TABLE 2.

Conventional biochemical reactions for seven strains of E. persicinus

Testa	Cumulative % positive at the following times:			Reaction of ATCC 35998Tb
	24 h	48 h	7 days
Indole production		43		−
Methyl red		57		+
Voges-Proskauer		57		−
Citrate, Simmons	0	29	57	+7
H2S production (triple sugar iron)	0	0	0	−
Urea, Christensen	0	0	0	−
Phenylalanine deaminase	0	0	0	−
Lysine, Moeller	0	0	0	−
Arginine, Moeller	0	0	0	−
Ornithine, Moeller	0	0	0	−
Motility	100	100	100	+
Gelatin hydrolysis (22°C)	0	0	0	−
Growth in KCN	0	0	0	−
Malonate utilization	14	100	100	+2
d-Glucose
Acid production	100	100	100	+
Gas production	0	0	0	−
Acid production from:
d-Adonitol	0	0	0	−
l-Arabinose	57	86	100	+2
d-Arabitol	0	0	0	−
Cellobiose	100	100	100	+
Dulcitol	0	0	0	−
Erythritol	0	0	0	−
d-Galactose	29	43	71	−
Glycerol	0	0	0	−
i(myo)-Inositol	0	14	29	+7
Lactose	14	14	14	−
Maltose	0	0	0	−
d-Mannitol	100	100	100	+
d-Mannose	100	100	100	+
Melibiose	43	43	43	−
α-Methyl-d-glucoside	0	0	0	−
Raffinose	71	71	71	+
l-Rhamnose	0	43	71	+3
Salicin	100	100	100	+
d-Sorbitol	100	100	100	+
Sucrose	100	100	100	+
Trehalose	86	100	100	+
d-Xylose	0	0	0	−
Esculin hydrolysis	14	71	100	+7
Mucate, acid production	0	0	0	−
Tartrate, Jordan	0	0	100	+7
Acetate utilization	0	0	14	−
Lipase (corn oil)	0	0	0	−
DNase (25°C)	0	0	0	−
NO3−→NO2−	100			+
Oxidase	0			−
ONPGc	100	100	100	+
Hydrogen sulfide (PIAd)	0	0	0	−
Tyrosine clearing	0	0	0	−

^aIncubation was at 35°C unless otherwise specified. 

^bSymbols: −, negative; +, positive. The superscript number indicate the days on which the reaction became positive. 

^cONPG, o-nitrophenyl-β-d-galactopyranoside. 

^dPIA, peptone iron agar.