RT info:eu-repo/semantics/article T1 Effects of Lactarius deliciosus and Rhizopogon roseolus ectomycorrhyzal fungi on seeds and seedlings of Scots and stone pines inoculated with Fusarium oxysporum and Fusarium verticillioides A1 Olaizola Suárez, Jaime A1 Villada, David A1 Oria de Rueda Salgueiro, Juan Andrés A1 Alves Santos, Fernando Manuel A1 Díez Casero, Julio Javier K1 Pinos K1 Plantas - Enfermedades y plagas K1 Arboles - Enfermedades y plagas K1 Bosques y Silvicultura - Europa K1 3106 Ciencia Forestal K1 3108 Fitopatología AB Two isolates of the edible ectomycorrhizal fungi (ECM), Lactarius deliciosus and Rhizopogon roseolus, were tested against Fusarium oxysporum and F. verticillioides, causal agents of damping-off on seeds and seedlings of Scots pine (Pinus sylvestris) and stone pine (Pinus pinea). The effects of ECM on Fusarium spp. in the rhizosphere of Scots and stone pines were evaluated by: (1) co-inoculating ECM and Fusarium when seeding (seed test) and (2) co-inoculating eight-week-old seedlings (seedling test). The seed tests showed significant reduction of Scots pine seed germination when treated with F. verticillioides, but this effect was absent when co-inoculated with R. roseolus. Higher germination rates were observed in stone pine when F. oxysporum was co-inoculated with L. deliciosus than the pathogen inoculation alone. In the seedling test, Scots and stone pines were not apparently affected by Fusariumspp. No obvious changes in plant growth-related variables were observed in either assay. Root colonization of Scots and stone pine seedlings by R. roseolus was 15.5% and 12% for the seed assay, as well as 21.6% and 11% for the seedling assay. Lactarius deliciosus mycorrhizal roots were found onlyin Scots pine seedlings (10%). Rhizopogon roseolus and L. deliciosus are two promising fungi for pine seedling protection against Fusarium damping-off at nurseries. PB Canadian Institute of Forestry SN 0015-7546 YR 2018 FD 2018 LK https://uvadoc.uva.es/handle/10324/49946 UL https://uvadoc.uva.es/handle/10324/49946 LA eng NO The Forestry Chronicle, 2018, vol. 94, n. 2, p. 126-134 NO Producción Científica DS UVaDOC RD 24-nov-2024