1. Polar auxin transport and auxin-induced elongation in the absence of cytoplasmic streaming

   • W. Z. Cande
   • Mary Helen M. Goldsmith
   • P. M. Ray

   OriginalPaper Pages: 279 - 296

2. Intracellular localization of the active process in polar transport of auxin

   • Mary Helen M. Goldsmith
   • Peter M. Ray

   OriginalPaper Pages: 297 - 314

3. Levée de dormance de L'embryon de Pommier (Pirus malus L.) en l'absence d'oxygène et de froid

   • Tahar Tissaoui
   • Daniel Côme

   OriginalPaper Pages: 315 - 322

4. Measurement of a gradient of oxygen partial pressure across the intact root

   • D. J. F. Bowling

   OriginalPaper Pages: 323 - 328

5. Phytochrome: First-order phototransformation kinetics in vivo

   • W. Schmidt
   • D. Marmé
   • E. Schäfer

   OriginalPaper Pages: 329 - 336

6. Influence of gibberellic and abscisic acids and the growth retardant, CCC, upon plastid development

   • Florence A. M. Wellburn
   • A. R. Wellburn
   • K. J. Treharne

   OriginalPaper Pages: 337 - 346

7. Identification of gibberellin A₂₀, abscisic acid, and phaseic acid from flowering Bryophyllum daigremontianum by combined gas chromatography-mass spectrometry

   • P. Gaskin
   • J. MacMillan
   • J. A. D. Zeevaart

   OriginalPaper Pages: 347 - 352

8. Regulation of pentosan biosynthesis in barley aleurone tissue by gibberellic acid

   • Kenneth D. Johnson
   • Maarten J. Chrispeels

   OriginalPaper Pages: 353 - 364

9. Activity of the asymmetric isomers of abscisic acid in a rapid bioassay

   • W. R. Cummins
   • E. Sondheimer

   Short Communication Pages: 365 - 369