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Sporogenesis and Pollen Grain Formation

  • Brigitte Buchen
  • A. Sievers
Part of the Cell Biology Monographs book series (CELLBIOL, volume 8)

Abstract

Pollen grains and the spores of nonseed vascular plants1 develop from diploid somatic cells in a largely identical way. Ultimately, the cells are characterized by a highly ordered cell wall, the so-called sporoderm (Figs. 1 and 2). Both the chemical and the principal ultrastructural features of sporoderms show little Variation in different taxa, although the sculpture, number, and thickness of the individual wall layers display species-specificity. Fig. 3 shows a schematic cross section of a sporoderm and the surface view of a tectum, using in part the terminology proposed by Erdtman (1952).

Keywords

Pollen Tube Pollen Wall Callose Deposition Golgi Vesicle Callose Wall 
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.

Abbreviations

CW

callosic spore mother cell wall

D

dictyosome

ER

endoplasmic reticulum

GV

Golgi vesicle

N

nucleus

NE

nexine

PA-TCH-SP

periodic acid-thiocarbohydrazide-silver proteinate treatment for the localization of acidic and neutral Polysaccharides (Thiery 1967)

PM

plasma membrane

S

septum

SE

sexine

SMC

spore mother cell

SP

sporoderm

W

wart

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Copyright information

© Springer-Verlag/Wien 1981

Authors and Affiliations

  • Brigitte Buchen
    • 1
  • A. Sievers
    • 1
  1. 1.Botanical InstituteUniversity of BonnBonnFederal Republic of Germany

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