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Beet curly top virus (BCTV) is a pathogenic plant virus of the family Geminiviridae, containing a single-stranded DNA. [3] The family Geminiviridae consists of nine genera (Becurtovirus, Begomovirus, Capulavirus, Curtovirus, Eragrovirus, Grablovirus, Mastrevirus, Topocuvirus, Turncurtovirus) [4] based on their host range, virus genome structure, and type of insect vector. [5]
So far, the beet leafhopper is the only known vector of the Beet curly top virus, which spreads through plant phloem tissues. [5] Therefore, researchers conducted electrical penetration graph experiments of leaf hoppers in which they wired beet leafhoppers to an EPG machine and characterized the types of waveforms produced.
Beet leafhopper only need few minutes in feeding period to transfer the virus into new plants. Plants begin to show symptoms about 7 to 14 days after they are first infected by a leafhopper. Tomato is not a preferred host for the beet leafhopper; however, the leafhoppers transmit the virus to tomato while sampling it.
Stanislaus and Merced, Madera, Fresno, Kings and Kern counties have declared emergencies to control beet curly top virus. Beet leafhoppers can infect about 300 plant species, including vegetable ...
Mastrevirus and curtovirus transmission is via various leafhopper species (e.g. maize streak virus and other African streak viruses are transmitted by Cicadulina mbila), the only known topocuvirus species, Tomato pseudo-curly top virus, is transmitted by the treehopper Micrutalis malleifera, and begomoviruses are transmitted by the whitefly ...
The beet leafhopper (Circulifer tenellus) can transmit the beet curly top virus to various members of the nightshade family, including tobacco, tomato, or eggplant, and is a serious vector of the disease in chili pepper in the Southwestern United States.
According to Russo, leafhopper numbers in northern Argentina are 10 times the normal level, while the insect has been found nearly 1,500 kilometers (932 miles) south of traditional areas, where ...
Replication follows the ssDNA rolling circle model. Dna templated transcription is the method of transcription. The virus exits the host cell by nuclear pore export, and tubule-guided viral movement. Dicotyledonous plants serve as the natural host. The virus is transmitted via a vector (beet leafhopper). Transmission routes are vector. [1]