In vitro growth of nine edible ectomycorrhizal fungi under a range of pH conditions

Ectomycorrhizal fungi are considered to play an essential role in the development of forest ecosystems and can protect plant against pathogenic infections. Among other factors, soil pH may affect successful inoculation seedlings nurseries. The effect on growth rate strains nine species edible ectomycorrhizal (ECM) was evaluated vitro. In experiments, Boletus edulis, B. aereus, pinophilus, fragrans, Amanita rubescens, Xerocomus ferrugineus, Lactarius deliciosus, sanguifluus Suillus luteus were grown Petri dishes containing modified Melin Norkrans medium adjusted at seven different levels. Colony area measured 7-day intervals for 8 weeks. Final fungal biomass residual 8th week also measured. optimum levels tolerance ranges tested ECM presented discussed text. results showed that greatest vitro produced by A. rubescens S. high (between 6.5-8.5), X. ferrugineus low (3.5-6.5). Almost all acidified where they after eight incubation