I'm curious about how these relationships evolved. Fungi are prone to symbiosis with species other families, like algae. A virus that neutralizes the deleterious effects of a fungus for some third party could suggest an evolved three-part symbiosis, with benefit accruing to all three, only if all three are present. Is it possible that it was previously a two-part, fungus–plant relationship, but that the fungus outsourced one of its functions to a virus that was common in its originating niche?
Merveilles is a community project aimed at the establishment of new ways of speaking, seeing and organizing information — A culture that seeks augmentation through the arts of engineering and design. A warm welcome to any like-minded people who feel these ideals resonate with them.