1. Isolated pollen culture in tobacco: plant reproductive development in a nutshell

   • E. Heberle-Bors

   Review Pages: 1 - 10

2. Borate control of protein secretion from Petunia pollen exhibits critical temperature discontinuities

   • J. F. Jackson

   Original Articles Pages: 11 - 14

3. Evidence for spontaneous diploid androgenesis in Brassica napus L.

   • B. Y. Chen
   • W. K. Heneen

   Original Articles Pages: 15 - 17

4. Self-incompatibility of Zinnia angustifolia HBK (compositae)

   • R. R. Samaha
   • T. H. Boyle
   • D. L. Mulcahy

   Original Articles Pages: 18 - 26

5. Cytochalasin effects on structure and movement in the pollen tube of Iris

   • J. Heslop-Harrison
   • Y. Heslop-Harrison

   Original Articles Pages: 27 - 37

6. Breakdown of self-incompatibility during pistil development in Lycopersicon peruvianum by modified bud pollination

   • T. M. Gradziel
   • R. W. Robinson

   Original Articles Pages: 38 - 42

7. Solanum lycopersicoides gene introgression to tomato, Lycopersicon esculentum, through the systematic avoidance and suppression of breeding barriers

   • T. M. Gradziel
   • R. W. Robinson

   Original Articles Pages: 43 - 52

8. The effect of exogenous Ca²⁺ ions on pollen grain germination and pollen tube growth

   • E. Bednarska

   Original Articles Pages: 53 - 58

9. Plant cell biology 150 years after Matthias Schleiden

   • J. H. N. Schel

   Original Articles Pages: 59 - 64