The Formation of Wood in Forest Trees : the Second Symposium Held under the Auspices of the Maria Moors Cabot Foundation for Botanical Research, Harvard Forest, April, 1963

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Front Cover; The Formation of Wood in Forest Trees; Copyright Page; Table of Contents; List of Contributors; Preface; Chairman's Introduction; PART I: THE CAMBIUM AND ITS DERIVATIVES; Chapter 1. Evolution of Cambium in Geologic Time; I. Psilophytales and Their Presumed Immediate Derivatives; II. Lycopsida; III. Sphenopsida; IV. Pteropsida; DISCUSSION; REFERENCES; Chapter 2. A Model for Cell Production by the Cambium of Conifers; Cell Division in the Cambium of White Pine; Rates and Times in the Cell Division Cycle in Pine Cambium; Other Aspects of Cell Production; DISCUSSION; REFERENCES. Chapter 3. Structure and Development of the Bark in DicotyledonsThe Phloem; Periderm and Rhytidome; Conclusion; REFERENCES; Chapter 4. Aspects of Ultrastructure of Phloem; Sieve Areas and Protoplasts of Cucurbita Sieve Elements; Sieve Areas in Vitis; Conclusion; DISCUSSION; REFERENCES; Chapter 5. Stem Structure in Arborescent Monocotyledons; Single-Stemmed Palms (Cocos); Pandanaceae (Pandanus utilis); Agavaceae (Agave and Dracaena); Conclusions; Summary; DISCUSSION; REFERENCES; Chapter 6. The Structure and Formation of the Cell Wall in Xylem; I. Introduction; II. Composition of the Cell Wall. III. Texture of the Cell WallIV. Cell Wall Organization; V. Sculpturing of the Cell Wall; VI. Cell-Wall Organization and the Differentiation of Fibers and Tracheids; ACKNOWLEDGMENTS; DISCUSSION; REFERENCES; PART II: BIOCHEMISTRY OF CAMBIAL DERIVATIVES; Chapter 7. General Chemistry of Cell Walls and Distribution of the Chemical Constituents across the Walls; DISCUSSION; REFERENCES; Chapter 8. Ultraviolet and Fluorescence Optics of Lignified Cell Walls; Structural State of Lignin in the Cell Wall; Distribution of Lignin in the Cell Wall; Summary; Discussion; REFERENCES. Chapter 9. Structural and Mechanical Aspects of Plant Cell Walls with Particular Reference to Synthesis and GrowthIntroduction; The Constitution of Cellulose and the Yielding of Cellulosic Walls to Stress; The Orientation of the Hemicelluloses; The Crossed Microfibrillar Structure; Microfibril Synthesis and Orientation; DISCUSSION; REFERENCES; Chapter 10. The Biosynthesis of Cellulose; Biochemical Pathways Leading to Cellulose Synthesis; Physical Mechanisms of Microfibril Formation; Mechanisms of Microfibril Orientation; Résumé and Conclusions; DISCUSSION; REFERENCES. Chapter 11. The Formation of Lignin in the Tissue and in VitroDISCUSSION; REFERENCES; Chapter 12. Cinnamic Acid Derivatives as Intermediates in the Biosynthesis of Lignin and Related Compounds; Introduction; Tracer Experiments; Enzyme Studies; General Discussion of Tracer and Enzyme Studies; Evolution of Lignification; DISCUSSION; REFERENCES; PART III: THE TRANSLOCATION OF PHOTOSYNTHETIC PRODUCTS TO THE CAMBIUM; Chapter 13. The Production and Translocation of Photosynthate- C14 in Conifers; Experimental Material; Methods; Translocation to Roots with and without Mycorhiza