Phosphatase activity of benthic marine algae.: An overview

This review provides an account of the phosphatase activities of benthic marine algae and is based on reports for more than a hundred species, including cyanobacteria, red, brown and green algae. Particular emphasis is given to the use of phosphomonoesterase activity as a rapid means of assessing the phosphorus status of the alga and thus indirectly that of the environment. An understanding of the influence of environmental factors and the growth pattern of the particular alga is important in carrying out assays. For instance, the response to light differs markedly between species, especially in short-term assays, when the effect can be obvious or none. Considerations about the methodology for measuring "alkaline phosphatase activity" are discussed, particularly whether to simulate field conditions or to use optimum conditions. Recommendations are suggested concerning the best methodology for routine use, followed by a discussion of the future prospects for the method.