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Survey of susceptibility of cowpea mosaic virus protoplasts and intact plants from vigna sinensis lines



Survey of susceptibility of cowpea mosaic virus protoplasts and intact plants from vigna sinensis lines



Phytopathology 67(7): 917-921



One thousand thirty-one lines of V. sinensis (cowpea) were surveyed for response to mechanical inoculation of the SB isolate of the yellow subgroup of cowpea mosaic virus on the primary leaves of seedlings. Sixty-five lines (6.3% of the total) were classified as operationally immune because no symptoms were observed and no virus was recovered at 7-12 days after the inoculation with purified virus at a concentration which was 100 times that which would uniformly infect susceptible lines. Protoplasts were recovered from primary leaves of 55 of the immune lines. Protoplasts from 54 of the immune lines proved to be susceptible to the SB isolate.

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