The effect of pH on the K(m) values for ammonia was studied in its oxidation by Nitrosomonas cells and cell-free extracts. The K(m) values decreased markedly with increasing pH, suggesting (NH(3)) rather than (NH(4) (+)) as the actual substrate for oxidation.
No takes yet. Share an insight, caveat, or question.
Suzuki et al. (1974) studied this question.