Search results for: photobiology-of-higher-plants

Photobiology of Higher Plants

Author : Maurice S. McDonald
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The Photobiology of Higher Plants offers a comprehensive, balanced coverage of both photosynthesis (including physiology and global aspects) and photomorphogenesis in plants. An accessible, student-friendly approach to the subject is taken, providing the reader with a useful historical perspective and showing how this fascinating subject has evolved. All aspects of plant biochemistry and plant physiology are included with the fundamentals of the subject rigorously covered. Each chapter includes numerous references to provide a useful starting point for those wishing to learn more about the subject. * Provides combined coverage of both photosynthesis and photomorphogenesis in plants. * Includes an extensice glossary designed to provide easy access to key * Aimed at students in Botany, Plant Science, Agriculture and Forestry * A useful reference for postgraduates and researchers working in the field

Concepts in Photobiology

Author : G.S. Singhal
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Photobiology is an important area of biological research since a very large number of living processes are either dependent on or governed by light that we receive from the Sun. Among various subjects, photosynthesis is one of the most important, and thus a popular topic in both molecular and organismic biology, and one which has made a considerable impact throughout the world since almost all life on Earth depends upon it as a source of food, fuel and oxygen. However, for growth of plants, light is equally essential, and research on photomorphogenesis has revealed exciting new developments with the application of newer molecular biological approaches. The present book brings together and integrates various aspects of photosynthesis, biology of pigments, light regulation of chloroplast development, nuclear and chloroplast gene expression, light signal transduction, other photomorphogenetic processes and some photoecological aspects under one cover. The chapters cover biochemical and molecular discussions of most of the above topics in a comprehensive manner and include a wide range of `hot topics' that are currently under investigation in the field of photobiology of cyanobacteria, algae and plants. The authors of this book are selected international authorities in their fields from USA, Europe, Australia and Asia. The book is designed primarily to be used as a text book by graduates and post-graduates. It is, however, also intended to be a resource book for new researchers in plant photobiology. Several introductory chapters are designed as suitable reading for undergraduate courses in integrative and molecular biology, biochemistry and biophysics.

Research in Photobiology and Photochemistry

Author : H. Gaffron
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A summary is given of investigations of the manganese content of chloroplasts, activation of photosynthesis by manganese, two types of damage in higher plants due to manganese deficiency, and the distribution of manganese in structurally different chloroplasts in relation to particular metabolic activities displayed by such chloroplasts. Another investigation dealt with the response of photosynthesis and respiration to desiccation in the fern Polypodium polypodioides. (Author).

Physicochemical and Environmental Plant Physiology

Author : Park S. Nobel
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Physicochemical and Environmental Plant Physiology, Fifth Edition, is the updated version of an established and successful text and reference for plant scientists. This work represents the seventh book in a 50-year series by Park Nobel beginning in 1970. The original structure and philosophy of the book continue in this new edition, providing a genuine synthesis of modern physicochemical and physiological thinking, while updating the content. Key concepts in plant physiology are developed with the use of chemistry, physics, and mathematics fundamentals. The book contains plant physiology basics while also including many equations and often their derivation to quantify the processes and explain why certain effects and pathways occur, helping readers to broaden their knowledge base. New topics included in this edition are advances in plant hydraulics, other plant–water relations, and the effects of climate change on plants. This series continues to be the gold standard in environmental plant physiology. Describes the chemical and the physical principles behind plant physiological processes Provides key equations for each chapter and solutions for the problems on each topic Includes features that enhances the utility of the book for self-study such as problems after each chapter and the 45-page section "Solution to Problems" at the end of the book Includes appendices with conversation factors, constants/coefficients, abbreviations, and symbols New to this edition: The scientific fields and the nationalities of the more than 115 scientists mentioned in the book, providing a nice personal touch While adding over 100 new or updated references, reference of special importance historically are retained, showing how science has advanced over the ages The often challenging problems at the end of each chapter provide an important test of the mastery of the topics covered. Moreover, the solutions to the problems are presented in detail at the end of the book. The book can thus be used in courses but also especially useful for students or other persons studying this often difficult material on their own Finally and most important, the fifth edition continues the emphasis of a quantitative approach begun fifty years ago by Park Nobel (1970) with the publication of his first book in the series. Over the next fifty years from 1970 to 2020, the author has gained considerable experience on how to present quantitative and often abstract material to students. This edition is most likely the final version in the series, which not only covers some of his unique contributions but also has helped countless students and colleagues appreciate the power and insight gained into biology from calculations!

