Polymyxa graminis

Polymyxa graminis is a species of plasmodiophorid cercozoans. It is an obligate parasite of plant roots and, though itself non-pathogenic, is responsible for the transmission of several very important plant viruses, including barley yellow mosaic virus (BaYMV) and soil-borne wheat mosaic virus (SBWMV).

Polymyxa graminis
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Rhizaria
Phylum:	Endomyxa
Class:	Phytomyxea
Order:	Plasmodiophorida
Family:	Plasmodiophoridae
Genus:	Polymyxa
Species:	P. graminis
Binomial name
Polymyxa graminis Ledingham