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Ultrastructure de l'endostyle de l'ascidie Microcosmus claudicans Savigny

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Résumé

L'endostyle de l'Ascidie Microcosmus claudicans (Savigny) contient 8 types cellulaires groupés en bandelettes longitudinales. Les cellules I sont mucipares et ciliées; les cellules III et V ciliées sont vectrices du mucus.

Les cellules II et IV des bandelettes glandulaires sont très riches en ergastoplasme et renferment des grains de sécrétion apicaux d'aspect analogue. Les cellules VI également riches en ergastoplasme se distinguent des précédentes par leurs grains de sécrétion en forme de batonnet. Les cellules VII. iodophiles, sont caractérisées par leurs nombreux grains de lipopigment et leurs filaments intracytoplasmiques.

Les fonctions des cellules II, IV, VI et VII sont inconnues.

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Authors and Affiliations

  1. Faculté des Sciences, Laboratoire de Biologie Générale, France

    Claude Levi & Aimé Porte

  2. Faculté de Médecine de Strasbourg, Institut d'Anatomie Pathologique, France

    Claude Levi & Aimé Porte

  3. Dépt. Appl. Biol. C.R.N. Strasbourg, France

    Claude Levi & Aimé Porte

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  1. Claude Levi
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  2. Aimé Porte
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Levi, C., Porte, A. Ultrastructure de l'endostyle de l'ascidie Microcosmus claudicans Savigny. Zeitschrift für Zellforschung 62, 293–309 (1964). https://doi.org/10.1007/BF00339282

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  • DOI: https://doi.org/10.1007/BF00339282

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