Fig. 5From: Understanding gold toxicity in aerobically-grown Escherichia coliIntracellular reduced thiol levels in HAuCl4 treated-E. coli. The assays were carried out under aerobic (a) and anaerobic (b) conditions in the presence of different concentrations of Au3+ or tellurite (positive control). Data represent the average of 3 independent assays ± SDBack to article page