Living cells of Euglena gracilis were exposed to ferritin-coupled concanavalin A and the intracellular distribution of the opaque tracer was examined by electron microscopy. The conjugate entered 15–20% of the organisms and the lectin binding occurred around the chloroplasts and within the chromosomes. A possible relationship between the lectin-chromosome interaction and the mitogenic activity exerted by concanavalin A on Euglena cells is discussed.
Ultrastructural localization of concanavalin A binding sites in intact cells of Euglena gracilis
PANCALDI, Simonetta;BONORA, Angelo;
1983
Abstract
Living cells of Euglena gracilis were exposed to ferritin-coupled concanavalin A and the intracellular distribution of the opaque tracer was examined by electron microscopy. The conjugate entered 15–20% of the organisms and the lectin binding occurred around the chloroplasts and within the chromosomes. A possible relationship between the lectin-chromosome interaction and the mitogenic activity exerted by concanavalin A on Euglena cells is discussed.File in questo prodotto:
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