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Plum pox, also known as sharka, is the most devastating viral disease of stone fruit from the genus Prunus.The disease is caused by the plum pox virus (PPV), and the different strains may infect a variety of stone fruit species including peaches, apricots, plums, nectarine, almonds, and sweet and tart cherries.
genus Tobamovirus, Cucumber green mottle mosaic virus. Line pattern & Necrotic ring spot genus Ilarvirus, Prunus necrotic ringspot virus (PNRSV) Peach mosaic genus Trichovirus, Cherry mottle leaf virus (CMLV) Plum pox (= Sharka) genus Potyvirus, Plum pox virus (PPV) Prunus stem pitting genus Nepovirus, Tomato ringspot virus (ToRSV) Pseudopox
Potyvirus is a genus of positive-strand RNA viruses (named after its type species, Potato virus Y (Potyvirus yituberosi, PVY)) in the family Potyviridae. Plants serve as natural hosts. Like begomoviruses, members of this genus may cause significant losses in agricultural, pastoral, horticultural, and ornamental crops.
Positive-stranded RNA virus transcription is the method of transcription. Translation takes place by −1 ribosomal frameshifting. The virus exits the host cell by tubule-guided viral movement. [4] [5] Plants serve as the natural host. The virus is transmitted via a vector (often an insect or mite). Transmission routes are vector and mechanical ...
The virus survives in the soil within the Spongospora fungus and spreads to other areas within the vector spores. Regarding the control of this disease, treatment of infected soil with fungicides can prevent infection of a healthy crop by eradicating the virus vector. Discarding diseased plants is an effective control measure in highly ...
Potato virus U: genus Nepovirus, Potato virus U (PVU) Potato virus V: genus Potyvirus, Potato virus V (PVV) Potato virus X: genus Potexvirus, Potato virus X (PVX) Potato virus Y: genus Potyvirus, Potato virus Y (PVY) Solanum apical leaf curling virus: Geminiviridae, Solanum apical leaf curling virus (SALCV) subgroup III Sowbane mosaic virus
Microscopic slide showing the monkeypox virus. Monkeypox cases in Florida, especially South Florida, have surged since late May, part of a worldwide epidemic of more than 6,000 cases.
Generally, symptoms of PNRSV appear in the year following infection, and then becomes symptomless, [11] although some strains cause recurrent symptoms annually. Although adult trees can show recovery from initial symptoms, keeping young trees virus-free is important because the virus can cause long-lasting stunting compared to healthy trees. [ 11 ]