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 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 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 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 Current Research Topics in Applied Microbiology and Microbial Biotechnology written by Antonio Mendez-Vilas and published by World Scientific. This book was released on 2009 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a compilation of papers presented at the II International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWorld2007) held in Seville, Spain on 28 November OCo 1 December 2007, where over 550 researchers from about 60 countries attended and presented their cutting-edge research. The main goals of this book are to: (1) identify new approaches and research opportunities in applied microbiology, presenting works that link microbiology with research areas usually related to other scientific and engineering disciplines; and (2) communicate current research priorities and progress in the field. The contents of this book mirror this focus. Microbiologists interested in environmental, industrial and applied microbiology and, in general, scientists whose research fields are related to applied microbiology can find an overview of the current state of the art in the topic. In addition to the more general topic, some chapters are devoted to specific branches of microbiology research, such as bioremediation; biosurfactants; microbial factories; biotechnologically relevant enzymes and proteins; microbial physiology, metabolism and gene expression; and future bioindustries."
Download or read book Cell Cell Channels written by František Baluška and published by Springer Science & Business Media. This book was released on 2006-08-28 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers cell-cell channels at all levels of biological organization. The purpose of this book is to document that cells are not physically separated and fully autonomous units of biological life as stated by the currently valid Cell Theory. If not the cell then some lower level unit must fulfill this role. The book deals also with the identity of this elusive unit of biological life.
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 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 Chitin in Nature and Technology written by G.W. Gooday and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exegi monumentum ael'e perennius. The monument I have built will last longer than bronze. Horace My previous book, "Chitin", (1977) was listed by the publisher, as a "key research book", among the most requested books by libraries. It received favorable comments from. each of the journals which reviewed it, Science, 198, 28 Oct. 1977, Physiological Entomology, 2(4), Dec. 1977, The Canadian Institute of Food Science and Technology Journal, April 1978, The Quarterly Review of Biology, 53:361, 1978, Oceanographic Abstracts, 15:182, 1979, Annales de Zoologie-Ecologie Animale, 11:127, 1979, and Enzyme & Microbial Technology, 2, 1980. The variety of these journals testifies to the interdisci plinary character of chitin studies. "Chitin" has really been a landmark, to use the definition given by Science, because it stimulated interest in the less known polysaccharides and in modified chitins, besides chitin itself, to the point that three International Conferences on Chitin / Chitosan were convened (Boston, U. S. A. 1977, Sapporo, Japan 1982 and Senigallia, Italy 1985). In convening the 3rd International Conference on Chitin / Chitosan (1-4 April 1985), one of the main objectives was the preparation of the present book. While the proceedings of the previous two Conferences were very valuable, they did not appear in any book catalogs and this severely Ii mi ted their distribution.
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 1970 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 870 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 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 U S Government Research Reports written by and published by . This book was released on 1964 with total page 1586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
