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Pyridoxin-abhängige Veränderungen im chemischen Aufbau der Hyphen vonNeurospora sitophila

Changes in chemical composition ofNeurospora sitophila hyphae induced by pyridoxine deficiency

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Summary

With rising concentrations of pyridoxine in culture mediumNeurospora sitophila 299 (pyridoxineless) shows a significant increase of the relative amounts of protein, cell wall substances (incl. chitin), and ash, and a decrease of RNA and DNA. The lipid contents remain unchanged. The diameters of pyridoxine deficient hyphae are significantly greater than those of normal hyphae. Electron microscopic examination shows that B6-deficient cells do not contain a thinner or thicker than normal cell wall layer external to the membrane.

Zusammenfassung

Neurospora sitophila 299 (pyridoxinbedürftig) zeigt mit steigendem Angebot an Pyridoxol · HCl im Medium statistisch gesicherte Zunahmen an Protein, Zellwandsubstanzen (einschließlich Chitin) und Asche sowie Abnahmen an RNA und DNA. Der Lipidgehalt ist vom Pyridoxolangebot unabhängig. Der Durchmesser der Hyphen ist im Pyridoxinmangel statistisch signifikant größer als bei ausreichenden Gaben. Bei elektronenmikroskopischer Betrachtung gibt es keinen Anhalt für Pyridoxin-induzierte Veränderungen der Zellwandstärke.

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Authors and Affiliations

  1. Physiologisch-chemisches Institut der Karl Marx-Universität, Leipzig

    H. Aurich, W. Neumann & U. Fuchs

  2. Pathologisches Institut der Karl Marx-Universität, Leipzig

    H. Aurich, W. Neumann & U. Fuchs

Authors
  1. H. Aurich
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  2. W. Neumann
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  3. U. Fuchs
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Aurich, H., Neumann, W. & Fuchs, U. Pyridoxin-abhängige Veränderungen im chemischen Aufbau der Hyphen vonNeurospora sitophila . Archiv. Mikrobiol. 61, 30–39 (1968). https://doi.org/10.1007/BF00704289

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  • DOI: https://doi.org/10.1007/BF00704289

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