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Über die Sekretion saccharosespaltender Transglukosidasen im pflanzlichen Nektar

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Summary

The phloem sap ofRobinia Pseud-Acacia contains only sucrose and does not possess invertase activity. A sucrase is, however, present in nectar collected fromRobinia flowers: this enzyme identified as a transglucosidase, liberates greater amounts of fructose than of glucose from sucrose. Enzymic activity apparently commences 2–5 days before the flowers are fully open.

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References

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Authors and Affiliations

  1. Pflanzenphysiologisches Institut der ETH, Zürich

    M. Zimmermann

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  1. M. Zimmermann
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Additional information

Die vorliegenden Untersuchungen erfolgten im Rahmen der Arbeitsgemeinschaft Prof. Dr.A. Frey-Wyssling, Zürich, und Dr.A. Maurizio, Bern, mit Unterstützung der Fritz-Hoffmann-La-Roche-Stiftung zur Förderung wissenschaftlicher Arbeitsgemeinschaften in der Schweiz.

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Zimmermann, M. Über die Sekretion saccharosespaltender Transglukosidasen im pflanzlichen Nektar. Experientia 10, 145–146 (1954). https://doi.org/10.1007/BF02158524

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  • DOI: https://doi.org/10.1007/BF02158524

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