Charges on fungal spores

A survey is made of the use of microelectrophoresis to study surface charges on fungal spores in aqueous suspension. The method involves observation of individual spores under the microscope and measurement of rates of migration in a known potential gradient. Charge characteristics can be modified by specific chemical and enzymic treatments and provide a means of identifying surface ionogenic groups. The technique has also been used to demonstrate the presence of surface lipid. The surface components of a wide range of fungal spores are discussed. Studies of reactions of cationic fungicides at the surface of spores and stabilised protoplasts are also reviewed.