Table 1

Phenotypic characteristicsathat can be useful to differentiate the speciesC. shigense,C. piscicola,C.chaponenseandF. psychrophilum
Characteristic C. shigense C. piscicola C.chaponense F. psychrophilumb
Growth at/with:
 37 C - - + -
 3.0 % NaCl w + - -
Flexirubin-type pigment + + - +
Hydrolysis of:
 Casein + - - +
 L-tyrosine + - - V
 Gelatin + + - +
 Starch + + - -
 DNA - w - -
Enzyme activity:
 α-glucosidase - + + V
 β -glucosidase - + + V
 β-galactosidase - - - V

a Data for C. shigense are taken from this study, for C. piscicola from reference Ilardi et al. [8], for C. chaponense from reference Kämpfer et al. [11] and for F. psychrophilum from references Bernardet et al. [23], Cipriano and Holt [18] and Hesami et al. [24]. bF. psychrophilum differs also from C. shigense by its inability to utilize glucose as sole carbon source, to hydrolyze aesculin and to produce a brown diffusible pigment on tyrosine agar. +, Positive reaction; -, negative reaction; V, variable reaction; w, weak reaction.

Zamora et al.

Zamora et al. BMC Veterinary Research 2012 8:77   doi:10.1186/1746-6148-8-77

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