Molecular Biology.- 1. Pollen Expressed Genes and Their Regulation.- 2. Pollen Allergens: Molecular Cloning and Mechanisms for Pollen-induced Asthma.- 3. The Analysis of Maize Mutant de-gaMI6 by Transposon Tagging.- 4. Isolation of Genes Preferentially Expressed in Pistils of Tobacco Flowers.- 5. Inhibition of Flavonoid Biosynthesis in Petunia Anthers by Antisense RNA: A Novel Way to Engineer Nuclear Male Sterility.- 6. Markers for the Y chromosome of Silene latifolia and Their Use in Studying Pollen Tube Growth Rates.- 7. Expression of a Rice Histone Gene During Pollen Developmental Transformations in Hyoscyamus niger (Henbane).- 8. Plastid Developmental Pathways in Some Angiosperm Reproductive Cells.- 9. In Vitro Polymerization of F-actin and Assembly of Microfilament Cytoskeleton of Pollen Actin.- Self-incompatibility.- 10. The Role of the Pollen Grain Coating in Pollination and in Self-incompatibility in Brassica oleracea.- 11. Molecular Genetics of Gametophytic Self-incompatibility in Solanaceae.- 12. Molecular Genetics of Self-incompatibility in Nicotiana alata.- 13. Recognition Signals and Pollen Responses in the Incompatibility Reaction in Papaver rhoeas.- 14. Self-incompatibility Products of the Male Partner in Brassica oleracea.- 15. Gametophytic Incompatibility in Petunia hybrida: Molecular Aspects of Male Gametophyte and Female Sporophyte Interactions.- 16. Self-incompatibility in Antirrhinum.- 17. Cross-incompatibility in Maize-A Case of a 3 Locus Interaction by Non-allelic Male and Female Genes.- 18. Effects of Style Age on the Performance of Self and Cross Pollen in Campanula rapunculoides.- Morphology and Structure.- 19. Gene Expression during Brassica napus Pollen Development.- 20. Pollen Mitochondrial Proteins in Fertile and Male Sterile Nicotiana sylvestris.- 21. Pollen Specific Gene Expression during Development and Germination in Tobacco.- 22. Concurrent Development of the Ovule Structures in Some Flowering Plants.- 23. Recent Advances in Clearing Techniques for Study of Ovule and Female Gametophyte Development.- 24. Comparisons of Early Ovule Development through Megagametogenesis in Rapid-cycling Brassica rapa L. and B. campestris L. Using Herr Clearing Techniques.- 25. Maturation of the Pollen of Cotton.- 26. Pollen Tube Growth in Culture. I. Control of Morphology and Generative Nucleus Division in Cultured Pollen Hibes of Nicotiana.- 27. Pollen Tube Growth and Ovule Penetration in Gasteria verrucosa (Mill.), H. Duval.- Physiology Biochemistry.- 28. Membrane Behaviour and Stress Tolerance in Pollen.- 29. Recent Aspects of Sporopollenin Biosynthesis.- 30. Developmental Synthesis of HSPs during the Male Gametophytic Phase of Heat Tolerant and Heat Sensitive Species.- 31. Electrophoretic Analysis of the Proteins Newly Formed as a Consequence of Pollen-Pistil Interaction.- 32. Adaptive Germination Responses by Walnut (Juglans) Pollen to Temperature during Pollen Development.- 33. Effect of the Carboxylic Ionophore Monensin on the Growth and Protein Pattern of Pollen Tubes.- 34. Localization of the Proteins Contained in the Stigma Exudate on the Lily Pistil Tissue.- 35. Microtubular Motors in the Pollen Tube of Nicotiana tabacum.- 36. The Microtubular Cytoskeleton during Pollen Development and Pollen Tube Growth in Nicotiana tabacum.- 37. Mitosis and Colchicine Effects on Microtubule Organization in Isolated Generative Cells of Allemanda neriifolia.- 38. The Extracellular Matrix in Pollen Tube Growth.- 39. Analogies of Chromosome Reducing Events in Somatic Cultured Cells and Microsporogenesis.- 40. Cytological Studies on Plastid Inheritance in Alfalfa (Medicago sativa).- 41. Modifications in the Interapertural Exine Following Pollinations of Linum grandiflorum.- Biotechnology.- 42. Pollen Mediated Indirect Gene Transfer to Dicots and Monocots.- 43. 2n Gametes for True Seed Production (TSP) in Potato: Basic and Applied Aspects.- 44. Induction of Embryogenesis in Isolated Pollen Cultures of Tobacco.- 45. Genotype and Ploidy Effects on Maize Pollen and In Vitro Germination Characteristics.