Unlike animals, plants do not possess an adaptive immune system with antibodies or T cells to fight viral infections. Instead ...

Host plant proteins act in potato virus A (PVA) infection either for or against the progression of the infection. Genes encoding pro-viral host factors are called susceptibility genes. The ...

The active ingredients have a broad spectrum effect; a series of RNA molecules support the plant's immune system in combating the virus. In laboratory experiments, 80 to 100 per cent of the ...

Upregulation of a synergistic defense mechanism involving AGO18-mediated RNA interference and reactive oxygen species (ROS), which strengthened the plant's ability to fend off the virus.

About 90 species of aphids transmit the virus, which affects more than 1,200 plant species. These include numerous agricultural crops such as squash, cucumbers, cereals and medicinal and aromatic ...

Nearly everyone has been infected at some point with the human roseoloviruses HHV-6 and HHV-7. The resulting illness is usually a childhood infection that is characterized by a few days of high fever ...

Select a category above to classify viruses according to shared characteristics. Select any virus below to explore its structure and biology. The envelope contains viral proteins embedded in it.