Development Of The Vertebrate Retina
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Development Of The Vertebrate Retina
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Author : Barbara L. Finlay
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-08
Development Of The Vertebrate Retina written by Barbara L. Finlay and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-08 with Science categories.
The vertebrate retina has a form that is closely and clearly linked to its func tion. Though its fundamental cellular architecture is conserved across verte brates, the retinas of individual species show variations that are also of clear and direct functional utility. Its accessibility, readily identifiable neuronal types, and specialized neuronal connectivity and morphology have made it a model system for researchers interested in the general questions of the genet ic, molecular, and developmental control of cell type and shape. Thus, the questions asked of the retina span virtually every domain of neuroscientific inquiry-molecular, genetic, developmental, behavioral, and evolutionary. Nowhere have the interactions of these levels of analysis been more apparent and borne more fruit than in the last several years of study of the develop ment of the vertebrate retina. Fields of investigation have a natural evolution, rdoving through periods of initial excitement, of framing of questions and controversy, to periods of synthesis and restatement of questions. The study of the development of the vertebrate retina appeared to us to have reached such a point of synthesis. Descriptive questions of how neurons are generated and deployed, and ques tions of mechanism about the factors that control the retinal neuron's type and distribution and the conformation of its processes have been posed, and in good part answered. Moreover, the integration of cellular accounts of development with genetic, molecular, and whole-eye and behavioral accounts has begun.
The Development Of The Vertebrate Retina
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Author : G. Grün
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Development Of The Vertebrate Retina written by G. Grün and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The mature vertebrate retina is a highly complicated array of several kinds of cells, capable of receiving light impulses, transforming them into neuronal membrane currents, and transmitting these in a meaningful way to central processing. Before it starts to develop, it is a small sheet of unconspicuous cells, which do not differ from other cells of the central nervous system. The chain of events which lead to the trans formation from this stage into that of highly specialized cells ready to fulfll a specific task, is usually called "differentiation. " Originally, this word indicated firstly the proc ess of divergence from other cells which were previously alike, and secondly, the change from an earlier stage of the same cello lt has become widespread practice to imply by the word "differentiation" also the acquisition of specific properties and capacities which are characteristic of a mature, Le. , specifically active, cello Every cell is active at any stage of development, but certain activities are shared by most cells (e. g. , the activities of preparing and accomplishing proliferation, that of initiating development, that of maintaining a certain level of metabolism), while there are others which are shared by only a small number of - originally relate- cells. In most cases these latter activities are acquired by the fmal steps of cellular development, the terminal "differentiation. " In the context of the present paper, the word "function" will refer to this latter type of specific activity.
Vertebrate Photoreceptors
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Author : Takahisa Furukawa
language : en
Publisher: Springer
Release Date : 2016-08-23
Vertebrate Photoreceptors written by Takahisa Furukawa and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-23 with Medical categories.
This book provides a series of comprehensive views on various important aspects of vertebrate photoreceptors. The vertebrate retina is a tissue that provides unique experimental advantages to neuroscientists. Photoreceptor neurons are abundant in this tissue and they are readily identifiable and easily isolated. These features make them an outstanding model for studying neuronal mechanisms of signal transduction, adaptation, synaptic transmission, development, differentiation, diseases and regeneration. Thanks to recent advances in genetic analysis, it also is possible to link biochemical and physiological investigations to understand the molecular mechanisms of vertebrate photoreceptors within a functioning retina in a living animal. Photoreceptors are the most deeply studied sensory receptor cells, but readers will find that many important questions remain. We still do not know how photoreceptors, visual pigments and their signaling pathways evolved, how they were generated and how they are maintained. This book will make clear what is known and what is not known. The chapters are selected from fields of studies that have contributed to a broad understanding of the birth, development, structure, function and death of photoreceptor neurons. The underlying common word in all of the chapters that is used to describe these mechanisms is “molecule”. Only with this word can we understand how these highly specific neurons function and survive. It is challenging for even the foremost researchers to cover all aspects of the subject. Understanding photoreceptors from several different points of view that share a molecular perspective will provide readers with a useful interdisciplinary perspective.
