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Author: David L. Kirk
Publisher: Cambridge University Press
ISBN: 9780521452076
Category : Science
Languages : en
Pages : 210
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Book Description
This book reviews Volvox development and biology and, through this study, sheds light on the origins of multicellularity.
Author: David L. Kirk
Publisher: Cambridge University Press
ISBN: 9780521452076
Category : Science
Languages : en
Pages : 210
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Book Description
This book reviews Volvox development and biology and, through this study, sheds light on the origins of multicellularity.
Author: Frank Watts Bancroft
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Author: František Baluška
Publisher: Springer Science & Business Media
ISBN: 0387469575
Category : Science
Languages : en
Pages : 331
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Book Description
he biological sciences are dominated by the idea that cells are the functionally autonomous, physically separated, discrete units of life. TThis concept was propounded in the 19th century by discoveries of the cellular structuring of both plants and animals. Moreover, the ap parent autonomy of unicellular eukaryotes, as well as the cellular basis of the mammalian brain (an organ whose anatomy for a long while defied attempts to validate the idea of the cellular nature of its neurons), seemed to provide the final conclusive evidence for the completeness of *cell theory', a theory which has persisted in an almost dogmatic form up to the present day. However, it is very obvious that there are numerous observations which indicate that it is not the cells which serve as the basic units of biological life but that this property falls to some other, subcellular assemblage. To deal with this intricate problem concerning the fundamental unit of living matter, we proposed the so-called Cell Body concept which, in fact, devel ops an exceedingly original idea proposed by Julius Sachs at the end of the 19th century. In the case of eukaryotic cells, DNA-enriched nuclei are intimately associated with a microtubular cytoskeleton. In this configuration—as a Cell Body—these two items comprise the fundamental functional and struc tural unit of eukaryotic living matter. The Cell Body seems to be inherent to all cells in all organisms.
Author: David L. Kirk
Publisher: Cambridge University Press
ISBN: 9780521019149
Category : Science
Languages : en
Pages : 400
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Book Description
The central thesis of this book is that Volvox and its unicellular and colonial relatives provide a wholly unrivaled opportunity to explore the proximate and ultimate causes underlying the evolution from unicellular ancestors of multicellular organisms with fully differentiated cell types. A major portion of the book is devoted to reviewing what is known about the genetic, cellular and molecular basis of development in the most extensively studied species of Volvox: V. cateri, which exhibits a complete division of labor between mortal somatic cells and immortal germ cells. However, this topic has been put in context by first considering the ecological conditions and cytological preconditions that appear to have fostered the evolution of organisms of progressively increasing size and with progressively increasing tendency to produce terminally differentiated somatic cells. The book concludes by raising the question of whether the germ-soma dichotomy may have evolved by similar or different genetic pathways in different species of Volvox.
Author: George Busk
Publisher:
ISBN:
Category :
Languages : en
Pages : 42
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Book Description
Author: Clement Markert
Publisher: Elsevier
ISBN: 0323153976
Category : Science
Languages : en
Pages : 367
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Book Description
The Developmental Biology of Reproduction documents the proceedings of the 33rd symposium of the Society for Developmental Biology. Reproductive Biology was selected as the main theme of the symposium. The symposium aimed to draw center attention on basic aspects of reproduction in both plants and animals in the hope of stimulating research that might provide the necessary foundation for effective, practical control of human reproduction. Five areas were selected for emphasis: the formation of eggs and sperm; the activation of the egg to develop into an embryo; the genetic and biochemical events underlying the early development of the embryo; the hormonal controls operating in the reproductive process; and the general control of implantation and growth of the mammalian embryo in the uterus. Thirteen reports were given by distinguished researchers in each of these areas. All biologists interested in a broad understanding of problems of reproduction will find this symposium interesting and important for their own work.
Author: Barbara Ann Mitchell
Publisher:
ISBN:
Category : Polyhydroxyproline
Languages : en
Pages : 182
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Book Description
Author: Danton O'Day
Publisher: Elsevier
ISBN: 0323150977
Category : Science
Languages : en
Pages : 425
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Book Description
Sexual Interactions in Eukaryotic Microbes provides a comprehensive discussion of the sexual processes of eukaryotic microorganisms. The book is organized into three parts. Part I presents an overview of intercellular communication, covering the modes of cellular communication and the benefit of using eukaryotic microbes for studying cell communication. Part II on pheromonal interactions includes studies on the role of sex pheromones in organisms such as Saccharomyces cerevisiae, Allomyces, Volvox, and Neurospora crassa. Part III on cell surface interactions presents studies such as sexual interactions in Saccharomyces cerevisiae; sexual interactions of the cell surface in Paramecium; and the genetics and cellular biology of sexual development in Ustilago violacea. This book will be of value on a multitude of levels: from a general reference text to a source of research ideas. It will appeal to a wide spectrum of readers in a large number of disciplines, but will be particularly useful to cell biologists, microbiologists, protozoologists, and mycologists interested in the study of cellular communication.
Author: Ursula Goodenough
Publisher: Academic Press
ISBN: 0128224584
Category : Science
Languages : en
Pages : 462
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Book Description
The Chlamydomonas Sourcebook, 3rd Edition Introduction to Chlamydomonas and Its Laboratory Use (Volume 1) The gold-standard reference?covering the basic biology of the Chlamydomonas alga and techniques for its laboratory analysis Originally published as the standalone Chlamydomonas Sourcebook, then expanded as the first volume in a three-part comprehensive gold-standard reference,?The Chlamydomonas Sourcebook: Introduction to Chlamydomonas and Its Laboratory Use?has been fully revised and updated to include a?wealth of new resources for the Chlamydomonas community. Early chapters cover current understandings of its taxonomy, ultrastructure, cell and life cycles, and nuclear and organelle genomes, followed by technique-oriented chapters covering such topics as cell culture, mutagenesis, genetic analysis, construction of mutant libraries, and protein localization using immunofluorescence. This volume presents the latest in research and best practices, making it a must-have resource for researchers and students working in plant science and photosynthesis, fertility, mammalian vision, and biochemistry; crop scientists; plant physiologists; and plant, molecular, and human disease biologists. Remains the only complete reference to provide both the historical background and the most up-to-date information and applications on Chlamydomonas Includes best practices for applications in research, including methods for culture, genetic analysis, genomic and transcriptomic analysis, and mutant screening Helps researchers solve common laboratory problems, provides details on the properties of particular strains, and offers a comprehensive survey of molecular approaches Provides a broad perspective for studies in cell and molecular biology, genetics, plant physiology, and related fields
Author: Annie May Hurd-Karrer
Publisher:
ISBN:
Category : Algae
Languages : en
Pages : 148
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Book Description
