5/7/2023 0 Comments Synonym for misshapenCMV infects over 1200 plant species, including important crops and ornamental species. As consequences, the virus is easily spread, and can be found worldwide. 2 Cucumber mosaic virus inclusion bodiesĬMV is non-persistently non-circulatively transmitted by more than 80 different aphid species, among other vectors. These inclusions are made up of virus particles.įig. The inclusions are not uniformly distributed and can be found in epidermal (Fig. The inclusions can also be rhomboidal, may appear hollow (Fig. 2) and stain both in a protein stain and a nucleic acid stain. In plant tissue this virus makes characteristic viral inclusion bodies which can be diagnostic. CMV was also detected on American beautyberry, an important wildlife and pollinator food source plant native to North America. Genetically, the two onion isolates from Turkey (CMV-14.3Po and CMV-15.5Po) are highly similar to others isolated from various plant species in Mediterranean, European, and East Asian countries. The severe damages on garlic plants and difficulty of aphids transmission of garlic isolate, were possible causal for the rare CMV on garlic. The virus infection causes extensive malformation on garlic plants, and mild malformation to severe necrotic streaks on onion leaves. It is found to be a minor virus infecting Allium crops. ĬMV has also been identified in a lesser extent to a number of plant species. Symptoms of CMV in lettuce, such as chlorosis, plant stunting and often do not properly head, can be very similar to those of lettuce mosaic virus. In celery, CMV causes streaking and spotting and can be often confused with symptoms of the celery mosaic virus. Often the peppers themselves are misshapen and contain chlorotic rings and spots. Pepper plants often have severe foliar damage, shown as mosaic and necrotic rings. CMV in peppers causes slightly different symptoms than the previously mentioned. Also certain strains of CMV can cause partial or total crop loss. Tomato plants are usually stunted and have poorly shaped leaves, or "fernleaf", when infected by CMV. These appearances lead to them being referred to as "white pickles". Often, cucumber fruits are oddly shaped, appear gray, and tested bitter. Growth of these plants is usually also stunted and produces few flowers. The leaves of these plants turn mosaic and their rugosity is often changed, making leaves wrinkled and misshapen. Specifically, CMV can cause cucumbers to turn pale and bumpy. This effect causes young leaves to appear narrow and the entire plant to be stunted. CMV also induces a type of symptom on leaves known as the "shoestring" effect on many host species. 1), yellowing, ringspots, stunting, and leaf, flower and fruit distortion. Symptoms seen with this virus include leaf mosaic or mottling (Fig. Its presence has been confirmed on every continent of the world, including Antarctica. These include other vegetables such as squash, melons, peppers, eggplants,tomatoes, beans, carrots, celery, lettuce, spinach, beets, many ornamentals and bedding plants, such as Narcissus, and various weeds. Since then, it has been found to infect a great variety of other plants. This virus was first characterized in cucumbers ( Cucumis sativus) showing mosaic symptoms in 1934, hence the name Cucumber mosaic.
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