Red clover vein mosaic virus. Coloured transmission electron micrograph (TEM) of virus particles (virions) of the red clover vein mosaic virus (RCVMV). This plant virus is a carlavirus, and has an RNA (ribonucleic acid) genome. It was first identified in 1937 in the red clover plant (Trifolium pratense), a fodder crop grown to feed livestock. Symptoms are yellowing and mosaic patterns on the leaves. The virus is transmitted by several species of aphids. It is found in Eurasia, Canada and the USA. Magnification: x67,000 when printed 10cm high.
Model release not required. Property release not required.