A comparative ultrastructural study of leaf parenchymal cells of potato varieties differing in degrees of affection with PVX systemic infection

摘要

A study was made of the ultrastructure of leaf cells of the potato varieties Priekulsky ranny and Dolinny systemically infected with potato virus X (PVX). The formation of PVX-induced laminated structures and the activation of lysosomal compartment were more obvious in reply to the infection in the more affected variety Priekulsky ranny in comparison with the variety Dolinny. Association of the observed virus-induced ultrastructural cell alterations with the restriction of virus accumulation and the degree of affection of investigated varieties is discussed.