Corynebacterium frankenforstense
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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Corynebacterinae, Family
Corynebacteriaceae, Genus Corynebacterium, Corynebacterium frankenforstense Wiertz, Schulz, Müller, Kämpfer and Lipski 2013.
Gram-positive pleomorphic short rods, 1.0-1.5 x 0.6-0.9 µm. Non-spore-forming.
Non-motile. Tuberculostearic acid is absent. Mycolic acids are present.
Colonies on TSA after 3 days of incubation under aerobic conditions at 30 ºC are
about 2 mm in diameter, white, entire-edged and shiny. On Columbia blood agar
colonies are about 2 mm in diameter, white, entire edged and shiny. Non-haemolytic.
Can grow at 42 ºC, but not at 20 ºC.
Isolated from a bulk milk tank of a dairy farm in Germany.
Undetermined.
- Wiertz R., Schulz S.C., Muller U., Kampfer P. and Lipski A., 2013. Corynebacterium frankenforstense sp. nov. and
Corynebacterium lactis sp. nov., isolated from raw cow milk. IJSEM 63, 4495-4501.
Most biochemical reactions were determined by API Coryne, API 50CH, and API ZYM.
Fermentative metabolism.
Positive results for catalase, esterase lipase, beta-glucuronidase, pyrazinamidase,
acid production from: L -arabinose, D-arabitol, fructose, glucose at 42 ºC and 37 ºC, mannose, ribose, sucrose & trehalose.
Negative results for acid phosphatase, alkaline phosphatase, beta-galactosidase, gelatin hydrolysis, alpha- and beta-glucosidase,
alpha- and beta-galactosidase, N-acetyl-beta-glucosaminidase, lipase (C14), oxidase, pyrrolidonyl arylamidase, starch hydrolysis,
trypsin, urease, acid production from: adonitol, amygdalin, D -arabinose, cellobiose, dulcitol, erythritol, fucose, galactose, gentiobiose,
gluconate, 2 or 5-ketogluconate, glycogen, inositol, inulin, lactose, lyxose, maltose, mannitol, melezitose, melibiose, raffinose,
rhamnose, sorbitol, sorbose, starch, tagatose, turanose, xylitol & xylose.
Variable results for nitrates reduction.
(c) Costin Stoica