(P8C-1) Studies concerning the identity of the so-called 72 kDa NADP-malic enzyme. (Abstract 685)
María Lara¹, Gabriela Müller¹, Verónica Maurino², Mariana Saigo¹, Federico Bologna¹, Paula Casati¹, Carlos Andreo^*,1, María Drincovich¹, ¹ Centro de Estudios Fotosintéticos y Bioquímicos - Facultad Cs Bioquímicas y Farmacéuticas, Univ. Nacional Rosario, Argentina² Centro de Estudios Fotosintéticos y Bioquímicos - Facultad Cs Bioquímicas y Farmacéuticas, Univ. Nacional Rosario, Argentina

(P8C-2) Effects of elevated CO₂ on photosynthesis, respiration and mitochondrial number in the CAM plant Opuntia ficus-indica. (Abstract 686)
Núria Gómez-Casanovas¹, Xavier Huete², Julia Baeder¹, Joaquim Azcón-Bieto^*,1, ¹ Unitat de Fisiologia Vegetal, Departament de Biologia Vegetal, Barcelona, Spain² Departament I+D, Barcelona, Spain

(P8C-3) Is Crassulacean acid metabolism a consequence or cause of oxidative stress? (Abstract 687)
Anne Borland^*,1, Stewart Elliott¹, Beata Pater², Jeremy Barnes¹, Tahar Taybi¹, John Cushman³, ¹ Environmental and Molecular Plant Physiology, Newcastle Upon Tyne, Tyneside, UK² Plant Physiology, Cracow, Poland³ Department of Biochemistry, Reno, Nevada, USA

(P8C-4) Carbonic anhydrase isoforms in the C₄ CCM of Hydrilla. (Abstract 688)
Vidya Rao¹, Srinath Rao¹, Julia Reiskind¹, George Bowes^*,1, ¹ Department of Botany, Gainesville, Florida, USA

(P8C-5) Three grass species under water stress: some traits of C4 photosynthesis. (Abstract 689)
Ana Carmo-Silva^*,1, Ana Soares¹, Anabela Bernardes da Silva¹, Jorge Marques da Silva¹, Maria Arrabaça¹, ¹ Departamento de Biologia Vegetal and Centro de Engenharia Biológica, Lisboa, Portugal

(P8C-6) Identification and expression analyses of rice three phosphoenolpyruvate carboxylase kinase genes. (Abstract 690)
Hiroshi Fukayama^*,1, Stuart Sullivan², Mitsue Miyao¹, Hugh Nimmo², ¹ National Institute of Agrobiological Sciences, Tsukuba, Japan² Institute of Biomedical & Life Sciences, Glasgow, UK

(P8C-7) Regulation of -carboxylation enzymes in marine diatoms. (Abstract 691)
Espen Granum^*,1, Richard Leegood¹, John Raven², ¹ Department of Animal & Plant Sciences, Sheffield, United Kingdom² Biological Sciences Institute, Dundee, United Kingdom

(P8C-8) Behavior of organelle in succulent plants under drought conditions. (Abstract 692)
Ayumu Kondo^*,1, Keiko Shibata¹, Tatsuya Sakurai², Masahiro Tawata², Toru Funaguma¹, ¹ Faculty of Agriculture, Nagoya, Japan² Faculty of Science and Technology, Nagoya, Japan

(P8C-9) Functional specialization of chloroplasts in mesophyll and bundle sheath cells in Zea mays determined by comparative proteome analysis. (Abstract 693)
Wojciech Majeran^*,1, Yang Cai¹, Qi Sun ², Klaas Jan van Wijk¹, ¹ Klaas Jan van Wijk lab, Emerson Hall, Tower Road, Ithaca, NY, USA²

(P8C-10) Seasonal variation of photosynthetic capacity of the representative C₄ species in a tropical seasonal floodplain. (Abstract 694)
Khanyisa Mantlana^*,, Almut Arneth, Elmar Veenendaal, Pia Wohland¹, Piotr Wolski, Michael Schwarz¹, Nadine Hempel¹, Jon Lloyd¹, ¹ Max Planck Institute for Biogeochemistry, Jena, Germany

(P8C-11) The role of pyruvate orthophosphate dikinase (PPDK) in the C₃ plant Arabidopsis thaliana. (Abstract 695)
Kate Parsley^*,1, Julian Hibberd¹, ¹ Department of Plant Sciences, Cambridge, United Kingdom

(P8C-12) Antisense reduction of Rubisco activase levels in Flaveria bidentis, a C₄ species, reduces carbamylation and photosynthesis. (Abstract 696)
Luke Hendrickson¹, Vanda Quinn^*,1, Anthony Millgate¹, Bob Furbank², Susanne Caemmerer¹, ¹ Molecular Plant Physiology Group, Canberra, ACT, Australia² Plant Industry, Canberra, ACT, Australia

(P8C-13) Effects of growth light conditions on the organization of the photosynthetic apparatus in the C₄ plant leaves. (Abstract 697)
Yushi Tazoe^*,1, Ko Noguchi¹, Ichiro Terashima¹, ¹ Department of Biology, Graduate School of Science, Toyonaka, Osaka, Japan

(P8C-14) Leaf development of single cell C₄ plants of Bienertia (chenopodiaceae). (Abstract 698)
Elena Voznesenskaya^*,1, Nuria Koteyeva¹, Simon Chuong², Vincent Franceschi², Hossein Akhani³, Gerald Edwards², ¹ Laboratory of Anatomy and Morphology, St. Petersburg, Russia² School of Biological Sciences, Pullman, WA, USA³ Department of Biology, Tehran, Iran