Cauliflower mosaic virus (CaMV) Biology, Pathology, and Transmission. Cauliflower mosaic virus (CaMV) belongs to the Caulimoviridae family of circular, double-stranded DNA viruses. It predominantly infects members of the Brassicaceae family, including radish, turnip, canola, mustard, cauliflower, broccoli, and cabbage.
What is the genetic material of cauliflower mosaic virus?
Cauliflower mosaic virus (CaMV) is a member of the genus Caulimovirus, one of the six genera in the family Caulimoviridae, which are pararetroviruses that infect plants. Pararetroviruses replicate through reverse transcription just like retroviruses, but the viral particles contain DNA instead of RNA.
Is cauliflower mosaic virus Ssdna?
Cauliflower mosaic virus (CaMV) is a member of the genus Caulimovirus. It is one of the viruses which infect many plants especially the members of Cruciferae. It contains DNA as a genetic material instead of RNA and replicates through the mechanisms of reverse transcription like a retrovirus.
What causes cauliflower mosaic virus?
The primary inoculum source of CaMV is infected brassica crops or cruciferous weeds. The virus is transmitted to the crop by many species of aphids, such as the cabbage aphid, the false cabbage aphid and the green peach aphid. Aphids can acquire and transmit CaMV within one minute of feeding on an infected plant.
Is cauliflower mosaic virus enveloped?
Physical properties: Virions are non-enveloped isometric particles, 53 nm in diameter (Fig. 1). They are constituted by 420 capsid protein subunits organized following T= 7 icosahedral symmetry (Cheng, R.H., Olson, N.H. and Baker, T.S.
How do you prevent cauliflower mosaic virus?
There is no cure for cauliflower mosaic virus. Once a plant is infected, then it is too late. Prevention is the only way to prevent agricultural or gardening losses. Since cauliflower mosaic virus is usually spread by aphids, so any sort of pest control can be beneficial in reducing infection.
What are the symptoms of cauliflower mosaic virus?
The virus can induce a range of systemic symptoms, such as chlorosis (loss of green leaf color), mosaic (patches of light and dark green on leaves), vein clearing (abnormal clear or translucent color of veins), and/or stunting (Figure 2).
Do plant viruses contain DNA?
Although the genetic material for most organisms is double-stranded (ds) DNA, only a minority of plant viruses possess dsDNA genomes. Some of the plant viruses have genomes that are composed of single-stranded (ss) DNA. However, the majority of plant viruses do not use DNA at all.
How is cucumber mosaic virus spread?
Pathogen: Cucumber Mosaic Virus (CMV)
Symptoms can resemble herbicide injury. Spread: This virus is spread by several aphid vectors. Aphids aquire and transmit virus particles by probing and/or feeding on plant tissues.
What does brome mosaic virus do?
Brome mosaic virus (BMV) is a positive-strand RNA virus that infects cereal plants, causing mosaic symptoms and stunting.
How do you get rid of mosaic virus in plants?
There are no cures for viral diseases such as mosaic once a plant is infected.
- Fungicides will NOT treat this viral disease.
- Plant resistant varieties when available or purchase transplants from a reputable source.
- Do NOT save seed from infected crops.
How do you control cassava mosaic?
Control strategies for cassava mosaic disease include sanitation and plant resistance. In this case, sanitation means using cuttings from healthy plants to start with a healthy plot and maintaining that healthy plot by identifying unhealthy plants and immediately removing them.
How is sugarcane mosaic virus treated?
To minimize spread of sugarcane mosaic virus all equipment used should be sanitized. Fungicides and other pesticides have been shown to be ineffective when dealing with viral disease. The best way to deal with a viral disease is through plant host resistance.