Inhibitors and plant viruses.

摘要: Publisher Summary The inhibitors of plant viruses may be classified into the infection and virus increase. are substances that, when inoculated to leaves simultaneously with viruses, prevent from occurring. increase applied already infected, retard rate at which infecting multiply. Although have been demonstrated mainly in extracts leaves, they also occur other parts plants such as all cucumber plants, except corolla; citrus tomato fruits; milk endosperm coconut. Inhibitors affect spread or that any way correlated host resistance. seem operate only transmissions by mechanical inoculation expressed sap, is not for most a usual method spread. There two rival schools thought about act. One has considered resistance act directly on particles themselves. include pyrimidine, purine analogues 2-thiouracil, 8-azaguanine. As both thiouracil 8-azaguanine metabolism enough change their external appearance, there obvious reason suspect inhibit multiplication affecting some host-cell mechanism rather than acting particles.