1. Differential Perception of Environmental Light by Phytochromes; M. Furuya. 2. Functions and Actions of Arabidopsis phytochromes; K.J. Halliday, et al. 3. Signal Transduction in Photomorphogenesis: Intracellular Partitioning of Factors and Photoreceptors; E. Schafer, et al. 4. Molecular Genetic Analysis of Constitutively Photomorphogenic Mutants of Arabidopsis; J.P. Khurana, et al. 5. Cytosolic pH as a Secondary Messenger During Light Activation of Phosphoenolpyruvate Carboxylase in Mesophyll Cells of C4 Plants; Ch.B. Rao, et al. 6. A Role for Ectoapyrases and Extracellular ATP in Plant Growth and Development; S.J. Roux, et al. 7. Auxin- and GTP-binding Proteins and Protein Kinases from the Protonema of the Moss Funaria hygrometrica; M.M. Johri, et al. 8. Myoinositol Phosphates as Implicated in Metabolic Signaling and Calcium Homeostasis in Plants; S. Dasgupta, et al. 9. The Phosphoinositide (PI) Pathway and Signaling in Plants; I.Y. Perera, et al. 10. Phytochrome Signal Transduction in Cucumber Cotyledons; D. Vidal, et al. 11. Calcium, Calmodulin and Phosphoinositides in Leaflet Movements Mediated by Phytochrome: Nyctinastic and rhythmic movements; L. Moysset, et al. 12. Calmodulin and Plant Responses to the Environment: Modulation of Plant Tolerance to Toxic Metals by a Plasma Membrane Calcium/Calmodulin Binding Channel; R. Sunkar, et al. 13. Calcium Signaling: Downstream Components in Plants; G.K. Paney, et al. 14. Apoplast Calmodulin: The Identification, Functions and Transmembrane Mechanism; D. Sun, L. Ma. 15. CDPKs in Plant Signaling Networks: Progress in Research on a Groundnut CDPK; M. Das Dupta, S. Chaudhuri. 16. The Function of the Maize CRINKLY4 Receptor-like Kinase in a Growth Factor Like Signaling System; P.W. Becraft, et al. 17. Novel Calcium/Calmodulin-modulated Proteins: Chimeric Protein Kinase and Small Auxin Up Regulated RNA; B.W. Poovaiah, et al. 18. A Novel Ca2+/CaM-regulated Microtubule Motor Protein from Plants: Role in Trichome Morphogenesis and Cell Division; A.S.N. Reddy. 19. Progress Towards the Identification of Cytokinin Receptors; R. Hooley. 20. Salicylic Acid- and Nitric Oxide-Mediated Signal Transduction In Disease Resistance; D.F. Klessig, et al. 21. Involvement of ROS and Caspase-like Proteases During Cell Death Induction by Plant Pathogens: Signaling in Plant Cell Death; E. Lam, et al. 22. The Role of HSF in Heat Shock Signal Transduction and Heat Shock Response in Plants; R. Prandl, et al. 23. Towards Understanding the Recognition and Signal Transduction Processes in the Soybean-Phytophthora Sojae Interaction; M.K. Bhattacharyya, et al. 24. Elements of Signal Transduction Involed in Thylakoid Membrane Dynamics; P. Weber, et al. 25. Novel Aspects in Photosynthesis Gene Regulation; R. Oelmuller, et al. 26. Regulation of rDNA Transcription in Spinach Plastids by Transcription Factor CDF2; S. Lerbes-Mache. 27. Plastid Ribosome Biogenesis During the Early Steps of Chloroplast Differentiation: Elements Controlling the Activation of Nuclear Genes Encoding Plastid Ribosomal Proteins; R. Mache, et al. 28. Mechanism of Regulation of Gene Expression for Chloroplast Proteins; A.K. Tyagi, et al. 29. Functional Analysis of Pea Chloroplast DNA Polymerase and its Accessory Proteins; A. Gaikwad, et al. 30. Signal Transduction by Mitogen-activated Protein Kinases (MAPKs); E. Heberle-Bors, et al. Index.