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Kristallographische Interpretation der Feinstruktur der B-Granula in den Langerhansschen Inseln der Ringelnatter, Natrix n. natrix (L.)

Crystallographic interpretation of the ultrastructure of B-granules in the islets of langerhans of the grass-snake, Natrix n. natrix (L.)

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Zeitschrift für Zellforschung und Mikroskopische Anatomie Aims and scope

Summary

Crystalline B-granules of grass-snake islets of Langerhans have been shown to possess the shape of rhombic dodecahedra (a ≈ 11 nm, cubic body-centered lattice). Three-dimensional reconstructions from serial sections, optical diffractometry and comparison with crystal models were the techniques utilized. The significance of crystalline B-granules is discussed.

Zusammenfassung

Kristalline B-Granula im Pankreas der Ringelnatter besitzen die Form von Rhombendodekaedern (a ≈ 11 nm, kubisch-raumzentriertes Gitter). Diese Diagnose wird abgeleitet von den Ergebnissen der dreidimensionalen Rekonstruktion von Serienschnitten, der optischen Diffraktometrie und aus dem Vergleich mit Kristallmodellen. Die Bedeutung kristalliner B-Granula wird erörtert.

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Herrn Prof. Dr. med. Drs. h. c. W. Bargmann gewidmet.

Durchgeführt mit dankenswerter Unterstützung durch die Deutsche Forschungsgemeinschaft (La 229/3).

Fräulein D. Vaihinger, Gießen, danken wir für die Anfertigung von Kristallmodellen, den Herren Prof. Dr. R. Mosebach, Gießen, und Dr. J. T. Finch, Cambridge, für Diskussionen und Anregungen.

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Lange, R.H., Boseck, S. & Ali, S.S. Kristallographische Interpretation der Feinstruktur der B-Granula in den Langerhansschen Inseln der Ringelnatter, Natrix n. natrix (L.). Z.Zellforsch 131, 559–570 (1972). https://doi.org/10.1007/BF00306971

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  • DOI: https://doi.org/10.1007/BF00306971

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