1. Regeneration of protoplast-derived green plants of Kentucky blue grass (Poa pratensis L.)

   • Kirsten Annette Nielsen
   • Else Larsen
   • Elisabeth Knudsen

   OriginalPaper Pages: 537 - 540

2. Factors affecting protoplast yield of the carrageenophyte Solieria filiformis (Gigartinales, Rhodophyta)

   • Juan Luis Gómez Pinchetti
   • Mats Björk
   • Guillermo García Reina

   OriginalPaper Pages: 541 - 545

3. Plant regeneration from protoplasts of peppermint (Mentha piperita L.)

   • Hiroshi Sato
   • Sueo Enomoto
   • Yoshio Ito

   OriginalPaper Pages: 546 - 550

4. Rol genes alter hormonal requirements for protoplast growth and modify the expression of an auxin responsive promoter

   • Richard Walden
   • Inge Czaja
   • Jeff Schell

   OriginalPaper Pages: 551 - 554

5. Selection of anthocyanin-accumulating potato (Solanum tuberosum L.) cell lines from calli derived from seedlings produced by gamma-irradiated seeds

   • Mikhajlo K. Zubko
   • Karl Schmeer
   • H. Ulrich Seitz

   OriginalPaper Pages: 555 - 558

6. Acetosyringone and osmoprotectants like betaine or proline synergistically enhance Agrobacterium-mediated transformation of apple

   • David J. James
   • Sandra Uratsu
   • Abhaya M. Dandekar

   OriginalPaper Pages: 559 - 563

7. Factors affecting in vitro maturation of isolated maize microspores

   • Isabelle Dupuis
   • Gary M. Pace

   OriginalPaper Pages: 564 - 568

8. Plant regeneration from mesophyll-protoplasts of four different ecotypes and two marker lines from Arabidopsis thaliana using a unique protocol

   • Johannes Siemens
   • María Torres
   • María Dolores Sacristán

   OriginalPaper Pages: 569 - 572

9. Subcellular localization of tryptophan decarboxylase, strictosidine synthase and strictosidine glucosidase in suspension cultured cells of Catharanthus roseus and Tabernaemontana divaricata

   • Lucas H. Stevens
   • Theo J. M. Blom
   • Robert Verpoorte

   OriginalPaper Pages: 573 - 576

10. Effect of acetone in the culture medium on the regeneration efficiency and on the resistance to root rot of regenerants of various plant species

    • Valentina A. Vnuchkova
    • Isabella I. Maryakhina
    • Galina I. Eisner

    OriginalPaper Pages: 577 - 580

11. Embryogenesis in suspension cultures of Datura innoxia Mill.

    • Vijendra K. Sharma
    • Vidya Jethwani
    • S. L. Kothari

    OriginalPaper Pages: 581 - 584

12. Optimization of biolistic transformation of embryogenic grape cell suspensions

    • Dominique Hébert
    • Julie R. Kikkert
    • Bruce I. Reisch

    OriginalPaper Pages: 585 - 589

13. Biotechniques for improving acid aluminum tolerance in alfalfa

    • M. Kamp-Glass
    • D. Powell
    • R. J. Wright

    OriginalPaper Pages: 590 - 592

14. The differential effect of N⁶-benzyl-adenine and N⁶-(Δ²-isopentenyl)-adenine on in vitro propagation of Paeonia suffruticosa Andr. is correlated with different hormone contents

    • Lydia Bouza
    • Monique Jacques
    • Emile Miginiac

    OriginalPaper Pages: 593 - 596

15. Erratum

    Erratum Pages: 597 - 597