Professor Karl J. Oparka, FRSE is at the Scottish Crop Research Institute, Dundee, UK

• Contributors. Preface.1. Plasmodesmal structure and development.Alison G. Roberts, Scottish Crop Research Institute, Dundee, UK.2. Evolution of plasmodesmata.John A. Raven, Division of Environmental and Applied Biology, University of Dundee, UK.3. Plasmodesmata: protein transport signals and receptors.Friedrich Kragler, Vienna Biocenter, Austria.4. Comparative structures of specialised monocotyledonous leaf blade plasmodesmata.C. E. J. Botha, Botany Department, Rhodes University, Grahamstown, South Africa, R. H. M. Cross, Electron Microscopy Unit, Rhodes University, Grahamstown, South Africa and L. Liu, Linyi University, Linyi, China.5. Plasmodesmata and plant morphogenesis.Ken Kobayashi, Insoon Kim, Euna Cho and Patricia Zambryski, Department of Plant and Microbial Biology, University of California, Berkeley, USA.6. Transcription factor movement through plasmodesmata.David Jackson, Cold Spring Harbor Laboratory, New York, USA.7. Role of plasmodesmata in solute loading and unloading.Alexander Schulz, Department of Plant Biology, The Royal Veterinary and Agricultural University, Copenhagen, Denmark.8. Plasmodesmata and the phloem: conduits for local and long-distance signaling.Robert L. Gilbertson, Maria R. Rojas, and William J. Lucas, Department of Plant Pathology, University of California, Davis, USA.9. Movement of viruses to and through plasmodesmata.Richard S. Nelson, Samuel Roberts Noble Foundation, Ardmore, Oklahoma, USA.10. Systemic RNA silencing.Manfred Heinlein, Institute of Botany, University of Basel, Switzerland.11. Techniques for imaging intercellular transport.Karl Oparka and Petra Boevink, Unit of Cell Biology, Scottish Crop Research Institute, Dundee, UK.12. Electrical signalling via plasmodesmata.Aart J. E. van Bel and Katrina Ehlers, Institute of General Botany, Justus-Liebig University, Giessen, Germany.13. Regulation of plasmodesmal conductance.Terena L. Holdaway-Clarke, School of Biological Sciences, University of Sydney, New South Wales, Australia.Index