Ammonia uptake, possible mechanisms

Data from three separate phytoplankton genera, two prymnesiophyte and one dinoflagellate, indicated that this mechanism may be more general than previously realized (88). The L-amino acid oxidase pathway is related to ammonia uptake and is not light dependent. Thus, this mechanism represents a possible light-independent source of H202. The results reported by Palenik and Morel (88) demonstrated that the addition of 1-5 xM amino acids to cultures results in the fonnation of H202. As yet these experiments have not been extended to natural waters, and the relative contribution of... 

---