Abstract
Tricholoma matsutake is an ectomycorrhizal fungus that forms commercially important mushrooms in coniferous forests. In this study, we explored the ability of T. matsutake to form mycorrhizae with Pinus sylvestris by inoculating emblings produced through somatic embryogenesis (SE) in an aseptic culture system. Two months after inoculation, clones with less phenolic compounds in the tissue culture phase formed mycorrhizae with T. matsutake, while clones containing more phenols did not. Effects of inoculation on embling growth varied among clones; two of the four tested showed a significant increase in biomass and two had a significant increase in root density. In addition, results suggest that clones forming well-developed mycorrhizae absorbed more Al, Fe, Na, P, and Zn after 8 weeks of inoculation. This study illustrates the value of SE materials in experimental work concerning T. matsutake as well as the role played by phenolic compounds in host plant response to infection by mycorrhizal fungi.
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