How viruses are characterized with reference to plants?

Plant viruses can be pathogenic to higher plants. Most plant viruses are rod-shaped, with protein discs forming a tube surrounding the viral genome; isometric particles are another common structure. They rarely have an envelope.

What is an example of plant virus?

Tomato spotted wilt virus
Cauliflower mosaic virusBrome mosaic virus
Plant virus/Representative species

The Top 10 list includes, in rank order, (1) Tobacco mosaic virus, (2) Tomato spotted wilt virus, (3) Tomato yellow leaf curl virus, (4) Cucumber mosaic virus, (5) Potato virus Y, (6) Cauliflower mosaic virus, (7) African cassava mosaic virus, (8) Plum pox virus, (9) Brome mosaic virus and (10) Potato virus X, with …

What plant diseases are caused by virus?

• TOBACCO MOSAIC VIRUS (TMV)
• TOMATO SPOTTED WILT VIRUS (TSWV)
• TOMATO YELLOW LEAF CURL VIRUS (TYLCV)
• CUCUMBER MOSAIC VIRUS (CMV)
• POTATO VIRUS Y (PVY)
• CAULIFLOWER MOSAIC VIRUS (CaMV)
• AFRICAN CASSAVA MOSAIC VIRUS (ACMV)
• PLUM POX VIRUS (PPV)

Which is the largest plant virus?

Potyviruses are the largest group of plant infecting RNA viruses that cause significant losses in a wide range of crops across the globe.

How big is a double stranded DNA virus?

Double stranded DNA viruses only infect lower species of plants, such as algae. These viruses are huge dsDNA viruses with genomes ranging from 160 to 560 kb with up to 600 protein-encoding genes, making them distinctly different from viruses infecting higher plants.

Are there any single stranded DNA viruses in plants?

Single-stranded DNA is usually expanded to double-stranded in infected cells. DNA viruses are relatively rare in plants. Seventeen percent of plant viruses are ssDNA, while dsDNA viruses infect only lower plants, such as eukaryotic algae.

How big is the genome of a plant virus?

Double-stranded DNA viruses of plants are rare, and only infect lower plants, such as algae. These viruses (family Phycodnaviridae) are huge dsDNA viruses with genomes ranging from 160 to 560 kb with up to 600 protein-encoding genes, making them distinctly different from viruses infecting higher plants.

What kind of DNA does the cannabis plant have?

Cannabis, like most plants and animals, is also subject to viral infection. Over a million years the Cannabis plant evolved, and the constant viral infections could have weaved some of its genetic material into the plant. This DNA seems to code for these particular enzymes, THCAS and CBDAS.