, Sandri C, Spiezio C, Vitali F, Cavalieri D, Perpetuini G, Tofalo R, Bonetti A, Arita M and Mattarelli P, 2019. Characterization of
    Bifidobacterium species in faeces of the Egyptian fruit bat: Description of B. vespertilionis sp. nov. and B. rousetti sp. nov. Syst Appl
    Microbiol 42: 126017.
Description is based mostly on API 50 CHL (bioMerieux) results.

Positive results for alkaline phosphatase, arginine arylamidase, alpha- and beta-galactosidase, alpha- and beta-glucosidase,
histidine arylamidase, leucine arylamidase, phenylalanine arylamidase (weak), proline arylamidase, tyrosine arylamidase, acid
production from arbutin (weakly), cellobiose (weakly), D-fructose, gentibiose, gluconate (weakly), D-glucose, glycogen, lactose,
maltose, melezitose (weakly), melibiose, raffinose, salicin, starch, sucrose, trehalose (weakly), turanose (weakly) and D-xylose.

Negative results for arginine dihydrolase, alanine arylamidase, catalase, alpha-fucosidase, beta-glucuronidase, glycine arylamidase,
indole production, nitrate reduction, N-acetyl-beta-glucosaminidase, serine arylamidase, urease, acid production from L- and
D-arabinose, dulcitol, esculin, erythritol, D- and L-fucose, D-galactose, glycerol, methyl alpha-D-glucopyranoside,
N-acetylglucosamine, inositol, inulin, D-lyxose, D-mannitol, D-mannose, methyl alpha-D-mannopyranoside, rhamnose, D-ribose,
D-sorbitol, L-sorbose, tagatose, L-xylose, xylan, xylitol and methyl beta-D-xylopyranoside.

Variable and weak results for acid production from amygdalin.
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