A hypercycle theory of proliferation of viruses and resistance to the viruses of transgenic plant

A set of dynamical equations for the proliferation of two typical viruses TMV and PVY has been derived from the reaction equations describing their replication, assembly and translation. These equations can be seen as the generalization of hypercycle theory to the system. The quantitative explanation on the phenomena of proliferation of plant virus and the mechanism of resistance to the disease of transgenic plant is offered. The phenomenon of specific cessation of minus-strand RNA accumulation in the proliferation of TMV, the cross-protection of plant viruses and the mechanism of resistance to viruses of transgenic plant are discussed based on the computer simulation of the proliferation of viruses and the prediction of the secondary structure of the genomic RNA. (C) 2000 Academic Press.