Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum “Actinobacteria”, Class Actinobacteria, Order Bifidobacteriales, Family Bifidobacteriaceae, Genus Bifidobacterium,
Bifidobacterium apousia Chen, Wang, Zheng 2021.
Gram-positive irregular rods. Non-motile. Asporogenous.
Colonies are white, opaque, 0.5-1.2 mm in diameter on BHI agar supplemented with
defibrinated sheep blood after 3 days of incubation. Grows under both aerophilic
conditions with 5% CO2 and anaerobic conditions. Optimum growth temperature 35 ºC;
range 20-42 ºC. Grows at pH 5.0-9.0 (optimum pH 6.0).
Isolated from hindgut of western honey bee (Apis mellifera), China.
Undetermined.
- Chen J, Wang J, Zheng H, 2021. Characterization of Bifidobacterium apousia sp. nov., Bifidobacterium choladohabitans sp. nov.,
and Bifidobacterium polysaccharolyticum sp. nov., three novel species of the genus Bifidobacterium from honey bee gut. Syst Appl
Microbiol 44, 126247.
Description is based mostly on API 50CHL and API Rapid ID32 A (bioMerieux) results.
Positive results for arginine arylamidase, alpha-arabinosidase, alpha-fucosidase, glycine arylamidase, alpha- and
beta-galactosidase, alpha- and beta-glucosidase, histidine arylamidase, phenylalanine arylamidase, proline arylamidase, serine
arylamidase, tyrosine arylamidase, acid production from L-arabinose, arbutin, cellobiose, esculin, D-fructose, L-fucose (weak),
D-galactose, D-glucose, D-mannose, melibiose, raffinose, D-ribose, salicin, sucrose and D-xylose.
Negative results for alkaline phosphatase, arginine dihydrolase, alanine arylamidase, catalase, beta-glucuronidase, leucine
arylamidase, N-acetyl-beta-glucosaminidase, nitrates reduction, oxidase, urease, acid production from amygdalin, gluconate,
lactose, melezitose, methyl alpha-D-glucopyranoside, methyl alpha-D-mannopyranoside, methyl alpha-D-xylopyranoside, D-sorbitol,
trehalose and turanose.
Variable results for acid production from maltose and gentiobiose.
(c) Costin Stoica