1. Characterization and function of wall-bound exo-β-glucanases of Lilium longiflorum pollen tubes

   • Toshihisa Kotake
   • Y.-Q. Li
   • N. Sakurai

   Original Paper Pages: 1 - 9

2. Calcium changes in ovules and embryo sacs of Plumbago zeylanica L.

   • H. Q. Tian
   • H. Zhu
   • S. D. Russell

   Original Paper Pages: 11 - 20

3. The MADS box gene ZmMADS2 is specifically expressed in maize pollen and during maize pollen tube growth

   • Sigrid Heuer
   • Horst Lörz
   • T. Dresselhaus

   Original Paper Pages: 21 - 27

4. A Brassica napus skp1-like gene promoter drives GUS expression in Arabidopsis thaliana male and female gametophytes

   • J. Drouaud
   • Katia Marrocco
   • P. Guerche

   Original Paper Pages: 29 - 35

5. Effect of pollen competition and stigmatic receptivity on seed set in white clover (Trifolium repens L.)

   • A. A. Cowan
   • A. H. Marshall
   • T. P. T. Michaelson-Yeates

   Original Paper Pages: 37 - 42

6. Nuclear pore dynamics during pollen development and androgenesis in Brassica napus

   • K. R. Straatman
   • J. Nijsse
   • J. H. N. Schel

   Original Paper Pages: 43 - 51

7. Selective cell elimination during microsporogenesis in sedges

   • R. M. Ranganath
   • N. Rao Nagashree

   Perspective Pages: 53 - 60