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Images of anaerobic granules taken from a UASB reactor augmented with D. frappieri PCP-1, after 9 weeks of operation. Shown are granule cross sections counterstained with DAPI (blue) (A and C) and hybridized either with S-S-D.frap-86(D. frappieri)-a-A-20 (Cy3) and S-S-D.frap-576(D. frappieri)-a-A-19 (Cy5) (B) or with S-S-D.frap-327(D. frappieri)-a-A-19 (Cy3) and S-S-D.frap-576(D. frappieri)-a-A-19 (D). Overlapping fluorescent signal from both probes was converted to yellow.
