1. Obituary

   • Michael Seibert

   Announcement Pages: 95 - 98

2. CO₂ and water vapour exchange in four alpine herbs at two altitudes and under varying light and temperature conditions

   • A. S. Rawat
   • A. N. Purohit

   Regular Paper Pages: 99 - 108

3. In vitro effects of monoterpenes on chloroplast membranes

   • Hanjo Klingler
   • Silvi Frosch
   • Edgar Wagner

   Regular Paper Pages: 109 - 118

4. Linear analysis applied to the comparative study of the I-D-P phase of chlorophyll fluorescence as induced by actinic PS-II light, PS-I light and changes in CO₂-concentration

   • Ulf-Peter Hansen
   • Holger Dau
   • Christian Moldaenke

   Regular Paper Pages: 119 - 130

5. Evidence of excited state absorption in PS II membrane fragments

   • Th. Bittner
   • J. Voigt
   • G. Renger

   Regular Paper Pages: 131 - 139

6. Inhibition of chlororespiration by myxothiazol and antimycin A in Chlamydomonas reinhardtii

   • Jacques Ravenel
   • Gilles Peltier

   Regular Paper Pages: 141 - 148

7. Rapid and simple isolation of pure photosystem II core and reaction center particles from spinach

   • Peter J. van Leeuwen
   • Maaike C. Nieveen
   • Hans J. van Gorkom

   Rapid Communication Pages: 149 - 153