Effect of light quality on growth and sporulation in Verticillium agaricinum

Abstract

Growth and sporulation of Verticillium agaricinum were studied under various wavelengths between 300 and 750 nm. The fungus produced spores under all wavelengths tested as well as in the dark. Of all lights used only actinic blue 320–450 nm (max 370 nm) markedly increased sporulation and retarded growth. The whole process can be considered as lightvariable and not light-dependent. Mycochrome which may be involved in sporulation in certain fungi is not operative in this system.