Download or read book Prochloron A Microbial Enigma written by Ralph A. Lewin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ralph A. LewiQand Lanna Cheng In physics, the discovery of new (more properly, hitherto undetected) particles has often resulted from a search: like the discovery of America, their existence had been postulated but their actual existence awaited confirmation. In biology, new discoveries are rarely made in this way. The existence of an alga like Prochloron, as a putative ancestor of chloro plasts, had been postulated, but in fact its discovery was a consequence of fortuitous events. Green algal symbionts in didemnid ascidians had been known for decades to a few marine zoologists who had worked in coral reef areas, but nobody had bothered much about them. When we happened to find them, under boulders on a seashore in Baja California, Mexico, where we were taking part in a student expedition, we didn't bother much either at first, though they worried us a little. With our portable microscope we could see no nuclei in the cells, which, according to the dogma accepted at the time, indicated that they were blue-green algae-yet they didn't look blue-green. They were leaf-green, like green algae and higher plants. We made desultory attempts to grow them in culture, in variously enriched seawater media, but failed. (This proved to be a frustrating experience, all too frequently repeated on subsequent expeditions. ) We collected enough for electron microscopy, though, and transmission electron microscopy (TEM) studies indicated that the cells were unequivocally prokaryotic.

Download or read book Prochloron written by Ralph A Lewin and published by . This book was released on 1989-11-23 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Complex Enzymes in Microbial Natural Product Biosynthesis Part A Overview Articles and Peptides written by and published by Academic Press. This book was released on 2009-04-10 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial natural products have been an important traditional source of valuable antibiotics and other drugs but interest in them waned in the 1990s when big pharma decided that their discovery was no longer cost-effective and concentrated instead on synthetic chemistry as a source of novel compounds, often with disappointing results. Moreover understanding the biosynthesis of complex natural products was frustratingly difficult. With the development of molecular genetic methods to isolate and manipulate the complex microbial enzymes that make natural products, unexpected chemistry has been revealed and interest in the compounds has again flowered. This two-volume treatment of the subject will showcase the most important chemical classes of complex natural products: the peptides, made by the assembly of short chains of amino acid subunits, and the polyketides, assembled from the joining of small carboxylic acids such as acetate and malonate. In both classes, variation in sub-unit structure, number and chemical modification leads to an almost infinite variety of final structures, accounting for the huge importance of the compounds in nature and medicine. - Gathers tried and tested methods and techniques from top players in the field - In depth coverage of ribosomally-synthesised and Non-ribosomally-synthesised peptides - Provides an extremely useful reference for the experienced research scientist

Download or read book Advances in Microbiology written by P.C. Trivedi and published by Scientific Publishers. This book was released on 2003-06-01 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbiologist have made significant contributions to basic biological sciences as well as in the applied areas of public health and medical sciences, agriculture, industry and environmental sciences. The most dramatic current development in applied microbiology is due to development of genetic engineering and recombinant DNA technology. The book "Advances in Microbiology" provides a comprehensive and critical review of the work done on different areas of microbiology including agriculture, industry, medical science, bioremediation etc. The book contains 24 chapters. Chapters cover information on the status of microbial diversity, application of biosensors, Azolla as biofertilizer, Frank/a - nitrogen fixing actinomycetes, extraction of metals from ores using bacteria, alkaliphiles, citirc acid fermentation, biodiversity of cyanobacteria, microbial degradation of xenobiotics etc. Aspects, covering biotechnological applications of microbes for improved plant productivity and new approaches for development of vaccines have been specially included to project their role and use in the twenty-first century. Comprehensive account of microbes in the management of soil borne diseases and plant parasitic nematodes throw light on the importance of microbes in the management of plant pests. This book will be useful to researchers, teachers and students of Microbiology, Botany, Zoology and Agriculture.

Download or read book Molecular and functional ecology of aquatic microbial symbionts written by Hans-Peter Grossart and published by Frontiers E-books. This book was released on with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nothing provided

Download or read book Origins of Plastids written by Ralph A. Lewin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Origins of Plastids looks at symbiosis and symbiogenesis as a mechanism of evolution. This theory of endosymbiotic evolution postulates that photosynthetic prokaryotes living as endosymbionts within eukaryotic cells gradually evolved into the organelle structures called chloroplasts. The theory is controversial but has been strongly advocated by Lynn Margulis. Based on a colloquium held at the Bodega Bay Marine Laboratory of the University of California at Davis, Origins of Plastids reviews recent data on this most basic problem in plant evolution. In it, leading researchers in the field apply the theory of endosymbiotic evolution to plastid origins, producing an important new reference work for both professionals and graduates interested in the origins of life, the origins of the eukaryotic cell and its organelles, and the evolution of the higher plants in general. Origins of Plastids represents the state-of-the-art in its field. It should find a place on the bookshelves of people interested in microbiology, plant science, phycology, cell biology, and evolution.

