The Interpretation of Ultrastructure

The Interpretation of Ultrastructure PDF

Author: R. J. C. Harris

Publisher: Academic Press

Published: 2014-07-15

Total Pages: 449

ISBN-13: 1483282015

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The Interpretation of Ulstrastructure is a collection of papers dealing with techniques in ulstrastructural research such as in fixation, reversed staining, ultrastructure in embryos and in plants, control of observations by light microscopy, and cytochemistry at the electron microscope level. One paper describes various fixatives used on rat liver tissue including a standard osmium tetroxide solution, pure melted osmium tetroxide, and strong osmium tetroxide solutions in carbon tetrachloride. Another paper points out that the use of electron micrographs of the cell nucleus and chromosomes should include approaches to chromosome analysis. For the investigator studying the three dimensional organization of chromosomes, his approaches should include classical cytology and cytogenetics, chemical and cytochemical studies on nuclei, as well as chemical and physical analysis of nucleic acid and nucleoprotein molecules. Several papers discuss the study of natural and artificial DNA-plasma by thin sections, an assessment of negative staining techniques for revealing ultrastructure, and other approaches in the study of biological ultrastructure by high-resolution electron microscopy. The collection will benefit microbiologists, biotechnologists, and academicians connected with the biological sciences.

Ultrastructure Techniques for Microorganisms

Ultrastructure Techniques for Microorganisms PDF

Author: H.C. Aldrich

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 540

ISBN-13: 1468451197

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The modem microbiologist is often a real specialist who has difficulty under standing and applying many of the techniques beyond those in his or her own immediate field. On the other hand, most benefits to modem microbiology are obtained when a broad spectrum of scientific approaches can be focused on a problem. In early studies, electron microscopy was pivotal in understanding bacterial and viral morphology, and we still feel that we will understand a disease better if we have seen an electron micrograph of the causative agent. Today, because there is an increased awareness of the need to understand the rela tionships between microbial structure and function, the electron microscope is still one of the most important tools microbiologists can use for detailed analysis of microorganisms. Often, however, the aforementioned modem microbiologist still thinks of ultrastructure as involving negative staining or ultrathin sectioning in order to get a look at the shape of a "bug. " Many of the newer ultrastructure techniques, such as gold-labeled antibody localization, freeze-fracture, X-ray microanalysis, enzyme localization, and even scanning electron microscopy, are poorly under stood by, and therefore forbidding to, the average microbiologist. Even many cell biologists admit to having difficulty staying in touch with current develop ments in the fast-moving field of electron microscopy techniques.

Functional Ultrastructure

Functional Ultrastructure PDF

Author: Margit Pavelka

Publisher: Springer Science & Business Media

Published: 2005-12-05

Total Pages: 340

ISBN-13: 3211263926

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The period between 1950 and 1980 were the golden It also provides unique insights into how pathological years of transmission electron microscopy and pro- processes affect cell organization. duced a plethora of new information on the structure of This information is vital to current work in which cells that was coupled to and followed by biochemical the emphasis is on integrating approaches from p- and functional studies. TEM was king and each micro- teomics, molecular biology, molecular imaging and graph of a new object produced new information that physiology, and pathology to understand cell functions led to new insights on cell and tissue organization and and derangements in disease. In this current era, there is their functions. The quality of data represented by the a growing tendency to substitute modern light mic- images of cells and tissues had been perfected to a very scopic techniques for electron microscopy because it is high level by the great microscopists of the era including less technically demanding and is more readily available Palade, Porter, Fawcett, Sjostrand, Rhodin and many to researchers. This atlas reminds us that the infor- others. At present, the images that we see in leading tion obtained by electron microscopy is invaluable and journals for the most part do not reach the same techni- has no substitute.

The Nucleolus

The Nucleolus PDF

Author: Mark O. J. Olson

Publisher: Springer Science & Business Media

Published: 2011-09-15

Total Pages: 434

ISBN-13: 1461405149

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Within the past two decades, extraordinary new functions for the nucleolus have begun to appear, giving the field a new vitality and generating renewed excitement and interest. These new discoveries include both newly-discovered functions and aspects of its conventional role. The Nucleolus is divided into three parts: nucleolar structure and organization, the role of the nucleolus in ribosome biogenesis, and novel functions of the nucleolus.

Pathology of the Nucleus

Pathology of the Nucleus PDF

Author: James C.E. Underwood

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 491

ISBN-13: 3642746683

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New techniques make it possible for investigators to examine and sometimes quantify various aspects of nuclear morphology and function; now they can derive clinically and biologically useful information about the nucleus. This book draws together a series of techniques which have been successfully applied to the study of the nucleus of tumour cells. These are of fundamental importance to researchers in tumour histopathology and medical oncology. Detailed reviews are given of various aspects of the morphology, ploidy and karyotypic status and function of the nuclei in the cells of tumours and preneoplastic lesions. Topics covered include nuclear morphology in tumour diagnosis, the ultrastructure of the nucleus, karyotypic analyses of solid tumours, flow cytometric assessment of nuclear ploidy and other parameters, histomorphometry of the nucleus, and in situ hybridisation.

Introduction to Electron Microscopy for Biologists

Introduction to Electron Microscopy for Biologists PDF

Author:

Publisher: Academic Press

Published: 2008-10-22

Total Pages: 560

ISBN-13: 008088816X

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This volume demonstrates how cellular and associated electron microscopy contributes to knowledge about biological structural information, primarily at the nanometer level. It presents how EM approaches complement both conventional structural biology (at the high end, angstrom level of resolution) and digital light microscopy (at the low end, 100-200 nanometers). *Basic techniques in transmission and scanning electron microscopy *Detailed chapters on how to use electron microscopy when dealing with specific cellular structures, such as the nucleus, cell membrane, and cytoskeleton *Discussion on electron microscopy of viruses and virus-cell interactions

Electron Microscopy

Electron Microscopy PDF

Author: John J. Bozzola

Publisher: Jones & Bartlett Learning

Published: 1999

Total Pages: 702

ISBN-13: 9780763701925

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New edition of an introductory reference that covers all of the important aspects of electron microscopy from a biological perspective, including theory of scanning and transmission; specimen preparation; darkroom, digital imaging, and image analysis; laboratory safety; interpretation of images; and an atlas of ultrastructure. Generously illustrated with bandw line drawings and photographs. Annotation copyrighted by Book News, Inc., Portland, OR

Visualization of Nucleic Acids

Visualization of Nucleic Acids PDF

Author: Gerard Morel

Publisher: CRC Press

Published: 1995-03-30

Total Pages: 398

ISBN-13: 9780849347818

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This book presents a review of the principle approaches for visualizing DNA and RNA. Using scanning tunneling and atomic force microscopes, the three-dimensional image of the surface of nucleic acids can be seen at atomic-scale resolutions. Spreading methods provide useful details on structural features of isolated molecules, but the major constituent of living matter is water, and the cryomicroscope makes it possible to look at DNA in its aqueous environment. Genes can be detected simultaneously in situ in chromosomes using fluorescent probes, and also at the electron microscopic level. In cells, nucleic acids are localized and quantified by dyes; electron microscopy is used with cytochemical, immunocytological, nuclease, and in situ hybridization methods. The main potential applications for pathological studies are shown with particular aspects such as viral nucleic acids and in situ PCR.