Title Anoxia : evidence for eukaryote survival and paleontological strategies / edited by Alexander V. Altenbach, Joan M. Bernhard, and Joseph Seckbach

Published Dordrecht ; New York : Springer Science+Business Media B.V., ©2012

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Description 1 online resource (xxxv, 645 pages) : illustrations (some color) Series Cellular origin, life in extreme habitats and astrobiology, 1566-0400 ; v. 21 Cellular origin and life in extreme habitats and astrobiology ; v. 21. Contents pt. 1. General introduction -- pt. 2. Functional biochemistry -- pt. 3. Managing anoxia -- pt. 4. Foraminifera -- pt. 5. Zones and regions -- pt. 6. Modern analogs and templates for earth history Summary ANOXIA defines the lack of free molecular oxygen in an environment. In the presence of organic matter, the metabolism of anaerobic prokaryotes soon produces compounds such as free radicals, hydrogen sulfide, or methane that are typically toxic to aerobes. The concomitance of suppressed respiration and the presence of toxic substances suggests that these habitats are inhospitable to eukaryotes. Ecological definitions thus sometimes term these environments 'Death Zones'. In this book, however, we present a collection of remarkable adaptations to anoxia, observed in protists, fungi, plants and animals. Presented are case studies that provide evidence for controlled beneficial use of anoxia by, for example, organic modification of free radicals, use of alternative electron donors for anaerobic metabolic pathways, and employment of anaerobic symbionts. Marine, freshwater, and terrestrial organisms and habitats are considered. Ecological, cell biological, and physiological studies are included. In addition to these biologically oriented chapters, the book also presents a paleontological perspective by discussing indirect and direct evidence of eukaryote survival in ancient times. For example, the complex and often interwoven existence of oxic and anoxic milieus in space and time is also highlighted. Finally, we revisit the idea that eukaryotic inhabitation of anoxic habitats was established early in Earth history. This book will certainly increase your concepts regarding abilities of EUKARYOTA Analysis Life sciences Paleontology Ecology Microbiology Eukaryotic Microbiology Biogeosciences Geoecology/Natural Processes paleontologie palaeontology anoxie anoxia geologie geology ecologie eukaryoten eukaryotes biogeowetenschappen Palaeontology Paleontologie Bibliography Includes bibliographical references and index Subject Anoxic zones. Extreme environments -- Microbiology. Eukaryotic cells. Anaerobiosis. Adaptation (Physiology) Evolution (Biology) Paleontology. Anaerobiosis Eukaryota Adaptation, Physiological Biological Evolution Paleontology Eukaryotic Cells evolution. paleontology. NATURE -- Animals -- Wildlife. SCIENCE -- Microscopes & Microscopy. Paleontology Evolution (Biology) Anaerobiosis Adaptation (Physiology) Anoxic zones Eukaryotic cells Extreme environments -- Microbiology Form Electronic book Author Altenbach, Alexander V. Bernhard, Joan M. Seckbach, J. (Joseph) ISBN 9789400718968 9400718969

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