Table 14.1 Open in new tab Phenotypic... | Oxford Academic

Table 14.1

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Phenotypic differentiation of Listeria species

Phenotypic test	Listeria species
Phenotypic test	*L.monocytogenes*	*L.ivanovii*	*L.innocua*	*L.welshimeri*	*L.marthii*	*L.rocourtiae*	*L.seeligeri*	*L.grayi*
β-haemolysis on blood agar	+	+	-	-	-	-	(+)	-
Lipase production	+	+	-	-	-	-	+	-
Acid production from:
D-mannitol	-	-	-	-	-	+	-	+
L-rhamnose	+	-	+	v	-	+	-	V
D-xylose	-	+	-	+	-	+	+	-
CAMP (enhancement of haemolysis) against:
Staphylococcus aureus	+	-	-	-	NK	-	(+)	-
Rhodococcus equi	-	+	-	-	NK	-	-	-
Amino acid peptidase	-	+	+	+	+	+	+	+

Phenotypic test	Listeria species
Phenotypic test	*L.monocytogenes*	*L.ivanovii*	*L.innocua*	*L.welshimeri*	*L.marthii*	*L.rocourtiae*	*L.seeligeri*	*L.grayi*
β-haemolysis on blood agar	+	+	-	-	-	-	(+)	-
Lipase production	+	+	-	-	-	-	+	-
Acid production from:
D-mannitol	-	-	-	-	-	+	-	+
L-rhamnose	+	-	+	v	-	+	-	V
D-xylose	-	+	-	+	-	+	+	-
CAMP (enhancement of haemolysis) against:
Staphylococcus aureus	+	-	-	-	NK	-	(+)	-
Rhodococcus equi	-	+	-	-	NK	-	-	-
Amino acid peptidase	-	+	+	+	+	+	+	+

+, positive reaction; -, negative reaction; (+), weak reaction; v, variable reaction; NK, not known.