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The studies focus on an ultrastructural analysis of the phenomenon of intercellular and systemic (vascular) transport of tobacco rattle virus (TRV) in tissues of the infected plants. TRV is a dangerous pathogen of cultivated and ornamental plants due to its wide range of plant hosts and continuous transmission by vectors—ectoparasitic nematodes. Two weeks after infection with the PSG strain of TRV,...
The contents of the heterogenous group of polyisoprenoids was found about two orders of magnitude lower in seeds than the amount of polyprenols and/or their carboxylic esters accumulated during vegetation season in leaves. In contrast to leaves, no seeds were found containing more than 0.5 mg of these lipids per gram of dry tissue. Almost 50% had less than 0.01 mg/g — the amount which is the limit...
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