Abstract
Dot-blot hybridization, using nine recombinant plasmids containing clover proliferation (CP) mycoplasmalike organism (MLO) DNA segments, showed that the cloned CP MLO-specific DNA probes hybridized with DNA isolated from CP MLO and potato witches-broom (PWB) MLO-infected periwinkle plants, but not with DNA extracted from healthy periwinkle plants nor from those infected by MLOs associated with clover phyllody (CPD), hydrangea virescence (HV), eastern aster yellows (EAY), and western aster yellows (AY27) (...)
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