Sida golden mosaic begomovirus

Begomovirus sidaureicostaricaense is a plant-pathogenic virus belonging to the genus Begomovirus within the Geminiviridae family. The virus is characterized by a circular single-stranded DNA genome, which integrates into the host plant's system upon infection. It is a significant pathogen that affects various plants, primarily focusing on species within the Malvaceae family.

The host range is centered on the genus Sida, acting as a natural reservoir for the virus in many regions. Agricultural concerns arise when the virus spills over into economically important crops, causing physiological disturbances that hinder the plant's ability to undergo standard development and yield production.

The diagnostic symptoms of this disease include interveinal chlorosis, which manifests as distinct yellow mosaic patterns on leaves. Advanced stages of infection often involve leaf curling, stunted plant architecture, and a marked reduction in leaf area. These factors directly lead to impaired photosynthesis, limiting the plant's capacity to produce biomass.

The transmission mechanism of Begomovirus sidaureicostaricaense is exclusively through the whitefly Bemisia tabaci. This insect vector acquires the virus while feeding on phloem sap from an infected plant and subsequently inoculates healthy plants during the feeding process. The severity of the epidemic is directly linked to the population density of the whitefly in the surrounding area.

Management strategies focus on breaking the infection cycle through a combination of cultural and chemical controls:

• Systematic elimination of weed hosts, particularly those belonging to the genus Sida.
• Integrated pest management to reduce the population levels of the whitefly vector.
• Implementation of quarantine measures and the use of certified healthy plant materials.
• Monitoring fields to identify and remove infected plants to limit secondary spread.