Effect of temperature on the interaction between Phlebiopsis gigantea and the root-rot forest pathogen Heterobasidion spp.

摘要: Abstract The biocontrol agent Phlebiopsis gigantea is widely applied to stump surfaces during commercial thinning operations in Northern Europe prevent airborne infection of Norway spruce (Picea abies) stumps by the root and butt-rot pathogen Heterobasidion spp. It has been suggested that warmer climatic conditions future may affect interaction between agent, enable annosum sensu stricto, which currently restricted southern areas Sweden, move further northward. To determine whether warm temperatures do effect P. spp., we conducted a series experiments investigate temperature on growth several ability overgrow paired vitro. validate our vitro findings, set up field examine infect parviporum H. s.s., under different regimes. Our study showed did not diminish effectiveness protect against parviporum. rate was higher than parviporum, particularly sapwood. We found little support for hypothetical increase s.s. damage conditions. In studies regardless regime, less resistant overgrowth Under conditions, relatively low capacity abies seems be crucial factor determining outcome interaction. results non-European species, example, araucariae, irregulare others, suggest effective as species or isolates adapted high (20–25 °C), those are able grow rapidly at 25 °C.