Alphaflexiviridae

Alphaflexiviridae is a family of positive-sense single-stranded RNA viruses. These viruses infect plants and are known for their flexuous, filamentous virions. The family currently includes several genera, such as Allexivirus, Lolavirus, Potexvirus, and unassigned species.

The genome of alphaflexiviruses is a single molecule of RNA that is not segmented. The replication cycle typically occurs in the cytoplasm of host plant cells. Transmission of these viruses often involves mechanical means, such as through contact with infected plant material, or through vectors like aphids or eriophyid mites.

Symptoms in infected plants can vary widely depending on the specific virus and host. Common manifestations include mosaic patterns on leaves, distortion of plant growth, yellowing, and necrosis. Some alphaflexiviruses can cause significant economic damage to agricultural crops.

Research into alphaflexiviridae focuses on understanding their molecular biology, replication strategies, and interactions with their hosts. Developing effective control measures for these plant pathogens is also an important area of study, often involving virus-resistant plant varieties and disease management practices.