Sugar- and nitrogen-dependent regulation of an Amanita muscaria phenylalanine ammonium lyase gene.

Article date: 1999/3/12

PubMed ID: 2521617

Journal name: Journal of bacteriology (ISSN: 0021-9193)


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.

Author List: Nehls U, Ecke M, Hampp R

Publication Types: Journal Article; Research Support, Non-U.S. Gov't

Substances mentioned in the article: Carbohydrates; DNA, Complementary; DNA, Fungal; Phenylalanine Ammonia-Lyase; Nitrogen;

Mesh terms: Amanita/enzymology; Carbohydrate Metabolism; Carbohydrates/pharmacology; DNA, Complementary/genetics; DNA, Fungal/genetics; Gene Expression Regulation, Fungal/drug effects; Genes, Fungal; Nitrogen/metabolism; Phenylalanine Ammonia-Lyase/genetics; Plant Roots/microbiology; Symbiosis;

Citations: - 6210688

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