Abstract
Most of the plant pathogenic fungi produce a dark phenolic polymer called melanin. The high performance liquid chromatography (HPLC) analysis of the mycelial extract of Alternaria helianthi revealed an accumulation of scytalone and a shunt metabolite 2-hydroxyjuglone which confirms the production of dihydroxynapthalene type of melanin. The growth and melanin of A. helianthi increased when grown in host extract broth at 6.5 pH and a temperature beyond 30°C had an inhibitory effect on the pathogen. The production and type of melanin produced in Alternaria helianthi is reported for the first time.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have