[1] UNIV SHEFFIELD,DEPT MOLEC BIOL & BIOTECHNOL,ROBERT HILL INST PHOTOSYNTH,SHEFFIELD S10 2UH,S YORKSHIRE,ENGLAND
[2] UNIV SHEFFIELD,DEPT MOLEC BIOL & BIOTECHNOL,KREBS INST BIOMOLEC RES,SHEFFIELD S10 2UH,S YORKSHIRE,ENGLAND
[3] FREE UNIV AMSTERDAM,DEPT PHYS & ASTRON,1081 HV AMSTERDAM,NETHERLANDS
[4] FREE UNIV AMSTERDAM,DEPT PLANT PHYSIOL,1081 HV AMSTERDAM,NETHERLANDS
[5] CEA,DBCM,BIOPHYS PROT & MEMBRANES SECT,F-91191 GIF SUR YVETTE,FRANCE
[6] CTR ETUD SACLAY,CNRS,URA 1290,F-91191 GIF SUR YVETTE,FRANCE