Organic acids and water-soluble phenolics produced by Paxillus sp. 60/92 together show antifungal activity against Pythium vexans under acidic culture conditions.

Ectomycorrhizal fungi can produce antifungal compounds in vitro as well as in symbiosis with the host plant that can reduce root diseases. The objective of this study was to isolate antifungal compounds from culture filtrate of Paxillus sp. 60/92, which can form mycorrhizas with Picea glehnii seedlings.