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Secretion and Composition of the Pollination Drop in the Cephalotaxus drupacea (Gymnosperm, Cephalotaxeae)

  • R. Seridi-Benkaddour
  • L. Chesnoy

Abstract

The pollination drop exudation on the micropylar orifice of the ovule ensures in numerous Gymnosperms the collecting of pollen grains and the first stages of their germination. The drop carries out a sorting of the wind-borne pollens and the contact of the male gametophyte with a female sporophyte product. This first contact often takes place before that of the pollen with the ovule tissues if the drop is completely external to the female organ. However little is known about the mechanism of the nucellar secretion and the composition of the pollination fluid.

Keywords

High Performance Liquid Chromatography Free Amino Acid Uronic Acid Male Gametophyte Pollination Drop 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • R. Seridi-Benkaddour
    • 1
  • L. Chesnoy
    • 1
  1. 1.Laboratoire des Membranes BiologiquesUniversité Paris VIIParis Cedex 05France

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