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Morphologie ultrastructurale des dictyosomes dans les cellules des meristemes radiculaires d'Allium sativum L.: effets du barbital

The effect of barbital on golgi bodies in meristematic root tip cells of allium sativum L.

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Summary

In meristematic root tip cells of Allium sativum L. treatment with barbital under appropriate conditions results in a marked increase in the number of Golgi cisternae and a progressive decrease in the rate of release of Golgi vesicles. Connections between endoplasmic reticulum and Golgi bodies, indicated by OsO4 staining, which presumably involve transitional vesicles are not disrupted. The significance of multivesicular bodies containing small Golgian vesicles is discussed. The results show that formation of Golgi cisternae from endoplasmic reticulum is still possible but that their maturation with production of elaborated substances is progressively inhibited.

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Authors and Affiliations

  1. Laboratoire de Biologie cellulaire, Faculté des Sciences pharmaceutiques et biologiques, Université René-Descartes, 4 A venue de l'Observatoire, F-75270, Paris Cedex 06, France

    M.-C. Benbadis & G. Deysson

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  1. M.-C. Benbadis
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  2. G. Deysson
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Benbadis, MC., Deysson, G. Morphologie ultrastructurale des dictyosomes dans les cellules des meristemes radiculaires d'Allium sativum L.: effets du barbital. Planta 123, 283–290 (1975). https://doi.org/10.1007/BF00390707

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  • DOI: https://doi.org/10.1007/BF00390707

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