Tobacco necrosis virus
Encyclopedia
Tobacco necrosis virus (TNV) is a plant virus
of the family Tombusviridae
.
It is transmitted by the fungus Olpidium brassicae
.
apparently healthy plants. TNV is the helper virus to several satellite viruses that are dependent on TNV for replication of their genome.
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...
of the family Tombusviridae
Tombusviridae
Tombusviridae is a family of single-stranded positive sense RNA plant viruses. The name is derived from the type species of the Tombusvirus genus, Tomato bushy stunt virus...
.
It is transmitted by the fungus Olpidium brassicae
Olpidium brassicae
Olpidium brassicae is a plant pathogen. In 1983, the Alsike, Alberta area's clover was struck by a fungus epidemic of Olpidium brassicae, previously not seen in Canada.- External links :* *...
.
General Properties of TNV
TNV has wide host range (88 plant species). The virus can be isolated from roots ofapparently healthy plants. TNV is the helper virus to several satellite viruses that are dependent on TNV for replication of their genome.