Alfalfa Mosaic Virus | USU - Utah State University Extension
Alfalfa mosaic virus (AMV) is in the genus Alfamovirus and is spread by aphids. Symptoms. Yellow mosaic or calico patterns occur on the foliage. Some strains of AMV can cause severe stunting of plants and tuber necrosis. Sometimes corky or brown areas will develop in potato tubers. Disease Cycle. The virus is commonly found in alfalfa.
Alfalfa mosaic virus - Wikipedia
Alfalfa mosaic virus (AMV), also known as Lucerne mosaic virus or Potato calico virus, is a worldwide distributed phytopathogen that can lead to necrosis and yellow mosaics on a large variety of plant species, including commercially important crops.
Alfalfa Mosaic Virus | USU - Utah State University Extension
DESCRIPTION. Alfalfa mosaic virus (AMV) is in the genus Alfamovirus and is spread by aphids. BIOLOGY. The virus is commonly found in alfalfa. Aphids feed on infected alfalfa, acquire the virus, and transmit it to healthy potato plants. Aphids need to feed on another infected plant to spread the disease again. The virus is not seedborne in potatoes.
Calico (Alfalfa Mosaic) - CropWatch
CropWatch. Calico (Alfalfa Mosaic) Symptoms. Leaves of infected plants are very noticeable, clearly stand out in a field. They are bright yellow with a smooth surface, often shiny. Tubers may mis-shape and crack. The pathogen is the Alfalfa Mosaic Virus (AMV) and it is carried by many aphids affecting alfalfa and clover, and sometimes around wheat.
Identification, Characterization, and Molecular Detection of Alfalfa …
Feb 16, 2007 · Alfalfa mosaic virus (AMV) was detected in potato fields in several provinces in Canada and characterized by bioassay, enzyme-linked immunosorbent assay, and reverse-transcription polymerase chain reaction (RT-PCR). The identity of eight Canadian potato AMV isolates was confirmed by sequence analysis of their coat protein (CP) gene.
Occurrence of Alfalfa Mosaic Virus in Potato - Plant Disease
Oct 20, 2019 · Alfalfa mosaic virus (AMV) is transmitted by aphids, has a wide host range, and is common worldwide (Jaspars and Bos 1980). In potato (Solanum tuberosum L.), AMV is the cause of the “calico” disease visible as bright chlorotic spots in the foliage and is often associated with tuber necrosis in susceptible cultivars (Nie et al. 2015). In ...
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Alfalfa Mosaic Virus
On alfalfa, virus infection may cause yellow mottling or streaking on leaves, but at other times the symptoms are masked and leaves appear normal (Davis et al., 2017). On potato, the disease is called “calico”. Calico symptoms are pale to bright yellow blotches on leaves.
Alfalfa mosaic virus (AMV) was detected in potato fields in several provinces in Canada and characterized by bioassay, enzyme-linked immunosorbent assay, and reverse-transcription polymerase chain reac-tion (RT-PCR). The identity of eight Canadian potato AMV isolates was confirmed by sequence analysis of their coat protein (CP) gene.
Biological and Molecular Characterization of Potato Infecting Alfalfa ...
Alfalfa Mosaic Virus (AMV) was isolated from naturally infected potato (Solanum tuberosum, L. cv. Spunta) plants, showing bright yellow blotching or mottling Calico and aucuba symptoms suspected to be due to virus infection. Leaf samples were collected from different localities in Minufyia Governorate, Egypt.
Identification, Characterization, and Molecular Detection of Alfalfa …
ABSTRACT Alfalfa mosaic virus (AMV) was detected in potato fields in several provinces in Canada and characterized by bioassay, enzyme-linked immunosorbent assay, and reverse-transcription polymerase chain reaction (RT-PCR).