- 46. Application of In Vitro Techniques in Cereal Pollen Biology.- 47. In Vitro Fertilization with Isolated Gametes of Maize and Its Application to Study Fertilization Processes and Early Events of Zygote Development.- 48. In Vitro Maturation of Maize Pollen.- 49. Differentiation and Maturation of Tobacco Pollen In Situ and in Suspension Culture.- 50. Pollen Tube Growth and Fertilization in Lilium longiflorum after Stigmatic and Placental Pollination.- 51. Isolation of Generative Cells and Sperm from Pollen Tubes of Lilium.- 52. New Interspecific Hybrids in the Genus Medicago through In Vitro Culture of Fertilized Ovules.- 53. In Vitro Fertilization: A Method Facilitating the Production of Hybrid Embryos and Plants.- 54. Introduction of Exogenous DNA into Plants after Pollination via the Pollen Tube Pathway.- 55. Biotechnology in Reproductive Biology.- Gametophytic Selection.- 56. Effects of High Temperature and Humidity Stresses on Tobacco Pollen and Their Progeny.- 57. Gamete Selection for Heat Stress Tolerance in Maize.- 58. Production of Highly Cold Tolerant Maize Inbred Lines by Repeated Gametophytic Selection.- 59. Herbicide Tolerance in Maize-Genetics and Pollen Selection.- 60. Gametophytic Selection for Early Maturity in Tomato (Lycopersicon esculentum Mill).- 61. Mechanisms in the Pistil that Regulate Gametophyte Population in Peach (Prunus persica).- 62. Gametophytic Selection in Rice.- 63. Germination as a Component of Pollen Competitive Ability in Hibiscus moscheutos.- Ecology and Evolution.- 64. Developmental Genetics of Sexual Propagation in Oenothera.- 65. The Effects on Genetic Load of Selection in the Gametophyte Stage.- 66. Natural and Artificial Hybrids in the Grasses.- 67. Pollen Competition as an Evolutionary Parameter Involved in the Domestication of Allogamous Cereal: A Two-locus Symmetrical Model of the Evolution on Sympatric Condition of Wild and Cultivated Populations of Pearl Millet.- 68. Evolution of Pollen Morphology: The Hare and Tortoise Game.- 69. Heterosis in Plants Starts Immediately after Fertilization.- 70. Evidence for Non-random Seed Setting of Ovules in the Pod of the Cruciferous Plants Brassica juncea and Raphanus sativus.- 71. The Potential for Interference among Pollen Grains of Wild Radish.- 72. Patterns of Bee Visitation to Flowers of Almond Cultivars in an Orchard as Determined by Molecular Genetic Marker Analysis of Pollen in the "Pollen Basket".- 73. Environmental Effects on Pollen Characters and Paternity.- 74. Pollen and Ovules in Evolutionary Studies.
The subject of this volume is the reproductive biology of plants. A steadily growing interest in this field is the result of at least two factors, as pointed out with great foresight by one of the driving forces in the field, H.E Linskens (Linskens 1964): most of the food consumed by humans takes the form of plant reproductive parts, and molecular biology now provides pow erful tools for investigating and manipulating plant reproductive systems. Molecular biology and the allied discipline of biotechnology are solidly represented in the papers in this book. The editors of Angiosperm Pollen and Ovules believe that the chapters herein contain some of the most excit ing findings of contemporary biology, and hope that the readers of this book will share their enthusiasm. The editors express sincere and grateful thanks for help from Carla Frova, Enrico Pe, and especially to Giorgio Binelli, all of the University of Milan. Without these three tireless and enthusiastic individuals it would not have been possible to maintain the apparently effortless proceeding of this congress. We thank also the organizing committee and the organizations that generously provided financial support (both listed below). Finally, we extend thanks to M. Cresti, D. Charlesworth, D. Hess, E Hoekstra, R. Bruce Knox, J.P. Mascarenhas, M.E. Nasrallah, P.L. Pfahler, A. Snow, and M.T.M. Willemse for chairing sessions.
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