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Evidence for a mixed infection of spiroplasmas and nonhelical mycoplasmalike organisms in cherry with X-disease

, : Evidence for a mixed infection of spiroplasmas and nonhelical mycoplasmalike organisms in cherry with X-disease. Phytopathology 73(2): 357-360

A contribution to a discussion: Fastidious prokaryotes as plant pathogens. Spiroplasmas were isolated from 4 and 5% of total samples from individual Green Valley X-diseased cherry trees in 2 orchards in San Joaquin County, Calif. in 1980; however, 53 and 78% of diseased trees in the orchards yielded spiroplasmas at some time of the year. In 1981, spiroplasmas were isolated from 40% of diseased trees and 60% of healthy trees in one orchard.


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