Benyviruses

Benyviruses are a genus of plant-infecting viruses in the family Virgaviridae. These viruses are known for their rod-shaped virions and are transmitted by soil-borne fungi, specifically species of Olpidium. The genome of a benyvirus is typically composed of three positive-sense single-stranded RNA molecules. The first RNA molecule encodes the viral coat protein and a movement protein, which facilitates the spread of the virus within the plant. The second RNA molecule codes for the viral replicase, essential for viral replication. The third RNA molecule encodes two smaller proteins, one of which is involved in virion assembly. Benyviruses cause a variety of diseases in plants, often leading to yellowing, stunting, and necrosis. Examples of plants susceptible to benyvirus infection include various crops and ornamental species. Diagnosis can be challenging and often relies on a combination of symptom observation, serological assays, and molecular detection methods. There are no specific antiviral treatments for benyvirus infections, and management strategies primarily focus on preventing transmission through practices like crop rotation and soil sanitation.