TABLE 2.

Effects of pH and osmolarity on chromosomal fimB-lacZ and fimE-lacZ fusions in strain AAEC189

Strain	Fusion	pH	Added NaCl concn (mM)	β-Galactosidase activity (Miller units)
AAEC189-2fimE	fimE-lacZ	7.0	0	72.6 ± 7.4
AAEC189-2fimE	fimE-lacZ	7.0	400	73.4 ± 9.5
AAEC189-2fimE	fimE-lacZ	5.5	0	56.6 ± 14.3
AAEC189-2fimE	fimE-lacZ	5.5	400	62.2 ± 7.0
AAEC189-4fimB	fimB-lacZ	7.0	0	90.6 ± 14.7
AAEC189-4fimB	fimB-lacZ	7.0	400	65.6 ± 11.1
AAEC189-4fimB	fimB-lacZ	5.5	0	58.0 ± 6.7
AAEC189-4fimB	fimB-lacZ	5.5	400	49.6 ± 5.7