(P1A-1) Origin of thermoluminescence bands in unfrozen Chamydomonas reinhardtii cells. (Abstract 172)
Jean-Marc Ducruet^*,1, Laszlo Kovacs², Gyözö Garab², ¹ Section de Bioénergétique, Gif-sur-Yvette cedex, France² Inst.Plant Biology, Szeged, Hungary

(P1A-2) Alpha- and beta-cyclodextrins, two new uncouplers of electron transfer and ATP synthesis in the thylakoid membrane. (Abstract 173)
Mario Fragata^*,1, Subhan Dudekula², ¹ Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada² Université du Québec à Trois-Rivières, Trois-Rivières, Québec, Canada

(P1A-3) The principle of redox regulation of chloroplast ATPase activity. (Abstract 174)
Toru Hisabori^{*,1, 2}, Hanayo Ueoka-Nakanishi^{1, 2}, Yoichi Nakanishi^{1, 2, 3}, Dirk Bald^{1, 4}, Ken Motohashi^{1, 2}, Masasuke Yoshida^{1, 2}, Hiroki Konno^{1, 2}, ¹ Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan² ATP System Project, ERATO, JST, Yokohama, Kanagawa, Japan³ Lab. Cell Dynamics, Grad. Sch. Bioagr. Sci., Nagoya Univ., Naogya, Aichi, Japan⁴ Dept. Struct. Biol. Free Univ. Amsterdam, Amsterdam, The Netherlands

(P1A-4) Dynamics of electron transfer between quinones in photosynthetic reaction centers. (Abstract 175)
Di Donato Mariangela^*,1, Peluso Andrea¹, ¹ University of Salerno, Baronissi (SA), Italy

(P1A-5) A novel oxidoreductase in the antimycin sensitive Photosystem I cyclic electron flow pathway (Synechocystis PCC6803). (Abstract 176)
Hans Matthijs^*,1, Nataliya Yeremenko^*,1, Peerada Prommeenate², Wolfgang Schiefer³, Robert Jeanjean⁴, Peter Nixon^{2, 5}, Michel Havaux^*,5, ¹ Aquatic Microbiology, University of Amsterdam, Amsterdam, the Netherlands² Dept. Biol. Sciences, Imperial College London, London, United Kingdom³ Lehrstuhl Biochemie der Pflanzen, Bochum, Germany⁴ LCB-CNRS, , France, Marseille, France⁵ CEA/Cadarache, DSV, DEVM, Saint-Paul-lez-Durance, France

(P1A-6) Contribution of cyclic electron flow around PSI to CO₂ fixation in Arabidopsis. (Abstract 177)
Yuri Munekage^*,1, Dominique Rumeau¹, Stephan Cuiné¹, Toshiharu Shikanai², Bernard Genty¹, Gilles Peltier¹, ¹ CEA Cadarache DSV DEVM Laboratoire d’Ecophysiologie de la Photosynthese UMR 6191 CNRS-CEA, Aix-Marseille II, Saint-Paul-lez-Durance, France² Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara, Japan

(P1A-7) Involvement of NADH and peripheral NADH dehydrogenase in the cyclic electron flow in higher plants. (Abstract 178)
Tomoki Nishino^*,1, Yasuhiro Kashino¹, Hiroyuki Koike¹, Kazuhiko Satoh¹, ¹ Depertment of Life Science, Koto, Hyogo, Japan

(P1A-8) Changes in cyclic electron transport pathway of Synechocystis 6803 under various growth conditions. (Abstract 179)
Junko Ooyabu^*,1, Masako Ootuka¹, Yasuhiro Kashino¹, Kazuhiko Satoh¹, Hiroyuki Koike¹, ¹ Department of life science, Graduate school and Faculty of science,Himeji Institute of Technology, Hyogo, Japan

(P1A-9) Effect of deletions from the N-terminus on the functions of the subunit of the chloroplast ATP synthase. (Abstract 180)
Zhang-Lin Ni^*,1, Jia-Mian Wei¹, ¹ Shanghai Institute of Plant Physiology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China