FIG. 1.
CH3I production by resting cells of Rhizobium sp. strain MRCD 19 (●) and A. macleodii IAM 12920 (○) at various concentrations of iodide. Means and standard deviations of triplicate samples are shown, but the error bars are hidden under the symbols. Of the 12 data points depicted, only 1 point showed a standard deviation of more than 10%.