Methane production and cadmium accumulation in M. acetivorans cultured on acetate or methanol.

Data shown were obtained from cell cultures at the end of the growth curve. Values are the mean ± SD of at least 4 cultures from different batches.a: Pvs acetate-grown cells at any other concentration of cadmium;b: Pvs methanol-grown cells at any other concentration of cadmium;cacetate-grown cells vs 25, 50 and 100 µM cadmium, using the Student's t-test.