Nearly 10 years have elapsed since I finished writing the first edition of Intro duction to Molecular Embryology. During this period, molecular embryology has made great strides forward, but without undergoing a major revolution; there fore, the general philosophy and outline of the book have remained almost un changed. However, all the chapters had to be almost completely rewritten in or der to introduce new facts and to eliminate findings which have lost interest or have been disproved. There was a major gap in the first edition of this book: very little was said about mammalian eggs despite their obvious interest for mankind. Research on mammalian eggs and embryos is so active today that this important topic deserves a full chapter in a book concerned with molecular embryology. Therefore, I am very thankful to my colleague Dr. Henri Alexandre, who has written a chapter on mammalian embryology (Chap. 9) and has prepared all the illustrations for this book.
The Biochemistry of Development focuses on advances in chemical embryology. The book first discusses gametogenesis, including the processes of oogenesis and spermatogenesis. The text describes fertilization and related aspects, such as physical, morphological, and metabolic changes during fertilization. The selection also underscores the process of cleavage. Concerns include morphology and cytochemistry of dividing eggs; importance of nucleic acids and proteins; formation of the furrow; and biochemistry of cleavage. The text also looks at the chemical embryology of invertebrate eggs. Examinations are done on the eggs of worms, mollusks, sea urchins, and ascidians. The book also evaluates the chemical embryology of vertebrate eggs. RNA and protein metabolism of intact eggs; chemical nature of inducing substances; and physical properties of inducing agents are underscored. The text also offers information on the biochemistry of differentiation and the biochemical interactions between the nucleus and the cytoplasm during morphogenesis. The selection is highly recommended for readers wanting to study chemical embryology.
Molecular Cytology, Volume 2: Cell Interactions deals with the morphology and biochemistry of the cell, with emphasis on the more dynamic aspects of cytology. It looks at gene transfer in somatic cells, nucleocytoplasmic interactions in oocytes and eggs, and cell differentiation, transformation, malignancy, aging, and death. Organized into four chapters, this volume begins with a discussion of nucleocytoplasmic interactions in somatic cells and unicellular organisms. The next chapter examines the experimental interventions at early stages in the egg cytoplasm with reference to Xenopus oocytes, as well as oogenesis, the structure and composition of the cytoplasm and the nucleus, fertilization of sea urchin eggs, and the nuclear determinants of early embryogenic development. Additionally, a chapter explains the mechanisms underlying cell senescence, arrest of cell growth, and cell death; the mechanisms of cell differentiation as the normal outcome of embryonic development; the morphological and biochemical changes that occur in cells when they become senescent; and the metastasis of cancer cells. The book concludes with a chapter that presents a few general ideas about biochemical cytology. This book is a valuable reference for cell biologists, biochemists, cytologists, advanced students, research workers, and laypersons interested in learning the fundamentals of descriptive cytology, biochemistry, embryology, genetics, and molecular biology.
Molecular Cytology presents an integrated version about the morphology and biochemistry of the cell. This two-volume book focuses on the dynamic aspects of cytology and on the nucleocytoplasmic interactions in unicellular organisms and eggs. The first chapter covers the history of cell, cytology, and nucleic acids, as well as the uniformity and diversity in cell. The book then discusses various methods used in cell biology, including optical, cytochemical, biological, biochemical, and biophysical techniques. It also examines the activities of cytoplasm and nucleus during interphase. The final chapter describes various phases of the cell cycle, the structure of metaphase chromosomes, the molecular organization of the mitotic apparatus, and the cytokinesis, with emphasis on the main mitotic abnormalities. With the aim of linking the morphology and biochemistry of the cell, this book is intended for advanced students, research workers, biochemists, and cytologists who wish to broaden their knowledge in cell.
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