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Effect of dissolved As(V) and As(III) on the (a) growth and (b, c, and d) morphology of strain IITK SM2. Bacteria were inoculated in 10 mM glucose-containing minimum salt media (MSM) and supplemented with either 10 mM As(V), or 10 mM As(III), or no As. Error bars correspond to standard deviations of the means from triplicate experiments. No background As(V) and As(III) was detected in MSM.
