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Elektronenmikroskopische Befunde zur Differenzierung der Rezeptorzellen und Bipolarzellen der Retina und ihrer synaptischen Verbindungen

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Summary

The differentiation of the bird's retina is described, paying special attention to the development of synapses and bipolar cells. The structural differentiation of receptor cells and bipolars, the topography and the time sequence of synaptic development has been studied in embryonic material ranging from 6 to 21 days of incubation.

Due to the intimate interdigitation of opposing cell membranes in contact with each other, the formation of specialized contacts (synapses) occurs at selected places and shows special features. Their differentiation is characterized by a) accumulation of electrondense material close to the pre- and postsynaptic membrane, b) the presence of large numbers of synaptic vesicles initially perinuclear and moving later in the cytoplasmatic presynaptic processes, c) a special type of synaptic lamella surrounded by vesicles.

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Authors and Affiliations

  1. Institut für Histologie und experimentelle Neuroanatomie der Universität Göttingen, Deutschland

    K. Meller

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  1. K. Meller
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Ich danke der Deutschen Forschungsgemeinschaft und der Volkswagenstiftung für ihre Unterstützung, FräuleinCh. Kiele und FräuleinE. Möhring für die technische Assistenz.

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Meller, K. Elektronenmikroskopische Befunde zur Differenzierung der Rezeptorzellen und Bipolarzellen der Retina und ihrer synaptischen Verbindungen. Z.Zellforsch 64, 733–750 (1964). https://doi.org/10.1007/BF01258546

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  • DOI: https://doi.org/10.1007/BF01258546

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