1. Bicarbonate effects in leaf discs from spinach

   • Fatma El-Shintinawy
   • Govindjee

   Regular Paper Pages: 189 - 200

2. Detection of photosynthetic energy storage in a photosystem I reaction center preparation by photoacoustic spectroscopy

   • Thomas G. Owens
   • Robert Carpentier
   • Roger M. Leblanc

   Regular Paper Pages: 201 - 208

3. Heterogeneous photosystem 2 activity in isolated spinach chloroplasts

   • John Sinclair
   • Sandra M. Spence

   Regular Paper Pages: 209 - 220

4. The 16 and 23 kDa extrinsic polypeptides and the associated Ca²⁺ and Cl^- modify atrazine interaction with the photosystem II core complex

   • Abdur Rashid
   • Robert Carpentier

   Regular Paper Pages: 221 - 227

5. Studies on the mechanism of photosystem II photoinhibition I. A two-step degradation of D1-protein

   • Michael Richter
   • Wolfgang Rühle
   • Aloysius Wild

   Regular Paper Pages: 229 - 235

6. Studies on the mechanism of photosystem II photoinhibition II. The involvement of toxic oxygen species

   • Michael Richter
   • Wolfgang Rühle
   • Aloysius Wild

   Regular Paper Pages: 237 - 243

7. Effect of photon flux density on inorganic carbon accumulation and net CO₂ exchange in a high-CO₂-requiring mutant of Chlamydomonas reinhardtii

   • Martin H. Spalding

   Regular Paper Pages: 245 - 252

8. Circular dichroism of green bacterial chlorosomes

   • Daniel C. Brune
   • Paolo D. Gerola
   • John M. Olson

   Regular Paper Pages: 253 - 263

9. Sulfide and pH effects on variable fluorescence of photosystem II in two strains of the cyanobacterium Oscillatoria amphigranulata

   • Walter K. Dodds
   • Richard W. Castenholz

   Regular Paper Pages: 265 - 271