In vitro Ectomycorrhiza Formation on Two Larch Species of Seedlings with Six Different Fungal Species

The ability of ectomycorrhizal formation in two species of larch seedling (Larix kaempferi Sarg. and its FI larch; Larix kaempferi X Larix gmelinii Rupr.) with six species of ectomycorrhizal fungi (Russula emetica, Tricholoma saponaceum, Lactarius hatsudake, Suillus grevillei, Suillus laricinus and Cenococcum geophilum) was tested using an in vitro synthesis technique. All six fungal isolates formed ectomycorrhizae association on roots of Japanese larch and F1 hybrid larch after ten weeks inoculation. The degrees of infection were depending on the ability of fungal growth on the artificial vermiculite-peat substrate and the fungal affmity to the hosts. The results suggest that the two larch species tested have the ability to form ectomycorrhizae with diverse ectomycorrhizal fungal species under this artificial culture condition.