1. Trimorphic incompatibility in Eichhornia azurea (Pontederiaceae)

   • M. Bianchi
   • J. Vesprini
   • S. C. H. Barrett

   Original Paper Pages: 203 - 208

2. Switch (swi1), an Arabidopsis thaliana mutant affected in the female meiotic switch

   • J. C. Motamayor
   • D. Vezon
   • C. Horlow

   Original Paper Pages: 209 - 218

3. Fertility of exceptional bisexual individuals in four dioecious plant species

   • A. Rottenberg

   Original paper Pages: 219 - 221

4. Influence of pollen selection for Alternaria helianthi resistance on the progeny performance against leaf blight in sunflower (Helianthus annuus L.)

   • S. B. Chikkodi
   • R. L. Ravikumar

   Original Paper Pages: 222 - 226

5. Using S-locus deletions to evaluate self-incompatibility candidate genes: an example for a novel anther-expressed gene

   • A. L. Casselman
   • M. E. Nasrallah
   • J. B. Nasrallah

   Original Paper Pages: 227 - 231

6. Kanamycin resistance of germinating pollen of transgenic plants

   • Yu. V. Chesnokov
   • R. Manteuffel

   Original Paper Pages: 232 - 236

7. Rapid-freeze fixation and substitution improves tissue preservation of microspores and tapetum in Brassica napus

   • J. H. E. Ross
   • C. Milanesi
   • Mauro Cresti

   Short communication Pages: 237 - 240

8. A new procedure to asses pollen viability

   • T. Rodriguez-Riano
   • A. Dafni

   Short Communication Pages: 241 - 244

9. Dioecious Silene at the X-road: the reasons Y

   • F. Monéger
   • N. Barbacar
   • I. Negrutiu

   Commentary Pages: 245 - 249

10. Molecular characterization of an anther-specific gene from tobacco shows sequence similarity to a tapetum-specific gene from tomato

    • S. I. Fuerstenberg
    • P. B. Bucciaglia
    • A. G. Smith

    Sequence Update Pages: 250 - 252