That is fascinating, thank you for writing it up :) There are a lot of mycorrhizal fungi in woodlands here too (well, I suppose they're a major feature of woodlands everywhere), and it's interesting to hear about how they work in different ecosystems—woods here don't ever tend to burn, for instance, and it's very cool that the Swedish pine forest fungi are fire-adapted like the plants. Hooray that conservationists are now recognising their value!