Download or read book Research on the Cytochemistry of Microorganisms written by Wanda K. Farr and published by . This book was released on 1963 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research on the Cytochemistry of Cell Walls of Microorganisms written by Wanda K. Farr and published by . This book was released on 1964 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of the research program designed to solve the nutritional problems of astronauts during extended explorations of space, cell wall substances of four fungi, Heterocephalum aurantiacum, Spicaria sp., Cladosporium sp. and Linderina pennispora have been identified and localized by standard cytochemical methods. Chitin is the resistant cell wall material in the component cells of all of these fungi and results of efforts to identify cellulose in the same cell walls have been negative. Excretions which accumulate on the surfaces of the aerial corticating hyphae of H. aurantiacum are composed primarily of calcium salts and an unidentified colloidal material, yellow-orange in color and having many characteristics in common with the so-called "fungal gamboge." Reactions of the previously untreated chitinous cell walls to the enzyme, chitinase, are positive. Enzymatic hydrolysis represents the most suitable method now available for the conversion of chitin to N-acetylglucosamine with the accompanying breakdown of the cell wall and concurrent release of nutritive substances in the protoplast. X-ray diffraction patterns of chitin have been obtained from purified cell wall samples. Measurements of these same samples, at successive stages of removal of non-chitinous materials, show a gradual increase in refractive index values. Progress has been made in the adaptation of interference microscopy to the study of chitinous cell walls during the process of hydrolysis with chitinase.
Download or read book Research on the Cytochemistry of Cell Walls of Microorganisms written by Farr Cytochemical Laboratories and published by . This book was released on 1964 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of the research program designed to solve the nutritional problems of astronauts during extended explorations of space, cell wall substances of four fungi, Heterocephalum aurantiacum, Spicaria sp., Cladosporium sp. and Linderina pennispora have been identified and localized by standard cytochemical methods. Chitin is the resistant cell wall material in the component cells of all of these fungi and results of efforts to identify cellulose in the same cell walls have been negative. Excretions which accumulate on the surfaces of the aerial corticating hyphae of H. aurantiacum are composed primarily of calcium salts and an unidentified colloidal material, yellow-orange in color and having many characteristics in common with the so-called fungal gamboge. Reactions of the previously untreated chitinous cell walls to the enzyme, chitinase, are positive. Enzymatic hydrolysis represents the most suitable method now available for the conversion of chitin to N-acetylglucosamine with the accompanying breakdown of the cell wall and concurrent release of nutritive subbussubstances i ses in the protoplast. X-rray diffraction patteettterns of chitin havevah nin have been obtained from purified cell wall samples. Measurements of these same samples, at successive stages ofoof removal of non-chitinous materials, show a gradual increase in refractive index values. (Author).
Download or read book Research on the Cytochemistry of Cell was of Microorganisms written by Wanda K. Farr and published by . This book was released on 1964 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of the research program designed to solve the nutritional problems of astronauts during extended explorations of space, cell wall substances of four fungi, Heterocephalum aurantiacum, Spicaria sp., Cladosporium sp. and Linderina pennispora have been identified and localized by standard cytochemical methods. Chitin is the resistant cell wall material in the component cells of all of these fungi and results of efforts to identify cellulose in the same cell walls have been negative. Excretions which accumulate on the surfaces of the aerial corticating hyphae of H. aurantiacum are composed primarily of calcium salts and an unidentified colloidal material, yellow-orange in color and having many characteristics in common with the so-called "fungal gamboge." Reactions of the previously untreated chitinous cell walls to the enzyme, chitinase, are positive. Enzymatic hydrolysis represents the most suitable method now available for the conversion of chitin to N-acetylglucosamine with the accompanying breakdown of the cell wall and concurrent release of nutritive substances in the protoplast. X-ray diffraction patterns of chitin have been obtained from purified cell wall samples. Measurements of these same samples, at successive stages of removal of non-chitinous materials, show a gradual increase in refractive index values. Progress has been made in the adaptation of interference microscopy to the study of chitinous cell walls during the process of hydrolysis with chitinase.
Download or read book Research on the Cytochemistry of Microorganisms written by Wanda K. Farr and published by . This book was released on 1963 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of the research program designed to solve the nutritional problems of astronauts during extended explorations of space, the following experiments were conducted. Cell wall substances in the alga, Chlorella pyrenoidosa 71105 and the fungus, Linderina pennispora NRRL 2237 have been identified and localized by means of standard cytochemical techniques. Pectic material in the primary lamella and cellulose in the secondary lamella have been found in the wall of C. pyrenoidosa. The walls of the cells of L. pennispora are chitinous, with no indication of the presence of cellulose at any stage of development. The pectic material in the wall of the alga is in the form of a pectic-protein comples and the chitin in the walls of the fungal cells is in the form of a chitin-protein complex. The wall of C. pyrenoidosa reacts positively to an enzyme mixture of pectinase and cellulase and the walls of L. pennispora react similarly to chitinase. These identifications and reactions to enzymes can be used in the effort to bring about total assimilation of cell wall substances if these algal and fungal cells should be chosen as food materials in meeting the nutritional requirements of the space program.
Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1967 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Biology of The Cell written by Bruce Alberts and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1970 with total page 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Documentary Report written by United States. 6570th Aerospace Medical Research Laboratories and published by . This book was released on 1965 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Awards Index written by and published by . This book was released on with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microorganisms In Industry And Environment From Scientific And Industrial Research To Consumer Products Proceedings Of The Iii International Conference On Environmental Industrial And Applied Microbiology Biomicroworld2009 written by Antonio Mendez-vilas and published by World Scientific. This book was released on 2010-12-09 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to disseminate the most current research in applied microbiology presented at the III International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWorld2009) held in Lisbon, Portugal, in December 2009.This volume offers an inviting exploration of microbiology from scientific and industrial research to consumer products in a compilation of more than 150 papers written by leading experts in the field, who afford critical insights into several topics, review current research and discuss future directions to stimulate further discussions. This book also serves as an update on the most important current microbial research, by providing a comprehensive overview of cutting-edge topics in a single volume, where readers can also gain insights into how microbiology can solve problems in everyday settings.Although largely intended for microbiologists interested in knowing the latest developments in agriculture, environmental, food, industrial, medical and pharmaceutical microbiology and microbial biotechnology, this book is also a great source of reference for scientists and researchers involved in advancements in applied microbiology.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1975 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Histology Ultrastructure and Molecular Cytology of Plant Microorganism Interactions written by Michel Nicole and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants interact with a large number of microoganisms which have a major impact on their growth either by establishing mutually beneficial symbiotic relationships or by developing as pathogens at the expense of the plant with deleterious effects. These microorganisms differ greatly not only in their nature (viruses, phytoplasmas, bacteria, fungi, nematodes, ... ) but also in the way they contact, penetrate and invade their host. Histology and cytology have brought an essential contribution to our knowledge of these phenomena. They have told us for instance, how specialized structures of the pathogen are often involved in the adhesion and penetration into the plant, how the interface between both organisms is finely arranged at the cellular level, or what structural alterations affect the infected tissues. They have thus set the stage for the investigations of the underlying molecular mechanisms could be undertaken. Such investigations have been remarkably successful in the recent years, expanding considerably our understanding of plant-microorganism interactions in terms of biochemical changes, rapid modifications of enzymatic activities, coordinated gene activation, signal reception and transduction. Biochemistry, molecular biology and cellular physiology have taken precedence in the phytopathologist's set of methods.
Download or read book Intestinal Microorganisms of Termites and Other Invertebrates written by Helmut König and published by Springer Science & Business Media. This book was released on 2006 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first work to focus on microbes in gut systems of soil animals. Beginning with an overview of the biology of soil invertebrates, the text turns to the gut microbiota of termites, which are important soil processors in tropical and subtropical regions. Coverage extends to intestinal microbiota of such other litter decomposers as earthworms, springtails, millipedes, and woodlice. Thoroughly illustrated, including color photographs.
Download or read book Bacterial Physiology written by C. H. Werkman and published by Elsevier. This book was released on 2013-10-22 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacterial Physiology focuses on the physiology and chemistry of microorganisms and the value of bacterial physiology in the other fields of biology. The selection first underscores the chemistry and structure of bacterial cells, including the chemical composition of cells, direct and indirect methods of cytology, vegetative multiplication, spores of bacteria, and cell structure. The text then elaborates on inheritance, variation, and adaptation and growth of bacteria. The publication reviews the physical and chemical factors affecting growth and death. Topics include hydrogen ion concentration and osmotic pressure; surface and other forces determining the distribution of bacteria in their environment; dynamics of disinfection and bacteriostasis; bacterial resistance; and types of antibacterial agents. The text also ponders on the anaerobic dissimilation of carbohydrates, bacterial oxidations, and autotrophic assimilation of carbon dioxide. The selection is a dependable reference for readers interested in bacterial physiology.
Download or read book The Journal of Histochemistry and Cytochemistry written by and published by . This book was released on 1976 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Specimen Preparation for Transmission Electron Microscopy written by Audrey M. Glauert and published by Princeton University Press. This book was released on 2014-07-14 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains all the necessary information and advice for anyone wishing to obtain electron micrographs showing the most accurate ultrastructural detail in thin sections of any type of biological specimen. The guidelines for the choice of preparative methods are based on an extensive survey of current laboratory practice. For the first time, in a textbook of this kind, the molecular events occurring during fixation and embedding are analysed in detail. The reasons for choosing particular specimen preparation methods are explained and guidance is given on how to modify established techniques to suit individual requirements. All the practical methods advocated are clearly described, with accompanying tables and the results obtainable are illustrated with many electron micrographs. Portland Press Series: Practical Methods in Electron Microscopy, Volume 17, Audrey M. Glauert, Editor Originally published in 1999. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
