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. Author manuscript; available in PMC: 2020 Jul 29.
Published in final edited form as: World J Clin Infect Dis. 2020 May 15;10(1):14–23. doi: 10.5495/wjcid.v10.i1.14

Table 3.

Effect of osmolarity on fliC::lacZ gene transcription in E. coli grown in buffered pH 5.5 and 7.0 LB media with different osmolarities

E. coli strain NaCl (mM) β-gal Activitya
pH 5.5 pH 7.0
MC4100/pNK2–29 0 308 ± 104b 1,132 ± 130
MC4100/pNK2–29 100 338 ± 128 806 ± 41
MC4100/pNK2–29 200 251 ± 68.5 689 ± 173
MC4100/pNK2–29 400 62 ± 22.0 454 ± 71
NU149 LacZ1/pNK2–29 0 442 ± 72 1,353 ± 98
NU149 LacZ1/pNK2–29 100 418 ± 61 976 ± 52
NU149 LacZ1/pNK2–29 200 293 ± 43 811 ± 75
NU149 LacZ1/pNK2–29 400 147 ± 39 489 ± 61
a

β-galactosidase activity measured as Miller units.

b

Data represents the mean ± standard deviation from three separate runs.