Kiranjeet Kaur Biotechnologist

  Shots Series: Virus Multiply(Viruses that multiply only in Plants) Article No. 1 Photo/Unsplash  V iruses are primarily classified based on their morphology, which includes the physical and chemical characteristics of their virion components as well as their genetic relationships. List of selected viruses that multiply only in plants  1. Caulimoviridae Open circular dsDNA with single-strand discontinuities, like the hepadnavirus. Molecular weight 4 to 5 × 10⁶ Iso metric 50 nm particles. It contains reverse transcriptase. Aphid vector in nature. It is included in the cauliflower mosaic virus. 2. Germniviridae Circular single-stranded DNA. Molecular weight 0.7 to 0.8 x10⁶ Germniviridae has two incomplete icosahedral particles joined as a pair. This virus is usually found in the nucleus. One to two molecules of DNA per pair of particles. It is persistent in whitefly or leafhopper vectors. 3. Luteoviridae  Single-stranded, positive-sense RNA. Molecular w...