Helicobasidium purpureum
（重定向自Rhizoctonia crocorum）
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Helicobasidium purpureum is a fungal plant pathogen which causes violet root rot in a number of susceptible plant hosts. It is synonymous with Helicobasidium brebissonii (Desm.) Donk. It is the teleomorph of Tuberculina persicina which is its mycoparasitic anamorph.