%0 Journal Article %T Effect of Chitosan on Systemic Viral Infection and Some Defense Responses in Potato Plants %A Chirkov, S. %A Il'ina, A. %A Surgucheva, N. %A Letunova, E. %A Varitsev, Yu. %A Tatarinova, N. %A Varlamov, V. %J Russian Journal of Plant Physiology %V 48 %N 6 %P 774-779 %@ 1021-4437 %D 2004-10-10 %I Kluwer Academic Publishers-Plenum Publishers %~ DeepDyve