Cryptococcus spp. isolation from excreta of pigeons (Columba livia) in and around Monterrey, Mexico

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Table 3 Isolate’s characteristics

Isolate identification	Assays							CDBT	CGB	CMa	Microbiologic identification
Isolate identification	P	U	I	L	°C	N	C	CDBT	CGB	CMa	Microbiologic identification
Cs1	+	+	+	-	+	-	+	-	-	White	C. neoformans var. grubii
Cs2	+	+	+	-	+	-	+	-	-	White	C. neoformans var. grubii
Cs3	-	+	+	+	-	+	+	-	-	Pink lavender	C. albidus
Cs4	-	+	+	+	-	+	+	-	-	Pink lavender	C. albidus
Cs5	-	+	+	-	-	+	+	-	-	Pink lavender	C. albidus
Cs6	+	+	+	-	+	-	+	-	-	White	C. neoformans var. grubii
Cs7	-	+	+	-	-	+	+	-	-	Pink lavender	C. albidus
Cs8	+	+	+	-	+	-	+	-	-	White	C. neoformans var. grubii
Cs9	+	+	+	-	+	-	+	-	-	White	C. neoformans var. grubii
Cs10	-	+	+	+	-	+	+	-	-	Pink lavender	C. albidus

Cryptococcus species identification using biochemical assays: phenoloxidase activity (P), urease activity (U), inositol (I), lactose (L), Potassium nitrate (N) and Creatinine assimilation (C), growth at 37°C (°C), Color (+) or no color changes (-) observed Creatinine dextrose bromothymol blue thymine (CDBT) agar and Canavanine-Glycine-Bromothymol Blue (CGB) agar and colonial morphotype in CHROMagar plates (CMa). Cryptococcus internal identification for each isolate (Cs1-Cs10).