J. Heslop-Harrison – författare

Approx.538 pages

Pollen: Development and Physiology focuses on pollen physiology, with emphasis on the living pollen grains, their growth, and essential biological functions. Topics covered in this book include the role of nucleus and cytoplasm in microsporogenesis; the development of the pollen grain wall; the metabolism of pollen tubes; pistil-pollen interactions; and incompatibility. This monograph is comprised of 35 chapters divided into five sections. The first section explores the physiology and biochemistry of meiosis in the anther; changes in the cytoplasm and its organelles during microsporogenesis; and changes in cytoplasmic RNA and enzyme activity during the meiotic prophase in Cosmos bipinnatus. The next section is devoted to pollen development and the pollen grain wall and includes chapters that look at the role of the tapetum during microsporogenesis of angiosperms; dictyosome development during microsporogenesis in Canna generalis; and pollen grain and sperm cell ultrastructure in Beta. The remaining sections discuss the metabolism of pollen and pollen tubes; the interactions between pollen and pistil; and pollen size and incompatibility in Nicotiana. This text will be a valuable resource for plant physiologists.

H. F. LINSKENS and J. HESLOP-HARRISON The chapters of this volume deal with intercellular interaction phenomena in plants. Collectively they provide a broad conspectus of a highly active, if greatly fragmented, research field. Certain limitations have been imposed on the subject matter, the most impor­ tant being the exclusion of long-range interactions within the plant body. It is true that pervasive hormonal control systems cannot readily be demarcated from controls mediated by pheromones or information-carrying molecules with more limited spheres of action, but consideration is given in this volume to the main classes of plant hormones and their functions only incidentally, since these are treated adequately in other volumes of this Encyclopedia series (V - ume 9-11) and in numerous other texts and reviews. Similarly, certain other effects, such as those associated with nutrients and ions, are not considered in any detail. Furthermore, we have excluded intracellular interactions, and also consideration of transport phenomena, which are treated in detail in Vol­ ume 3 of this Series. Other aspects of inter-cellular interaction, such as cell surface phenomena and implications of lectin-carbohydrate interactions, and plant-virus inter-relationships, are treated in other sections of this Encyclopedia (Volumes 13B and 14B, respectively). In the volume on physiological plant pathology (Volume 4 of this series) special attention has been given to host­ pathogen interaction. These aspects of our subject will therefore be excluded in the present treatise.