The alkaline phosphatase activity (APA) of Selenastrum capricomutum Printz incubated in situ in four streams in New York State was inversely related to total insolation. APA was not correlated with stream molybdate reactive phosphorus over the range of concentrations encountered. Selenastrum showed no diel cycle of APA. The phosphorus fraction made available by the activity of alkaline phosphatases, enzyme hydrolyzable phosphorus (measured for the first time in streams), increased the phosphorus supply to organisms with high APA.
No takes yet. Share an insight, caveat, or question.
Richard Klotz (1985) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: