There is no evidence that the virus is seed-borne in any vegetable hosts, but it has been reported to be seed-borne in other hosts.
How is cucumber mosaic transmitted?
Cucumber mosaic virus is transmitted by the mechanical inoculation of plant sap and aphids are the most important means of natural transmission (Edwardson and Christie, 1986). More than 80 aphid species have been described as CMV vectors and transmit the virus in a non-persistent, stylet-borne manner.
Where does cucumber mosaic virus come from?
More commonly, CMV is spread by aphids [see the University of Wisconsin Garden Facts XHT1043 (“Aphids”) for details on these insect pests] which can pick up the virus from infected plants and transmit it to healthy plants as they feed. Over 80 species of aphids can potentially transmit CMV.
Which is viral disease is transmitted by seed?
seed transmitted and the common mosaic virus is transmitted through both seed and pollen.
What is the pathogen of cucumber mosaic virus?
Cucumber mosaic virus (CMV) is a plant pathogenic virus in the family Bromoviridae. This virus has a worldwide distribution and a very wide host range, having the reputation of the widest host range of any known plant virus.
| Cucumber mosaic virus | |
|---|---|
| Genus: | Cucumovirus |
| Species: | Cucumber mosaic virus |
| Synonyms |
Can cucumber mosaic virus spread to other plants?
Watermelon mosaic virus infects legumes like clover. Cucumber mosaic virus can infect plants from over forty families, including vegetable crops like tomato, lettuce and spinach, flower crops like gladiolus, petunias, impatiens and rudbeckia, and a wide variety of weeds.
Is cucumber mosaic virus harmful to humans?
“These viruses are specific to plants and do not harm humans. The presence of mosaic won’t cause fruits to rot prematurely but severely distorted fruit will have a different texture, so use your own judgement.”
Where does mosaic virus come from?
Mosaic viruses can be spread by weeds, infected seeds, an infected plant, or certain insects. Mosaic virus overwinters on perennial weeds and is spread by insects that feed on them. Aphids, leafhoppers, whiteflies, and cucumber beetles are common garden pests that can transmit this disease.
Can mosaic virus live in soil?
In 1929 Johnson and Ogden (6) presented data showing that the tobacco mosaic virus overwintered naturally in the soil under Wis- consin conditions, and that tobacco transplanted to heavily infested soils developed much higher percentages of infection than did similar plants set in virus-free or slightly infested soils.
What causes mosaic virus in plants?
Mosaic viruses are mostly spread by insects, especially aphids and leafhoppers. You can try covering your plants with a floating row cover or aluminum foil mulches to prevent these insects from infecting your plants. Look at our other tips for controlling aphids.
What is seed transmission?
The capability of viruses to infect either the ovule or pollen grains systematically prior to fertilisation assists in seed transmission. Seed transmission is achieved either by direct invasion of the embryo via the ovule or by indirect invasion of the embryo, mediated by infected gametes.
Can seeds carry disease?
Seeds can transmit diseases from parent plants to succeeding generations, lowering their productivity and even completely preventing them from producing. Simple treatments exist, however, for controlling many seed-borne diseases.
How are viral diseases transmitted by vegetables?
Viruses can also be transmitted by other insects, mites, nematodes, fungi, infected pollen or vegetative propagating material, contact between plants, and infected or contaminated seeds.
What is the scientific name of cucumber mosaic virus?
Genus: Cucumovirus. Species: Cucumber mosaic virus.
What plants can get CMV?
Pathogen: Cucumber Mosaic Virus (CMV)
Hosts Include: Aconitum, Aster, Astilbe, Campanula, Coreopsis, Delphinium, Echinacea, Gypsophila, Helianthus, Heuchera, Hosta, Ligularia, Lilium, Lysimachia, Oenothera, Penstemon, Phlox, Primula, Scabiosa, Sedum, and Viola. Many annuals and vegetables are also susceptible.
How is cucumber mosaic virus diagnosed?
Symptoms associated with CMV infections:
- stunting.
- mosaic pattern of light and dark green (or yellow and green) on the leaves.
- malformation of leaves or growing points.
- yellow streaking of leaves (especially monocots)
- yellow spotting on leaves.
- ring-spots or line patterns on leaves or fruit.
- flower color breaking.
What does cucumber mosaic virus affect?
Cucumber mosaic virus (CMV) is one of the most common plant viruses, causing yellow mottling, distorted leaves and stunted growth in a wide range of garden plants, not just cucumbers.
Can plant viruses be cured?
Plant viruses can only be identified by lab testing. There is no cure for plant viruses, management actions should be focused on preventing virus spread.
How do you prevent TMV?
Several precautions can be taken to reduce the mechanical spread of viruses: avoid handling plants (plant seed rather than transplants), remove diseased plants, control weeds and rotate crops, and avoid planting near virus-infected plants. Do not smoke and handle plants or allow tobacco near the garden.
Can a virus jump from plant to human?
It is currently accepted that a strict separation exists between plant and vertebrate viruses regarding their host range and pathogenicity, and plant viruses are believed to infect only plants. Accordingly, plant viruses are not considered to present potential pathogenicity to humans and other vertebrates.
How quickly does mosaic virus spread?
Comments on the Disease
Cucumber mosaic virus is spread from plant-to-plant by many species of aphids. Aphids only retain the ability to transmit these viruses for very short periods of time (minutes to a few hours). Thus, spread is often very rapid and local.