Fig. 3From: Mercury removal by engineered Escherichia coli cells expressing different rice metallothionein isoformsGrowth curves of control (asterisks), R-MT1 (filled squares), R-MT2 (filled diamonds), R-MT3 (filled triangles), and R-MT4 (filled circles) in the a medium with no mercury and b medium with 30 μM mercury nitrateBack to article page