| Galactobacter valiniphilus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Micrococcales, Family Micrococcaceae, Genus Galactobacter, Galactobacter
valiniphilus Hahne et al. 2019.
valiniphilus Hahne et al. 2019.
Gram-positive rods, 0.8–1.1 x 1.4–1.9 µm. No-motile. Rod-coccus life cycle is not
present.
present.
Colonies on TSA incubated at 30 ºC for 48 h 2–3 mm in diameter, beige, shiny and
entire-edged. Growth occurs at 37 ºC but not at 4 ºC, optimum temperature is 30 ºC.
Tolerates maximum 8% NaCl. Growth at pH 6.0-9.3, optimum pH 7.0. Aerobic.
entire-edged. Growth occurs at 37 ºC but not at 4 ºC, optimum temperature is 30 ºC.
Tolerates maximum 8% NaCl. Growth at pH 6.0-9.3, optimum pH 7.0. Aerobic.
Isolated from raw cow’s milk with high bacterial counts from the bulk tank of a dairy farm in Germany.
Undetermined.
- Hahne J, Isele D, Heidler von Heilborn D, Czaja-Hasse L, Huttel B, Lipski A. Galactobacter caseinivorans gen. nov., sp. nov. and
Galactobacter valiniphilus sp. nov., two novel species of the family Micrococcaceae, isolated from high bacterial count raw cow's
milk. Int J Syst Evol Microbiol 2019; 69:2862-2869.
Positive results for catalase, alpha-glucosidase, leucine arylamidase, naphtol-AS-BI-phosphohydrolase, alpha-mannosidase,
trypsin, and valine arylamidase.
Assimilates glycerol, D-glucose, D-mannose, D-cellobiose, maltose and potassium gluconate.
Negative results for acid phosphatase, esterase (C4), esterase lipase (C8), beta-glucosidase, alpha- and beta-galactosidase
(esculin), and oxidase.
No assimilation of D-fructose, methyl-alpha-D-glucopyranoside, mannose, melibiose, and D-ribose.
trypsin, and valine arylamidase.
Assimilates glycerol, D-glucose, D-mannose, D-cellobiose, maltose and potassium gluconate.
Negative results for acid phosphatase, esterase (C4), esterase lipase (C8), beta-glucosidase, alpha- and beta-galactosidase
(esculin), and oxidase.
No assimilation of D-fructose, methyl-alpha-D-glucopyranoside, mannose, melibiose, and D-ribose.
(c) Costin Stoica
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