Plant Systematics and Evolution

, Volume 138, Issue 3, pp 263–274

Ultrastructure of the stylar canal cells ofCitrus limon (Rutaceae)

  • Fabrizio Ciampolini
  • Mauro Cresti
  • Giacomino Sarfatti
  • Antonio Tiezzi
Article

DOI: 10.1007/BF00985190

Cite this article as:
Ciampolini, F., Cresti, M., Sarfatti, G. et al. Pl Syst Evol (1981) 138: 263. doi:10.1007/BF00985190

Abstract

The ultrastructure of the canal cells and the canal filling substance ofCitrus limon have been studied. At maturity the canal cells are very rich in cytoplasm. Their inner tangential walls lining the canal are much thickened and formed by two layers: the outer corresponds to the original wall, the inner is formed by subsequent deposition of abundant materials of different origin. This thickening occurs at the same time as the filling of the stylar canal. Both events are paralleled by considerable dictyosomic activity, the formation of a large amount of rough endoplasmic reticulum, and the incorporation of small cytoplasmic masses into the cell wall, due to plasmalemma evaginations. — The material in the stylar canal has a heterogeneous ultrastructure aspect and consists of polysaccharides, proteins and lipids; it presumably provides nutrients for the growing pollen tubes.

Key words

Angiosperms Rutaceae Citrus limon Style canal cells canal filling substance ultrastructure anatomy 

Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • Fabrizio Ciampolini
    • 1
  • Mauro Cresti
    • 1
  • Giacomino Sarfatti
    • 1
  • Antonio Tiezzi
    • 1
  1. 1.Istituto di Botanica dell'UniversitàSienaItaly

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