Download or read book Photosynthesis in Algae written by Anthony W. D. Larkum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader to algal diversity as currently understood and then traces the photosynthetic structures and mechanisms that contribute so much to making the algae unique. Indeed the field is now so large that no one expert can hope to cover it all. The 19 articles are each written by experts in their area; ranging over all the essential aspects and making for a comprehensive coverage of the whole field. Important developments in molecular biology, especially transformation mutants in Chlamydomonas, are dealt with, as well as areas important to global climate change, carbon dioxide exchange, light harvesting, energy transduction, biotechnology and many others. The book is intended for use by graduate students and beginning researchers in the areas of molecular and cell biology, integrative biology, plant biology, biochemistry and biophysics, biotechnology, global ecology, and phycology.

Download or read book Photosynthetic Prokaryotes written by Nicholas H. Mann and published by Springer Science & Business Media. This book was released on 2012-11-29 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers the features common to bacteria that need light to grow, focusing on those features important in nature and useful in industrial applications. Because the species are scattered across the taxonomic chart, they have little in common except the physiology of photosynthesis and ecological dis

Download or read book Pharmaceutical Microbiology written by Tim Sandle and published by Woodhead Publishing. This book was released on 2015-10-09 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pharmaceutical Microbiology: Essentials for Quality Assurance and Quality Control presents that latest information on protecting pharmaceutical and healthcare products from spoilage by microorganisms, and protecting patients and consumers. With both sterile and non-sterile products, the effects can range from discoloration to the potential for fatality. The book provides an overview of the function of the pharmaceutical microbiologist and what they need to know, from regulatory filing and GMP, to laboratory design and management, and compendia tests and risk assessment tools and techniques. These key aspects are discussed through a series of dedicated chapters, with topics covering auditing, validation, data analysis, bioburden, toxins, microbial identification, culture media, and contamination control. - Contains the applications of pharmaceutical microbiology in sterile and non-sterile products - Presents the practical aspects of pharmaceutical microbiology testing - Provides contamination control risks and remediation strategies, along with rapid microbiological methods - Includes bioburden, endotoxin, and specific microbial risks - Highlights relevant case studies and risk assessment scenarios

Download or read book Molecular Ecology of Aquatic Microbes written by Ian Joint and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: A NATO ASI on "Molecular Ecology of Aquatic Microbes" was held at II Ciocco, Lucca, Italy from 28 August - 9 September 1994. The aims of the ASI were to evaluate the potential for molecular biology to solve some important questions in aquatic microbiology, particularly in relation to biogeochemical cycling and microbial physiology. Techniques developed by molecular biologists have now been adopted by a wide range of scientific disciplines. In the last 5 years, aquatic microbial ecologists have begun to incorporate these methods into their research and, as a result, are developing a much clearer understanding of phylogenetic diversity, the molecular basis of physiological acclimations and the transduction of environmental signals and organism responses. The aim of this ASI was to assess progress in this new field of research, to compare and describe techniques and experimental approaches, and to foster communication between disciplines. The ASI offered an excellent opportunity to bring together aquatic ecologists with molecular biologists and to encourage efficient technology transfer. The meeting of information on the status provided a forum for detailed and broad exchange and trends of aquatic molecular ecology and to assess how emerging molecular techniques might solve some important problems in ecology which have prove intractable because of lack of appropriate methodologies.

Download or read book Cyanobacteria written by Naveen K. Sharma and published by John Wiley & Sons. This book was released on 2013-11-22 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in the field, Cyanobacteria: An Economic Perspective is a comprehensive edited volume covering all areas of an important field and its application to energy, medicine and agriculture. Issues related to environment, food and energy have presented serious challenge to the stability of nation-states. Increasing global population, dwindling agriculture and industrial production, and inequitable distribution of resources and technologies have further aggravated the problem. The burden placed by increasing population on environment and especially on agricultural productivity is phenomenal. To provide food and fuel to such a massive population, it becomes imperative to find new ways and means to increase the production giving due consideration to biosphere’s ability to regenerate resources and provide ecological services. Cyanobacteria are environment friendly resource for commercial production of active biochemicals, drugs and future energy (biodiesel, bioethanol and hydrogen). Topics on isolation, identification and classification of cyanobacteria are discussed, as well as further sections on: summarizing a range of useful products synthesized by cyanobacteria, ecological services provided by cyanobacteria including their harmful effect in water bodies and associated flora and fauna. Chapter on tools, techniques, and patents also focus on the economic importance of the group. This book also provides an insight for future perspectives in each particular field and an extensive bibliography. This book will be a highly useful resource for students, researchers and professionals in academics in the life sciences including microbiology and biotechnology.

Download or read book Symbiosis written by Joseph Seckbach and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symbiosis is the fourth volume in the series Cellular Origin and Life in Extreme Habitats (COLE). Fifty experts, from over a dozen countries, review their current studies on different approaches to these phenomena. The chapters present various aspects of symbiosis from gene transfer, morphological features, and biodiversity to individual organisms sharing mutual cellular habitats. The origin of the eukaryotic phase is discussed with emphasis on cyanelles, H syntrophy, N2 fixation, and S-based symbiosis (as well as the origin of mitochondrion, chloroplast, and nucleus). All members of the three domains of life are presented for sharing symbiotic associations. This volume brings the concept of living together as `One plus One (plus One) equals One.' The purpose of this book is to introduce the teacher, researcher, scholar, and student as well as the open-minded and science-oriented reader to the global importance of this association.

