Composite FISH image of activated sludge. Yellow = "Competibacteraceae"; Blue = Ca. Accumulibacter; Green = other cells. Scale bar = 10 microns. - Source:1Aerobic heterotroph
In situ behaviour is consistent with the GAO phenotype. Thought to compete with the PAO for resources with their proliferation at the theoretical expense of EBPR efficiency 2 3. Nitrate, but not nitrite, is utilized as an electron acceptor, indicating an inability for denitrification 2.
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