... probe (a mixture of CCGTCATCTACWCAGGGTATTAAC, CCCTCTGCCAAACTCCAG, and GTTAGCTACGGCACTAAAAGG) (Crocetti et al., 2000) targeting at Candidatus ‘Accumulibacter phosphatis’, one of the PAOs; GB ... on acetate uptake by PAOs and GAOs The profiles of pH, acetate uptake, and phosphate release observed in the cold experiments are shown in Figs. 2, 3 and 4. In all cases, acetate uptake and ... of radio-labeled acetate by Candidatus ‘Accumulibacter phosphatis’ and Candidatus ‘Competibacter phosphatis’ was examined by MAR-FISH, and the results are shown in Figs. 5 and 6. Lower initial...