Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium criceti Lugli, Mangifesta, Duranti, Anzalone, Milani, Mancabelli, Alessandri, Turroni, Ossiprandi, van Sinderen and
Gram-positive, small rods. Non-spore-forming. Non-motile.
Colonies are white, 1.0-2.5 mm in diameter on MRS agar after 48 h of anaerobic
incubation at 37 ºC. Grows at temperature 25-42 ºC (optimum 30-40 ºC), pH 3.5-6.0
(optimum pH 6.0). Facultatively anaerobic.
Isolated from the stool sample of of an European hamster (Cricetus cricetus).
- Lugli GA, Mangifesta M, Duranti S, Anzalone R, Milani C, Mancabelli R, Alessandri G, Turroni F, Ossiprandi MC, van Sinderen D and
Ventura M, 2018. Phylogenetic classification of six novel species belonging to the genus Bifidobacterium comprising
Bifidobacterium anseris sp. nov., Bifidobacterium criceti sp. nov., Bifidobacterium imperatoris sp. nov., Bifidobacterium italicum sp.
nov., Bifidobacterium margollessi sp. nov. and Bifidobacterium parmae sp. nov. Syst Appl Microbiol 41: 173-183.
Positive results for alkaline phosphatase, arginine arylamidase, arginine dihydrolase,
serine arylamidase, acid production from D-galactose (weakly), D-glucose, glycogen, inulin (weakly), D-lactose (weakly), D-mannitol
(weakly), maltose, D-mannose (weakly), melibiose (weakly), N-acetylglucosamine (weakly), raffinose (weakly), D-ribose (weakly),
rhamnose (weakly), D-sorbitol (weakly), starch (weakly), sucrose (weakly), trehalose (weakly), D-turanose (weakly), and D-xylose
Negative results for alpha-arabinosidase, alpha- and beta-galactosidase, alpha- and beta-glucosidase,beta-glucuronidase, N-acetyl-
beta-glucosaminidase, acid production from L-arabinose, cellobiose, D- and L-fucose, and D-fructose.
(c) Costin Stoica