Abstract
Ultrathin sections were prepared from the tissues of lettuce leaves with mosaic-like symptoms and thickened nervature which were studied by means of electron microscopy. Intracellular inclusions surrounded by a membrane were found in the cytoplasm of parenchym cells of the investigated lettuce leaves(Lactuca saliva L. provar.capitata L. nid.jaggeri Helm., cv. Pražan). Crystals with a distinctly apparent hexagonal lattice could be observed in the inclusions. No crystal containing inclusions were found in the tissues from the leaves without mosaic-like symptoms and in those from thickened nervature.
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Chod, J., Polák, J., Novák, M. et al. Intracytoplasmatic inclusions in cells of lettuce leaves with mosaic-like symptoms. Biol Plant 15, 364–366 (1973). https://doi.org/10.1007/BF02922453
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DOI: https://doi.org/10.1007/BF02922453