Aquatic Photosynthesis

Author: Paul G. Falkowski
Publisher: Princeton University Press
ISBN: 1400849721
Format: PDF, Docs
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Aquatic Photosynthesis is a comprehensive guide to understanding the evolution and ecology of photosynthesis in aquatic environments. This second edition, thoroughly revised to bring it up to date, describes how one of the most fundamental metabolic processes evolved and transformed the surface chemistry of the Earth. The book focuses on recent biochemical and biophysical advances and the molecular biological techniques that have made them possible. In ten chapters that are self-contained but that build upon information presented earlier, the book starts with a reductionist, biophysical description of the photosynthetic reactions. It then moves through biochemical and molecular biological patterns in aquatic photoautotrophs, physiological and ecological principles, and global biogeochemical cycles. The book considers applications to ecology, and refers to historical developments. It can be used as a primary text in a lecture course, or as a supplemental text in a survey course such as biological oceanography, limnology, or biogeochemistry.

Light and Photosynthesis in Aquatic Ecosystems

Author: John T. O. Kirk
Publisher: Cambridge University Press
ISBN: 1139493914
Format: PDF, Mobi
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Beginning systematically with the fundamentals, the fully-updated third edition of this popular graduate textbook provides an understanding of all the essential elements of marine optics. It explains the key role of light as a major factor in determining the operation and biological composition of aquatic ecosystems, and its scope ranges from the physics of light transmission within water, through the biochemistry and physiology of aquatic photosynthesis, to the ecological relationships that depend on the underwater light climate. This book also provides a valuable introduction to the remote sensing of the ocean from space, which is now recognized to be of great environmental significance due to its direct relevance to global warming. An important resource for graduate courses on marine optics, aquatic photosynthesis, or ocean remote sensing; and for aquatic scientists, both oceanographers and limnologists.

Photoacoustics A Novel Tool for the Study of Aquatic Photosynthesis

Author: Yulia Pinchasov-Grinblat
Format: PDF, Mobi
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The photoacoustic method allows direct determination of the energy-storage efficiency of photosynthesis by relating the energy stored by it to the total light energy absorbed by the plant material (Canaani et al., 1988; Malkin & Cahen, 1979; Malkin et al., 1990). These authors applied the photoacoustic method to leaves in the gas phase, where brief pulses caused concomitant pulses of oxygen that caused a pressure transient detected by a microphone. This method is based on the conversion of absorbed light to heat. Depending on the efficiency of the photosynthetic system, a variable fraction of the absorbed light energy is stored, thereby affecting the heat evolved and the resulting photoacoustic signal. The higher the photosynthetic efficiency, the greater will be the difference between the stored energy with and without ongoing photosynthesis (Cha & Mauzerall, 1992). These authors collected microalgal cells onto a filter and studied them by an approach similar to that previously used with leaves. In both cases, the oxygen signal is combined with that of thermal expansion resulting from conversion of the fraction of the light energy in the pulse that is not stored by photochemistry.

Aquatic Pollution

Author: Edward A. Laws
Publisher: John Wiley & Sons
ISBN: 9780471348757
Format: PDF, Mobi
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A clear, straightforward presentation of concepts and issues in aquatic pollution This comprehensive introductory text presents a systematic study of pollution in oceans, lakes, streams, and underground aquifers. In a clear, straightforward style that is easily accessible to nonscientists, it describes the sources, features, and effects of thirteen different types of aquatic pollution. Fully updated to reflect current understanding and recent developments, this Third Edition of Aquatic Pollution covers every aspect of pollution associated with urban runoff, acid rain, sewage disposal, pesticides, oil spills, nutrient loading, and more. Case studies of major pollution sites such as Lake Erie, Three Mile Island, and the Rocky Mountain Arsenal help to illustrate points made in the general discussion. Important features of this new edition include: * Updated discussions of nonpoint source pollution, industrial pollution, thermal pollution, pathogens, metals, plastics, and more * New case studies of Chesapeake Bay and the Exxon Valdez * Beginning-of-chapter outlines * End-of-chapter study questions * New special section on units of measurement * Four chapters on the fundamentals of ecology and toxicology Aquatic Pollution, Third Edition, is a first-rate teaching and learning tool for courses in environmental science, zoology, oceanography, biology, and civil or sanitary engineering. It is also an excellent primer for policymakers and activists focused on environmental issues.

Photosynthesis Physiology and Metabolism

Author: Richard C. Leegood
Publisher: Springer Science & Business Media
ISBN: 0306481375
Format: PDF
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Photosynthesis: Physiology and Metabolism is the we have concentrated on the acquisition and ninth volume in theseries Advances in Photosynthesis metabolism of carbon. However, a full understanding (Series Editor, Govindjee). Several volumes in this of reactions involved in the conversion of to series have dealt with molecular and biophysical sugars requires an integrated view of metabolism. aspects of photosynthesis in the bacteria, algae and We have, therefore, commissioned international cyanobacteria, focussing largely on what have been authorities to write chapters on, for example, traditionally, though inaccurately, termed the ‘light interactionsbetween carbon and nitrogen metabolism, reactions’(Volume 1, The Molecular Biology of on respiration in photosynthetic tissues and on the Cyanobacteria;Volume2,AnoxygenicPhotosynthetic control of gene expression by metabolism. Photo- Bacteria, Volume 3, Biophysical Techniques in synthetic carbon assimilation is also one of the most Photosynthesis and Volume 7, The Molecular Biology rapid metabolic processes that occurs in plant cells, of the Chloroplasts and Mitochondria in Chlamy- and therefore has to be considered in relation to domonas). Volume 4 dealt with Oxygenic Photo- transport, whether it be the initial uptake of carbon, synthesis: The Light Reactions, and volume 5 with intracellular transport between organelles, inter- Photosynthesis and the Environment, whereas the cellular transport, as occurs in plants, or transport structure and function of lipids in photosynthesis of photosynthates through and out of the leaf. All was covered in Volume 6 of this series: Lipids in these aspects of transport are also covered in the Photosynthesis: Structure, Function and Genetics, book.

Photosynthesis in Bryophytes and Early Land Plants

Author: David T. Hanson
Publisher: Springer Science & Business Media
ISBN: 9400769881
Format: PDF, Mobi
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Bryophytes, which are important constituents of ecosystems globally and often dominate carbon and water dynamics at high latitudes and elevations, were also among the pioneers of terrestrial photosynthesis. Consequently, in addition to their present day ecological value, modern representatives of these groups contain the legacy of adaptations that led to the greening of Earth. This volume brings together experts on bryophyte photosynthesis whose research spans the genome and cell through whole plant and ecosystem function and combines that with historical perspectives on the role of algal, bryophyte and vascular plant ancestors on terrestrialization of the Earth. The eighteen well-illustrated chapters reveal unique physiological approaches to achieving carbon balance and dealing with environmental limitations and stresses that present an alternative, yet successful strategy for land plants.