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Author: Conrad Hal Waddington
Publisher:
ISBN:
Category : Embryology
Languages : en
Pages : 182
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Book Description
Conrad Hal Waddington's Organisers and Genes, published in 1940, is a summary of available research and theoretical framework for many concepts related to tissue differentiation in the developing embryo. The book is composed of two main conceptual sections. The first section explores the action and nature of the organizer, while the second section delves into genes and their influence on development. In this book Waddington explored organizers in terms of their capacity and method of induction. First he examined the nature of induction, discussing crucial experiments concerning the organizer, including Hans Spemann's discovery of the organizer, and his own research into organizers in higher birds and mammals. Waddington separated the action of the organizer into two distinct categories, evocation and individuation, discussed below. The main experimental approach discussed in this book involved grafting organizing tissue from one embryo or region of an embryo to another. Waddington described evocation as non-assimilative induction, or a one-way inducing signal. He presented this as a chemical signal and illustrated evocation with the dead organizer experiment. The dead organizer was shown to be capable of inducing differentiation of neural tissue in the ectoderm. He also included chemical induction by estrogens and steroids as other evocative signals. An important aspect of any signal of evocation, as presented by Waddington, is that the signal is specific to the differentiation of a certain tissue type.
Author: Conrad Hal Waddington
Publisher:
ISBN:
Category : Embryology
Languages : en
Pages : 182
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Book Description
Conrad Hal Waddington's Organisers and Genes, published in 1940, is a summary of available research and theoretical framework for many concepts related to tissue differentiation in the developing embryo. The book is composed of two main conceptual sections. The first section explores the action and nature of the organizer, while the second section delves into genes and their influence on development. In this book Waddington explored organizers in terms of their capacity and method of induction. First he examined the nature of induction, discussing crucial experiments concerning the organizer, including Hans Spemann's discovery of the organizer, and his own research into organizers in higher birds and mammals. Waddington separated the action of the organizer into two distinct categories, evocation and individuation, discussed below. The main experimental approach discussed in this book involved grafting organizing tissue from one embryo or region of an embryo to another. Waddington described evocation as non-assimilative induction, or a one-way inducing signal. He presented this as a chemical signal and illustrated evocation with the dead organizer experiment. The dead organizer was shown to be capable of inducing differentiation of neural tissue in the ectoderm. He also included chemical induction by estrogens and steroids as other evocative signals. An important aspect of any signal of evocation, as presented by Waddington, is that the signal is specific to the differentiation of a certain tissue type.
Author: Horst Grunz
Publisher: Springer Science & Business Media
ISBN: 3662104164
Category : Science
Languages : en
Pages : 437
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Book Description
The organizer area plays a central role in the formation of the embryonic axis and the central nervous system of all vertebrates including the human fetus. In The Vertebrate Organizer, outstanding molecular development biologists and embryologists report their latest approaches in this fascinating research area using different vertebrate model organisms. The presented data is of central importance for the understanding of early human embryogenesis.
Author: Shakir Ali
Publisher: Pearson Education India
ISBN: 933254073X
Category :
Languages : en
Pages : 377
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Book Description
The Cell: Organisation, Functions and Regulatory Mechanisms is a textbook written for students and scholars studying cell biology at various levels. The study of cell biology is an essential component of the syllabi at undergraduate and postgraduate levels in universities and colleges that offer courses in biochemistry, biotechnology, genetics, molecular biology, immunology, zoology, botany, toxicology and medical, nursing, paramedical, pharmaceutical and agricultural sciences. This book provides a perfect blend of basic and applied knowledge in the area of cell sciences using the latest examples and experiments. It includes chapters on the structure and composition of the cell its constituent structures and molecules properties of these structures and molecules as well as the various regulatory mechanisms of cellular processes in both healthy and diseased states. The simplicity of the language used ensures that it can be understood by students who are non-native speakers of English and also by scholars who do not have an in-depth knowledge of the subject but would like to get acquainted with it while working in their respective areas of study.
