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Bacterial 16S rRNA gene PCR-DGGE of three WL subcultures. Dehalobacter (DHB) and Dehalococcoides (DHC) bands are indicated. The left lane is a reference ladder composed of bands amplified from a mixture of 16S rRNA gene clones derived from the WL subcultures. The image is a negative of a 1% ethidium bromide-stained DGGE gel.
