Inhibitor of mycelial growth against Lepista sordida from turfgrass Agrostis stolonifera

Abstract

Rings or arcs of fungus-regulated plant growth often occur on lawns and golf courses, and are commonly called “fairy rings”. The rings are produced by the interaction between grasses and fungi. We investigated the possibility of specific mycelial growth regulator(s) produced by a grass, Agrostis stolonifera (bentgrass). We succeeded in the isolation and purification of an active compound from the bentgrass. The active compound was identified as 2-acetyl-3, 5-dimethoxyphenol by interpretation of NMR and mass data. This compound inhibited mycelial growth of a fairy ring-forming fungus, Lepista sordida, and two basidiomycetes, Flammulina velutipes and Coprinopsis cinerea.