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BIOLOGICAL
CHARACTERIZATION OF PAKISTANI ISOLATES OF CUCUMBER MOSAIC
CUCUMOVIRUS (CMV)
SHOMAILA IQBAL1,
MUHAMMAD ASHFAQ1* AND HUSSAIN SHAH2
Abstract:
Cucumber
mosaic virus
(CMV) can be
transmited mechanically as well as biologically through insect vector (Aphis
gossypii). CMV has a wide host range particularly it infects
Solanaceous crops. Sixty one different hosts were tested against
Pakistani isolates of CMV, among them only 33 hosts were found to be
infected with CMV upon inoculation while rest remained asymptomatic and
showed negative response to ELISA test. Weed flora was also tested as an
alternate host of CMV. Datura stramonium, Datura metal, Portulaca
olercea (Kulfa), Cyprus rotundus (Deela) and Trianthema
pentandra (itsit) showed positive reaction to CMV infection.
Different inocula of CMV were applied on test plants/indicator hosts and
only Chenopodium quinoa was found to be susceptible to CMV
infection while Nicotiana tabacum cv. samsum remained resistant
to each tested isolate under controlled conditions.
1Department
of Plant Pathology, PMAS- Arid Agriculture University, Rawalpindi,
Pakistan.
2Crop
Disease Research Programme, National Agriculture Research Center, Park
Road, Islamabad, Pakistan.
*Corresponding author:
mashfaq1642@gmail.com
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