Author: Kazuya Kobayashi
Publisher: Springer
ISBN: 4431566090
Category : Science
Languages : en
Pages : 783
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Book Description
This book provides new insights into the universality of biological systems in animal reproduction and development by a comparative study of a variety of mechanisms in animals ranging from basal invertebrates to vertebrates, including mammals. Animals accomplish genetic diversity through meiosis and fertilization, and during embryogenesis animals must produce specialized cell types, including germ cells, in accordance with their individual body plan. This series of phenomena is essential to the continuity of life in the animal kingdom, and animals show various reproductive and developmental strategies. This volume, comprising four parts, reviews animal kingdom diversity, including reproductive strategies and germ cell differentiation mechanisms (Part 1), sex determination and differentiation (Part2), the mechanisms of fertilization (Part 3), and body axis formation (Part 4). Readers will find descriptions of the reproduction or development of 180 species, 13 phyla, 35 classes, 74 orders, 117 families, and 151 genera in this book. Of particular interest is the diversity of molecules and mechanisms used to achieve the same biological purpose in different animals. Undergraduates, graduate students, and professional scientists who want a deeper understanding of animal reproductive and developmental mechanisms will find this book to be of great value.
Author: Lilianna Solnica-Krezel
Publisher: Springer Science & Business Media
ISBN: 3540460411
Category : Science
Languages : en
Pages : 452
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Book Description
Authored by leading experts in the field, this book provides the first comprehensive overview of the mechanisms of early patterning and morphogenesis in zebrafish. It summarizes the current knowledge and the key questions for the next decade of research.
Author: William K. Purves
Publisher: Macmillan
ISBN: 9780716798569
Category : Science
Languages : en
Pages : 1256
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Book Description
New edition of a text presenting underlying concepts and showing their relevance to medical, agricultural, and environmental issues. Seven chapters discuss the cell, information and heredity, evolutionary process, the evolution of diversity, the biology of flowering plants and of animals, and ecology and biogeography. Topics are linked by themes such as evolution, the experimental foundations of knowledge, the flow of energy in the living world, the application and influence of molecular techniques, and human health considerations. Includes a CD-ROM which covers some of the subject matter and introduces and illustrates 1,700-plus key terms and concepts. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Takashi Sasano
Publisher: Springer Science & Business Media
ISBN: 4431996443
Category : Medical
Languages : en
Pages : 440
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Book Description
Since 2002, the Tohoku University Graduate School of Dentistry has proposed “Interface Oral Health Science” as a major theme for next-generation dental research. That theme is based on the following new concept: healthy oral fu- tion is maintained by biological and biomechanical harmony among three s- tems: (1) oral tissues (host); (2) parasitic microorganisms of the oral cavity (parasites); and (3) biomaterials. The concept implies that oral diseases such as dental caries, periodontal disease, and temporomandibular disorders should be interpreted as “interface disorders” that result from disruption of the intact int- face among these systems. The uniqueness of this concept rests on the fact that it not only encompasses the field of dentistry and dental medicine, but also expands the common ground shared with other fields, including medicine, ag- culture, material science, engineering, and pharmacology. We aim to promote advances in dental research and to activate collaboration with related fields by putting interface oral health science into practice. On this basis, we have already organized the 1st and 2nd International Symposiums for Interface Oral Health Science, which included inspiring special lectures, symposiums, poster pres- tations, and other discussions. The contents of the two symposiums were p- lished as monographs entitled Interface Oral Health Science in 2005 and 2007. The 3rd International Symposium was held in January 2009 as part of this project.
Author: William K. Purves
Publisher: Macmillan
ISBN: 9780716786795
Category : Science
Languages : en
Pages : 60
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Book Description
This is an authoritative introductory text that presents biological concepts through the research that revealed them. "Life" covers the full range of topics with an integrated experimental focus that flows naturally from the narrative.
Author:
Publisher: Academic Press
ISBN: 0128152214
Category : Science
Languages : en
Pages : 450
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Book Description
Current Topics in Developmental Biology series highlights new advances in the field, with this new volume presenting interesting chapters. Each chapter is written by one or more members of an international board of authors. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Current Topics in Developmental Biology series - Includes the latest information on maternal effect genes in development
Author:
Publisher: Elsevier
ISBN: 0080490956
Category : Science
Languages : en
Pages : 274
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Book Description
In the embryonic stage of a multicellular organism, precise arrangements of different cell types arise. These cell types eventually become the tissues and organs of the organism if it is an animal, for instance. Developmental biology is the study of this process in both plants and animals and covers the entire development stage of the organism. Current Topics in Developmental Biology provides a comprehensive survey of the major topics in this rapidly advancing field. The volumes are valuable to researchers in animal and plant development as well as to students and professionals who want an introduction to cellular and molecular mechanisms of development. With over thirty years of publication, this series is the longest-running forum for contemporary issues in developmental biology.
