Abstract
Resistance to Zn2+ in Vibrio parahaemolyticus was induced when the bacteria were pretreated with lower concentrations of Zn2+. However, only a little resistance to Cd2+ and Co2+ was induced with Zn2+ and no resistance to Zn2+, Cd2+, or Co2+ was induced with Cd2+ or Co2+. The change of composition of outer membrane proteins from the bacteria grown in 3% NaCl-LB broth containing Zn2+ was more remarkable than that from the cells grown in the medium containing Cd2+ or Co2+. The amount of outer membrane protein with an apparent molecular weight of 48, 000 was increased with increasing Zn2+ concentrations in the medium.
