TABLE 2.

Characteristics useful for the differentiation of members of the B. cepacia complex, B. gladioli, Pandoraea spp., R. pickettii, A. xylosoxidans, and S. maltophilia^a

	Result forb:
	B. cepacia							B. gladioli	Pandoraea species	R. pickettii	A. xylosoxidans	S. maltophilia
	Genomovar I	Genomovar IIc	Genomovar III	Genomovar IVd	Genomovar Ve	Genomovar VI	Genomovar VIIf
Oxidase	+	+	+	+	+	+	+	−	v	+	+	−
Oxidation of:
Sucrose	v	−	v	−	+	−	+	−	−	−	−	v
Adonitol	v	+	v	v	−	+	+	+	−	−	−	−
Lactose	v	+	v	+	+	+	+	−	−	−	−	+
Lysine decarboxylase	+	v	+	+	+	−	+	−	−	−	−	+
Ornithine decarboxylase	v	−	v	+	−	−	−	−	−	−	−	−
Gelatine liquefaction	v	−	v	+	−	−	+	v	−	−	−	+
Aesculine hydrolysis	v	−	v	−	−	−	v	v	−	v	−	+
β-Galactosidase activity	+	+	+	−	+	+	+	+	−	−	−	+
Growth at 42°C	v	+	v	−	+	+	v	−	v	v	NK	v
β-Hemolysis	−	−	−	−	v	−	v	−	−	−	NK	NK

^aData for members of the B. cepacia complex, B. gladioli, and R. pickettii from reference 42; data for Pandoraea spp. from reference 20; data for A. xylosoxidans from references 52 and 111; and data for S. maltophilia from references 27, 80, and 111. 

^b+, 90% or more of the strains investigated yielded a positive reaction; −, 10% or fewer of the strains investigated yielded a positive reaction; v, between 10 and 90% of the strains investigated yielded a positive reaction; NK, not known. The numbers of strains investigated were 23 (B. cepacia genomovar I), 109 (B. multivorans), 139 (B. cepacia genomovar III), 27 (B. stabilis), 36 (B. vietnamiensis), 9 (B. cepacia genomovar VI), 18 (B. ambifaria), 27 (B. gladioli), 32 (Pandoraea spp.), and 12 (R. pickettii). The numbers of A. xylosoxidans and S. maltophilia strains investigated are not known. 

^cB. multivorans. 

^dB. stabilis. 

^eB. vietnamiensis. 

^fB. ambifaria.