Polymyxa graminis
Encyclopedia
Polymyxa graminis is a species of plasmodiophorid
protist
. It is an obligate parasite of plant
root
s and though itself in non-pathogenic, it is responsible for the transmission
of several very important plant virus
es, including barley yellow mosaic virus (BaYMV) and soil-borne wheat mosaic virus
(SBWMV).
Phytomyxea
The Phytomyxea are a group of protists that are parasites of plants. A more common name for them is the plasmodiophorids, but this does not always include Phagomyxa. They typically develop within plant cells, causing the infected tissue to grow into a gall or scab...
protist
Protist
Protists are a diverse group of eukaryotic microorganisms. Historically, protists were treated as the kingdom Protista, which includes mostly unicellular organisms that do not fit into the other kingdoms, but this group is contested in modern taxonomy...
. It is an obligate parasite of plant
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...
root
Root
In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. This is not always the case, however, since a root can also be aerial or aerating . Furthermore, a stem normally occurring below ground is not exceptional either...
s and though itself in non-pathogenic, it is responsible for the transmission
Transmission (medicine)
In medicine and biology, transmission is the passing of a communicable disease from an infected host individual or group to a conspecific individual or group, regardless of whether the other individual was previously infected...
of several very important plant virus
Plant virus
Plant viruses are viruses that affect plants. Like all other viruses, plant viruses are obligate intracellular parasites that do not have the molecular machinery to replicate without a host. Plant viruses are pathogenic to higher plants...
es, including barley yellow mosaic virus (BaYMV) and soil-borne wheat mosaic virus
Wheat soil-borne mosaic virus
Soil-borne wheat mosaic virus is a plant pathogenic virus vectored by plasmodiophorid Polymyxa graminis.-External links:**...
(SBWMV).