THE IMPORTANCE OF THE HOST SPECIES IN DETERMINING THE ACTION OF VIRUS INHIBITORS

Abstract
Some plant species from which viruses are difficult to transmit to other species by sap inoculation contain substances that inhibit infection. The extent to which infection is inhibited by these substances depends on the species of plants to which inoculations are made and not on the identity of the virus. The inhibitors are largely ineffective in preventing infection of the species which contain them.Infection of cucumber was less affected than any of the other species by all the inhibitors tested.