| Abstract [eng] |
Endophytes are found in all plants, they are plant-associated microorganisms that colonize and live the part of their life cycle within a plant without causing harm or disease to their host. Only one species of Pinus sylvestris pine grows in Lithuania. According to the latest data, even 1.5% of pine trees are damaged by fungal pathogens. 2018 plant material from native and introduced trees of seven species of Pinus (P. sylvestris , P. mugo ‘Frisia’, P. strobur, P. nigra, P. banksiana xp contorta, P. ponderosa var. scopulorum and P. parviflora ‘Glauca’) was selected. During the study, 344 fungal isolates were obtained, which were divided into 75 morphogroups – 73 morphoroups were attributed to the endophytic fungi and 3 morphogroups were classified as pathogens. 54 fungal isolates obtained from Pinus spp. and 24 fungal isolates from Laboratory of Plant Pathology (Nature Research Centre, Vilnius) collection for antagonistic activity against fungal pathogens PATI, PATII and PATIII were investigated. 14 out of 78 isolates had a high antagonistic effect, 10 isolates had a middle effect, and 54 isolates had no effect. The study in vivo showed what all pines that were inoculated with pathogenic fungi and 5 antagonists died five months later. |
