| Polymyxa graminis | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Phylum: | Endomyxa |
| Class: | Phytomyxea |
| Order: | Plasmodiophorida |
| Family: | Plasmodiophoridae |
| Genus: | Polymyxa |
| Species: | P. graminis
|
| Binomial name | |
| Polymyxa graminis Ledingham
| |
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).