| Corynebacterium efficiens |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Mycobacteriales, Family Corynebacteriaceae, Genus Corynebacterium,
Corynebacterium efficiens Fudou, Jojima, Seto, Yamada, Kimura, Nakamatsu, Hiraishi and Yamanaka 2002.
Corynebacterium efficiens Fudou, Jojima, Seto, Yamada, Kimura, Nakamatsu, Hiraishi and Yamanaka 2002.
Gram-positive club-shaped rods, 0.8-1.1 x 1.0-4.5 µm. Mycolic acids are present.
Nonspore-forming. Nonmotile.
Nonspore-forming. Nonmotile.
Colonies on nutrient agar are smooth, entire, circular, dull to slightly glistening and
generally yellow. Require biotin for growth. Optimum growth temperature 30-40 ºC;
can grow at 45 ºC. Grow at pH range 7-10, not at 6.5 pH. Grow in 10% NaCl medium.
No growth in 30% glucose medium. Is a glutamic-acid-producing-species.
Facultatively anaerobic.
generally yellow. Require biotin for growth. Optimum growth temperature 30-40 ºC;
can grow at 45 ºC. Grow at pH range 7-10, not at 6.5 pH. Grow in 10% NaCl medium.
No growth in 30% glucose medium. Is a glutamic-acid-producing-species.
Facultatively anaerobic.
Isolated from soil and vegetables.
Undetermined.
- Fudou R., Jojima Y., Seto A., Yamada K., Kimura E., Nakamatsu T., Hiraishi A. and Yamanaka S., 2002. Corynebacterium efficiens
sp. nov., a glutamic-acid-producing species from soil and vegetables. IJSEM 52, 1127-1131.
Most biochemical reactions were determined by API Coryne test.
Positive results for catalase, nitrate reduction, pyrazinamidase, acid production from: dextrin, fructose, glucose, maltose, mannose
and ribose. Can assimilate acetate, L-lactate, pyruvate, but not D-lactate or succinate.
Negative results for alkaline phosphatase, N-acetyl-beta-glucosaminidase, beta-galactosidase, gelatin hydrolysis, oxidase, acid
production from: galactose, glycogen, lactose, mannitol, salicin, starch and xylose.
Variable results for esculin hydrolysis and urease.
Positive results for catalase, nitrate reduction, pyrazinamidase, acid production from: dextrin, fructose, glucose, maltose, mannose
and ribose. Can assimilate acetate, L-lactate, pyruvate, but not D-lactate or succinate.
Negative results for alkaline phosphatase, N-acetyl-beta-glucosaminidase, beta-galactosidase, gelatin hydrolysis, oxidase, acid
production from: galactose, glycogen, lactose, mannitol, salicin, starch and xylose.
Variable results for esculin hydrolysis and urease.
(c) Costin Stoica
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