1. Differences in the initiation of the zygotic and parthenogenetic pathway in the Salmon lines of wheat: ultrastructural studies

   • T. N. Naumova
   • F. Matzk

   ORIGINAL PAPER Pages: 121 - 130

2. Distribution of calmodulin protein and mRNA in growing pollen tubes

   • A. Moutinho
   • J. Love
   • R. Malhó

   ORIGINAL PAPER Pages: 131 - 139

3. Altered expression of flowering class B and class C genes in the Appendix tobacco mutant

   • Anne Schoendorf
   • Roberte Bronner
   • François Bernier

   ORIGINAL PAPER Pages: 140 - 147

4. Unexpected DNA content in the endosperm of Cupressus dupreziana A. Camus seeds and its implications in the reproductive process

   • C. Pichot
   • Agnès Borrut
   • Mohamed El Maâtaoui

   ORIGINAL PAPER Pages: 148 - 152

5. Detection and inheritance of stylar ribonucleases associated with incompatibility alleles in apricot

   • L. Burgos
   • O. Pérez-Tornero
   • E. Olmos

   ORIGINAL PAPER Pages: 153 - 158

6. β-Glucuronidase gene and green fluorescent protein gene expression in de-exined pollen of Nicotiana tabacum by microprojectile bombardment

   • J. Wang
   • H. Z. Shi
   • R. D. Zhang

   ORIGINAL PAPER Pages: 159 - 162

7. Transient expression of the green fluorescent protein in pollen

   • Noah L. Keller
   • D. A. Hamilton

   ORIGINAL PAPER Pages: 163 - 165

8. Selective fruit filling in relation to pollen load size in Alstroemeria aurea (Alstroemeriaceae)

   • Marcelo A. Aizen
   • K. B. Searcy

   ORIGINAL PAPER Pages: 166 - 170

9. The fusion of sperm cells and the function of male germ unit (MGU) of tobacco (Nicotiana tabacum L.)

   • Hui Qiao Tian
   • S. D. Russell

   ORIGINAL PAPER Pages: 171 - 176

10. A rapid and simple procedure to determine stigma receptivity

    • A. Dafni
    • Marcia Motte Maués

    SHORT COMMUNICATION Pages: 177 - 180

11. A comparison of the promoter regions of three pollen-specific genes in alfalfa

    • Yongzhong Wu
    • Filipe Pereira
    • L. Erickson

    SEQUENCE UPDATE Pages: 181 - 182