Adhesion and Cell Movement During Pollination: Cherchez La Femme

Trends Plant Sci. 2000 Sep;5(9):368-73. doi: 10.1016/s1360-1385(00)01744-1.

Abstract

Pollination involves an interaction between the female tissues (stigma, style and ovary) and the male gametophyte or the pollen tube cell, which contains the sperm cells. Freezing methods now allow us to visualize the extracellular matrices that guide pollen tubes to the ovary. Adhesion of the pollen tube to these specialized extracellular matrices might be a mechanism of guidance and tube cell movement in the style. In lily, the stylar adhesion molecules are a pectin and a small, basic cysteine-rich protein, both of which are necessary to induce tube cell adhesion to an artificial, in vitro style matrix.

Publication types

  • Review

MeSH terms

  • Amino Acid Sequence
  • Cell Adhesion
  • Cell Movement*
  • Cytoplasmic Streaming
  • Liliaceae / cytology
  • Liliaceae / physiology*
  • Liliaceae / ultrastructure
  • Molecular Sequence Data
  • Plant Epidermis / physiology
  • Plant Epidermis / ultrastructure
  • Pollen / growth & development
  • Pollen / physiology*
  • Pollen / ultrastructure
  • Reproduction