Photophysiology

Author : Arthur C. Giese
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Photophysiology: Current Topics in Photobiology and Photochemistry, Volume VIII is a collection of papers that discusses the photobiological phenomena of plants. This collection presents comparative studies on photosynthesis blending at the molecular, cellular, and plant levels. Some papers also analyze the photosynthesis in the green algae by using genetic methods, as well as the physical separation of photosynthetic system I from system II. One paper discusses the role of cation fluxes in chloroplast activity, including the measurement of ion fluxes in organelle suspensions. Another paper investigates the inter-relationships of photosynthesis and nitrogen fixation in a photosynthetic bacteria. One paper reviews the electrical activities of individual cells and describes the techniques of recording evoked potentials or the minute electrical signals produced from sensory stimuli that are recordable from electrodes attached on the human scalp. One paper considers the inhibitory effects of blue light and near-ultraviolet radiation on the growth and respiration of some organisms. Bio-chemists, photobiologists, photochemists, and researchers involved in plant biology and photophysiology will find this volume highly informative and challenging.

Photobiology

Author : Lars Olof Björn
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Photobiology - the science of light and life - begins with basic principles and the physics of light and continues with general photobiological research methods, such as generation of light, measurement of light, and action spectroscopy. In an interdisciplinary way, it then treats how organisms tune their pigments and structures to the wavelength components of light, and how light is registered by organisms. Then follow various examples of photobiological phenomena: the design of the compound eye in relation to the properties of light, phototoxicity, photobiology of the human skin and of vitamin D, photomorphogenesis, photoperiodism, the setting of the biological clock by light, and bioluminescence. A final chapter is devoted to teaching experiments and demonstrations in photobiology. This book encompasses topics from a diverse array of traditional disciplines: physics, biochemistry, medicine, zoology, botany, microbiology, etc., and makes different aspects of photobiology accessible to experts in all these areas as well as to the novice.

The Science of Photobiology

Author : Kendric C. Smith
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The first edition of The Science of Photobiology was published in 1977, and was the first textbook to cover all of the major areas of photobiology. The science of photobiology is currently divided into 14 subspecialty areas by the American Society for Photobiology. In this edition, however, the topics of phototechnology and spectroscopy have been com bined in a new chapter entitled "Photophysics." The other subspecialty areas remain the same, i.e., Photochemistry, Photosensitization, UV Radiation Effects, Environmental Photobiology, Photomedicine, Circadian Rhythms, Extraretinal Photoreception, Vision, Photomorphogenesis, Photomovement, Photosynthesis, and Bioluminescence. This book has been written as a textbook to introduce the science of photobiology to advanced undergraduate and graduate students. The chapters are written to provide a broad overview of each topic. They are designed to contain the amount of information that might be presented in a one-to two-hour general lecture. The references are not meant to be exhaustive, but key references are included to give students an entry into the literature. Frequently a more recent reference that reviews the literature will be cited rather than the first paper by the author making the original discovery. The chapters are not meant to be a repository of facts for research workers in the field, but rather are concerned with demon strating the importance of each specialty area of photobiology, and documenting its relevance to current and/or future problems of man.

