The Inhibitory Activity of Extracts of Abutilon striatum Leaves on Plant Virus Infection

Effect of Kinetin on Tobacco Mosaic Virus and Potato Virus X Replication in Leaves of Systemic Hosts

“…The infectivity of leaf extracts might be affected by inhibitors which they contain (KASSANIS and KLECZKOWSKI 1948, GENDON and KASSANIS 1954, BAWDEN and PIRIE 1957, SIMONS et al 1963, MORAES et al 1974. In our experiments, kmetm did not affect the inhibiting properties of extracts, at least not m the dilutions in whidi tissue infectivity was evaluated.…”

Relation of Replication of Tobacco Mosaic Virus and Potato Virus X to Age in Detached Leaves of Nicotiana tabacum

“…Evaluation of virus content in plant tissue should take into account the fact that infectivity of leaf homogenates depends largely on the effect of inhibitors which they contain (GENDON and KASSANIS 1954, BAWDEN and PiRiE 1957, MoRAES et al 1974. In our experiments the inhibitory properties of homogenates of very young tissues from tip leaves and from more mature leaves in relation to purified preparations of TMV and PVX, in dilutions (10-' and 10^.…”