Rod-shaped particles, 22–28 × 119 nm in size, and isometric particles, 30 nm in diameter, were electron microscopically detected in fruit bodies of Armillariella mellea, Laccaria laccata, and Inocybe dulcamara bearing hymeniform proliferations. The particles resemble virions. If they are indeed virions, it is not yet clear whether one or two viruses are involved. In the case of virosis, a name for a complex of viruses causing the proliferation of agaric mushrooms might be used. The disease was transmitted to Laccaria amethystina and Pholiota mutabilis by watering with a suspension of homogenized fruit bodies of Armillariella mellea. The proliferation is therefore presumed to be a virus disease.
Blattný C., Králík O., Veselský J., Kasala B., Herzová H. (1973): Particles resembling virions accompanying the proliferation of Agaric mushrooms. – Česká Mykologie 27(1): 1–5.
