FIG. 2.

Dehalobacter and Desulfovibrio growth during 1,1,1-TCA and 1,1-DCA degradation. Circles represent Dehalobacter; squares represent Desulfovibrio. Open symbols represent controls (amended with a donor only); black symbols represent bottles amended with 1,1,1-TCA; gray symbols represent bottles amended with 1,1-DCA. 16S rRNA gene copy values are mean values for three bottles and are expressed as numbers of copies per ml of culture. Numbers on the right represent net increases (+) or decreases (−) in 16S rRNA gene copies/ml from the start to the end of the experiment for each target organism in each treatment bottle. Error bars show the standard deviations for three bottles.