Sugar- and Nitrogen-Dependent Regulation of an Amanita muscaria Phenylalanine Ammonium Lyase Gene

Post by **Amanita Research** » Thu Oct 03, 2019 2:34 pm

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC93597/

Abstract: The cDNA of a key enzyme of secondary metabolism, phenylalanine ammonium lyase, was identified for an ectomycorrhizal fungus by differential screening of a mycorrhizal library. The gene was highly expressed in hyphae grown at low external monosaccharide concentrations, but its expression was 30-fold reduced at elevated concentrations. Gene repression was regulated by hexokinase.