Webvision
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Author : Helga Kolb
language : en
Publisher:
Release Date : 2007
Webvision written by Helga Kolb and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The Development Of The Vertebrate Retina
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Author : G. Grun
language : en
Publisher:
Release Date : 1982-10-08
The Development Of The Vertebrate Retina written by G. Grun and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982-10-08 with categories.
Drosophila Eye Development
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Author : Kevin Moses
language : en
Publisher: Springer Science & Business Media
Release Date : 2002-03-12
Drosophila Eye Development written by Kevin Moses and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-03-12 with Medical categories.
1 Kevin Moses It is now 25 years since the study of the development of the compound eye in Drosophila really began with a classic paper (Ready et al. 1976). In 1864, August Weismann published a monograph on the development of Diptera and included some beautiful drawings of the developing imaginal discs (Weismann 1864). One of these is the first description of the third instar eye disc in which Weismann drew a vertical line separating a posterior domain that included a regular pattern of clustered cells from an anterior domain without such a pattern. Weismann suggested that these clusters were the precursors of the adult ommatidia and that the line marks the anterior edge of the eye. In his first suggestion he was absolutely correct - in his second he was wrong. The vertical line shown was not the anterior edge of the eye, but the anterior edge of a moving wave of patterning and cell type specification that 112 years later (1976) Ready, Hansen and Benzer would name the "morphogenetic furrow". While it is too late to hear from August Weismann, it is a particular pleasure to be able to include a chapter in this Volume from the first author of that 1976 paper: Don Ready! These past 25 years have seen an astonishing explosion in the study of the fly eye (see Fig.
Invertebrate And Vertebrate Eye Development
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Author :
language : en
Publisher: Academic Press
Release Date : 2010-11-24
Invertebrate And Vertebrate Eye Development written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-24 with Science categories.
Vision is our primary sensory modality, and we are naturally curious as to how the visual system assembles. The visual system is in many ways remarkably simple, a repeating assemblage of neurons and support cells that parse the visual field through precision and redundancy. Through this simplicity the eye has often led the way in our exploration of how an organ is assembled. Eye development has therefore long been a favorite for exploring mechanisms of cell fate choice, patterning and cell signaling.This volume, which is part of the Current Topics in Developmental Biology series, highlights the exceptional advances over the past 20 years. Chapters emphasize our knowledge of transcription factors and how these generate networks to direct the eye field and associated structures. Topics such as cell fate specification are also explored, along with the potential of Drosophila as a model for lens formation and the progress made in using the Drosophila eye to examine planar cell polarity. - Contributions from researchers who are active in identifying new paradigms to explore - Review of our current state of knowledge - Chapters written by authors with a new generation approach that takes a more systems approach to identifying factors and better defines cell subtypes
The Vertebrate Eye And Its Adaptive Radiation
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Author : Gordon L. Walls
language : en
Publisher: Alpha Edition
Release Date : 2020-04
The Vertebrate Eye And Its Adaptive Radiation written by Gordon L. Walls and has been published by Alpha Edition this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04 with History categories.
This book has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations. So that the book is never forgotten we have represented this book in a print format as the same form as it was originally first published. Hence any marks or annotations seen are left intentionally to preserve its true nature.
Animal Models In Eye Research
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Author :
language : en
Publisher: Academic Press
Release Date : 2011-04-28
Animal Models In Eye Research written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-28 with Science categories.
The eye is a complex sensory organ, which enables visual perception of the world. Thus the eye has several tissues that do different tasks. One of the most basic aspects of eye function is the sensitivity of cells to light and its transduction though the optic nerve to the brain. Different organisms use different ways to achieve these tasks. In this sense, eye function becomes a very important evolutionary aspect as well. This book presents the different animal models that are commonly used for eye research and their uniqueness in evaluating different aspects of eye development, evolution, physiology and disease. - Presents information on the major animal models used in eye research including invertebrates and vertebrates - Provides researchers with information needed to choose between model organisms - Includes an introductory chapter on the different types of eyes, stressing possible common molecular machinery
The Development Of The Vertebrate Retina
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Author : Eva Braak
language : en
Publisher:
Release Date : 1982
The Development Of The Vertebrate Retina written by Eva Braak and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Aminopeptidases categories.