Olpidium brassicae

Olpidium brassicae is a plant pathogen, it is a fungal obligate parasite. In 1983, the Alsike, Alberta area's clover (which is a major part of horses' diet) was struck by a fungus epidemic of Olpidium brassicae, previously not seen in Canada.^[1]

Olpidium brassicae
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Family:	Olpidiaceae
Genus:	Olpidium
Species:	O. brassicae
Binomial name
Olpidium brassicae (Woronin) P.A. Dang., Annls Sci. Nat., Bot., sér. 7: 327 (1886)
Synonyms
Asterocystis radicis De Wild., (1893) Chytridium brassicae Woronin, (1878) Olpidiaster radicis (De Wild.) Pascher Pleotrachelus brassicae (Woronin) Sahtiy., (1962)

Vector

O. brassicae is the fungal vector for most, if not all, necroviruses.