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Sporopollenin proceedings of a symposium held at the Geology Department, Imperial College, London, 23-25 September, 1970.
Sporopollenin presents the proceedings of a Symposium held at the Geology Department, Imperial College, London, on September 23-25, 1970. The book discusses the functional roles of spore and pollen grain walls, the sporopollenin concept, as well as spore wall patterning. The text also describes the...
| Clasificación: | Libro Electrónico |
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| Autores Corporativos: | , |
| Otros Autores: | |
| Formato: | Electrónico Congresos, conferencias eBook |
| Idioma: | Inglés |
| Publicado: |
London, New York,
Academic Press,
1971.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Sporopollenin; Copyright Page; Table of Contents; CHAPTER 1. SPOROPOLLENIN IN THE BIOLOGICAL CONTEXT; Introduction; The Sporopollenin Concept; Sporopollenin Sculpturing: Adaptive Roles; Spore Wall Patterning: Morphogenesis; Conclusion; References; CHAPTER 2. THE ROLE PLAYED BY SPOROPOLLENIN IN THE DEVELOPMENT OF POLLEN IN PINUS BANKSIANA; Abstract; Introduction; Materials and Methods; Observations; Discussion; Acknowledgements; REFERENCES; CHAPTER 3. MORPHOLOGICAL AND FLUORESCENCE MICROSCOPICAL INVESTIGATION ON SPOROPOLLENIN FORMATION AT PINUS SYLYESTRIS AND GASTERIA VERRUCOSA
- AbstractIntroduction; Material and methods; Morphological development of Pinus sylvestris pollen; Pollen wall fluorescence; The megaspore wall; Literature; CHAPTER 4. PRIMULINE INDUCED FLUORESCENCE OF THE FIRST EXINE ELEMENTS AND UBISCH BODIES IN IPOMOEA AND LILIUM; Abstract; Introduction; Material and Methods; Observations; Lilium; Ubisch bodies; Discussion; References; Explanation of the figures; CHAPTER 5. ULTRASTRUCTURAL AND CHEMICAL STUDIES OF POLLEN WALL DEVELOPMENT IN THE EPACRIDACEAE; Introduction; RESULTS; SUMMARY; REFERENCES; ACKNOWLEDGEMENTS
- CHAPTER 6. IMPLICATIONS ON THE NATURE OF SPOROPOLLENIN BASED UPON POLLEN DEVELOPMENTAbstract; Introduction; The microspore as a free cell surface; The exine surface; Transfer of material across the exine; Exine dissolution during development and germination; General discussion; Acknowledgments; References; CHAPTER 7. PRODUCTION OF SPOROPOLLENIN BY THE TAPETUM; Abstract; Introduction; Development of the anther; The Tapetum; Development of the Amoeboid or Periplasmodial Tapetum; Development of the Secretory Tapetum; Development of Ubisch Bodies; Function of Ubisch Bodies; Tapetal Membranes
- Pollenkitt FormationTryphine Formation; Contribution by the Tapetum to the Pollen Grain Wall; Control of Sporopollenin Deposition; Acknowledgement; References; CHAPTER 8. NOTES ON THE RESISTANCE AND STRATIFICATION OF THE EXINE; Abstract; Resistance to decay; Corrosion possibly due to microbial activities; Radial perforations and/or channels in the exine of mature pollen grains; ""Interbedded Zones"" (Larson 1966); References; CHAPTER 9. THE PRESERVATION OF SPOROPOLLENIN MEMBRANES UNDER NATURAL CONDITIONS; References; CHAPTER 10. A PALAEOBIOLOGICAL DEFINITION OF SPOROPOLLENIN; Abstract
- IntroductionSpores, Living and Fossil; The distinction between spores and pollen; The recognition of sporopollenin in fossils; The resolution of different types of fossil spore wall material by density gradient centrifugation; BIBLIOGRAPHY; CHAPTER 11. ASPECTS OF SPORIN; Abstract; Introduction; References; CHAPTER 12. THE CHEMISTRY OF SPOROPOLLENIN; Abstract; Contents; Introduction; Early Experiments with Sporopollenin; Later Chemistry; Biochemistry of Sporopollenin Production in Lilium Henryii; Radiochemical Studies