Figure 5. FISH staining of the sludge sample analyzed by confocal laser microscopy of FISH cells (a, b and c) and light microscopy (d).
(a) Methanosaeta concilii; (b) Bacteria; (c) Simultaneously hybridized with rhodamine-labeled bacterial-domain probe (EUB338) (red) and FITC-labeled methanogens probe (MSMX860) (green) showing the consortium between methanogens and bacteria; (d) Light microscopy.