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Normalized β-galactosidase activities of biofilm-associated and planktonic wild-type V. cholerae strain PW357 cells grown in 10 mM NaCl-YT, 10 mM NaCl-CAA, and 10 mM NaCl supplemented with CAA and carbohydrates (CRB). This strain carries a chromosomal fusion of the vpsL promoter to lacZ.
