Phenotypic and Genotypic Characterization of Escherichia coli Isolated from Untreated Surface Waters

Table 4.: Barcodes as an Indication of Phenotypic Diversity Among Isolates of E. coli Recovered from Different Surface Waters

Barcode^a	Number of Isolates Per Barcode (% of 45 Total)	Isolate and Surface Water that Yielded Observed Barcode (Phenotype)^b
Barcode^a	Number of Isolates Per Barcode (% of 45 Total)	Pond	Stream/creek	Lake	River
5144572-36560	11(24.4)	SHP-1 BKP	SRC CTC-1	DL IGL FLN RPL	DPR ER-1 LWR
5144552-36560	7 (15.6)	UHP EP AP	FAS KC	RL	ER-2
4144572-36570	4 (8.9)		CTC-2 CTC-3	LH LS
5144572-36570	3(6.7)	LP-1 LP-2 WP
5144572-26570	3(6.7)	CTPP FP	CTC-4
5144572-26560	2(4.4)	KFCP	SVNCS
5144552-26570	2(4.4)	TP			ER-3
5044552-34560	2(4.4)	AHP		LM
5044572-34570	2(4.4)	HP CP
5144562-36560	1(2.2)				MRM
5144552-26560	1(2.2)		TPS
5144472-36560	1(2.2)	WPP
5044552-34570	1(2.2)	JP
5044552-24560	1(2.2)			LC
5044542-34760	1(2.2)		CTC-5
4144572-26560	1(2.2)	SHP-2
1044552-30560	1(2.2)		BYC
0044552-30570	1(2.2)				MRI
5144552-36560	E. coli ATCC 25922

^a Per barcode, the first set of numbers (7 digits) represented the ID code generated for an isolate by the API 20E system, and the second set of numbers (5 digits) represented the ID code generated for the same isolate by the Enterotube II system. These were combined to form a 12-digit barcode. All codes identified isolates as E. coli.

^b Use isolate abbreviation and Table 1 to determine the source of the isolate (i.e., name and location of the surface water sampled).