Experientia

, Volume 10, Issue 12, pp 490–492

Über den enzymatischen Zuckerumbau in Nektarien

  • A. Frey-Wyssling
  • M. Zimmermann
  • A. Maurizio
Kurze Mitteilungen

DOI: 10.1007/BF02166174

Cite this article as:
Frey-Wyssling, A., Zimmermann, M. & Maurizio, A. Experientia (1954) 10: 490. doi:10.1007/BF02166174

Summary

The nectaries ofEuphorbia pulcherrima secrete small quantities of invertase. This secretion is more independent of environmental factors than the production of sugar sap. Floating on C14-glucose the nectaries transform this sugar into fructose and saccharose. From these statements it is concluded that the nectaries are not merely valvelike organs for the exsudation of phloem sap, but that they represent real glands with a characteristic active metabolism.

Copyright information

© Birkhäuser Verlag 1954

Authors and Affiliations

  • A. Frey-Wyssling
    • 1
    • 2
  • M. Zimmermann
    • 1
    • 2
  • A. Maurizio
    • 1
    • 2
  1. 1.Institut für allgemeine Botanik der Eidg. Technischen Hochschule ZürichSwitzerland
  2. 2.Bienenabteilung der Eidg. Versuchsanstalt LiebefeldBern
  3. 3.Harvard University, Cabot FoundationPetershamUSA