Download or read book Discoveries in Photosynthesis written by Govindjee and published by Springer Science & Business Media. This book was released on 2006-07-15 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Life Is Bottled Sunshine" [Wynwood Reade, Martyrdom of Man, 1924]. This inspired phrase is a four-word summary of the significance of photosynthesis for life on earth. The study of photosynthesis has attracted the attention of a legion of biologists, biochemists, chemists and physicists for over 200 years. Discoveries in Photosynthesis presents a sweeping overview of the history of photosynthesis investigations, and detailed accounts of research progress in all aspects of the most complex bioenergetic process in living organisms. Conceived of as a way of summarizing the history of research advances in photosynthesis as of millennium 2000, the book evolved into a majestic and encyclopedic saga involving all of the basic sciences. The book contains 111 papers, authored by 132 scientists from 19 countries. It includes overviews; timelines; tributes; minireviews on excitation energy transfer, reaction centers, oxygen evolution, light-harvesting and pigment-protein complexes, electron transport and ATP synthesis, techniques and applications, biogenesis and membrane architecture, reductive and assimilatory processes, transport, regulation and adaptation, Genetics, and Evolution; laboratories and national perspectives; and retrospectives that end in a list of photosynthesis symposia, books and conferences. Informal and formal photographs of scientists make it a wonderful book to have. This book is meant not only for the researchers and graduate students, but also for advanced undergraduates in Plant Biology, Microbiology, Cell Biology, Biochemistry, Biophysics and History of Science.

Download or read book The Ecology of Cyanobacteria written by B.A. Whitton and published by Springer Science & Business Media. This book was released on 2000-06-30 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: ... Begins with an overview of ... blue-green algae ... then looks at their diversity in the geological record and ... their ecology in present environments

Download or read book Ultrastructure of Microalgae written by Tamar Berner and published by CRC Press. This book was released on 2014-07-22 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrastructure of Microalgae provides both fundamental and specific information regarding the ultrastructure of the major components of the microalgal cell. The book compares homologous structures in different groups within an evolutionary frame of reference. It covers all taxa and structures, and it incorporates new concepts that have resulted fro

Download or read book Symbiosis as a Source of Evolutionary Innovation written by Lynn Margulis and published by MIT Press. This book was released on 1991 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: These original contributions by symbiosis biologists and evolutionary theorists address the adequacy of the prevailing neo-Darwinian concept of evolution in the light of growing evidence that hereditary symbiosis, supplemented by the gradual accumulation of heritable mutation, results in the origin of new species and morphological novelty.A departure from mainstream biology, the idea of symbiosis--as in the genetic and metabolic interactions of the bacterial communities that became the earliest eukaryotes and eventually evolved into plants and animals--has attracted the attention of a growing number of scientists.These original contributions by symbiosis biologists and evolutionary theorists address the adequacy of the prevailing neo-Darwinian concept of evolution in the light of growing evidence that hereditary symbiosis, supplemented by the gradual accumulation of heritable mutation, results in the origin of new species and morphological novelty. They include reports of current research on the evolutionary consequences of symbiosis, the protracted physical association between organisms of different species. Among the issues considered are individuality and evolution, microbial symbioses, animal-bacterial symbioses, and the importance of symbiosis in cell evolution, ecology, and morphogenesis. Lynn Margulis, Distinguished Professor of Botany at the University of Massachusetts at Amherst, is the modern originator of the symbiotic theory of cell evolution. Once considered heresy, her ideas are now part of the microbiological revolution. ContributorsPeter Atsatt, Richard C. Back, David Bermudes, Paola Bonfante-Fasolo, René Fester, Lynda J. Goff, Anne-Marie Grenier, Ricardo Guerrero, Robert H. Haynes, Rosmarie Honegger, Gregory Hinkle, Kwang W. Jeon, Bryce Kendrick, Richard Law, David Lewis, Lynn Margulis, John Maynard Smith, Margaret J. McFall-Ngai, Paul Nardon, Kenneth H. Nealson, Kris Pirozynski, Peter W. Price, Mary Beth Saffo, Jan Sapp, Silvano Scannerini, Werner Schwemmler, Sorin Sonea, Toomas H. Tiivel, Robert K. Trench, Russell Vetter

Download or read book Defensive Mutualism in Microbial Symbiosis written by James F. White Jr. and published by CRC Press. This book was released on 2009-05-26 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anemones and fish, ants and acacia trees, fungus and trees, buffaloes and oxpeckers--each of these unlikely duos is an inimitable partnership in which the species' coexistence is mutually beneficial. More specifically, they represent examples of defensive mutualism, when one species receives protection against predators or parasites in exchange for