Environ. Sci. Technol. 2000, 34, 616-622
Regulation of Zn Accumulation by a Freshwater Gram-Positive Bacterium (Rhodococcus opacus) N. MIRIMANOFF AND K. J. WILKINSON* CABE (Analytical and Biophysical Environmental Chemistry), University of Geneva, Sciences II, 30 Quai Ernest Ansermet, Geneva 4, CH-1211, Switzerland
Zn uptake by an aquatic Gram-positive bacterium was not predicted by the activity of Zn2+ in the bulk solution. The failure of the simple Free Ion Activity Model did not appear to be due to a mass transfer limitation of the uptake process. Instead, Rhodococcus opacus is shown to produce a small (