Photochemical and Photobiological Reviews

Author : Kendric C. Smith
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The goals of the science of photobiology can be divided into four categories: to develop (I) ways to optimize the beneficial effects of light on man and his environment, (2) methods to protect organisms, including man, from the detrimental effects of light, (3) photochemical tools for use in studies of life processes, and (4) photochemical therapies in medicine. To achieve these goals will require the knowledgeable collaboration of biologists, chemists, engineers, mathematicians, physicians, and physicists; because photobiology is a truly multidisciplinary science. While a multidis ciplinary science is more intellectually demanding, it also has a greater potential for unexpected breakthroughs that can occur when data from several areas of science are integrated into new concepts for theoretical or practical use. Photochemical and Photobiological Reviews continues to provide in depth coverage of the many specialty areas of photobiology. It is hoped that these reviews will provide an important service to the younger scientists in the field and to senior scientists in related fields, because they provide a ready access to the recent literature in the field, and more importantly, they frequently offer a critical evaluation of the direction that the field is taking, or suggest a redirection when appropriate. Since it is important that this review series remain responsive to the needs of photochemists and photobiologists, the Editor would value com ments and suggestions from its readers.

Antioxidants and Antioxidant Enzymes in Higher Plants

Author : Dharmendra K. Gupta
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This book provides an overview of antioxidants and antioxidant enzymes and their role in the mechanisms of signaling and cellular tolerance under stress in plant systems. Major reactive oxygen species (ROS)-scavenging/modulating enzymes include the superoxide dismutase (SOD) that dismutates O2 into H2O2, which is followed by the coordinated action of a set of enzymes including catalase (CAT), ascorbate peroxidase (APX), glutathione peroxidase (GPX) and peroxiredoxins (Prx) that remove H2O2. In addition to the ROS scavenging enzymes, a number of other enzymes are found in various subcellular compartments, which are involved in maintaining such redox homeostasis either by directly scavenging particular ROS and ROS-byproducts or by replenishing antioxidants. In that respect, these enzymes can be also considered antioxidants. Such enzymes include monodehydroascorbate reductase (MDAR), dehydroascorbate reductase (DHAR), glutathione reductase (GR), alternative oxidases (AOXs), peroxidases (PODs) and glutathione S-transferases (GSTs). Some non-enzymatic antioxidants, such as ascorbic acid (vitamin C), carotenes (provitamin A), tocopherols (vitamin E), and glutathione (GSH), work in concert with antioxidant enzymes to sustain an intracellular steady-state level of ROS that promotes plant growth, development, cell cycles and hormone signaling, and reinforces the responses to abiotic and biotic environmental stressors. Offering a unique compilation of information on antioxidants and antioxidant enzymes, this is a valuable resource for advanced students and researchers working on plant biochemistry, physiology, biotechnology, and signaling in cell organelles, and those specializing in plant enzyme technology.

Mechanisms of Environmental Stress Resistance in Plants

Author : Amarjit Basra
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Plant growth and productivity are limited in many areas of the world by a wide variety of environmental stresses. This book discusses progress made toward the major goal of uncovering the plant resistance mechanisms to biotic and abiotic stresses; the purpose being to utilise this knowledge in genetic modification of plants for achieving improved stress resistance. This volume achieves a new synthesis in considering the mechanisms of resistance at various levels of organisation -- from individual cells and tissues, through whole plants, to communities. Chapters are written by internationally acknowledged experts, who have a wealth of research and teaching experience. With comprehensive and up-to-date coverage, this book analyses many outstanding problems and poses important questions for future research.

Plants and UV B

Author : Peter Lumsden
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A comprehensive review of this important aspect of environmental change.

Photobiological Techniques

Author : Dennis Paul Valenzeno
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The fIrst edition of the Science 0/ Photobiology edited by Kendric C. Smith (plenum Press, 1977) was a comprehensive textbook of photobiology, devoting a chapter to each of the subdisciplines of the fIeld. At the end of many of these chapters there were brief descriptions of simple experiments that students could perform to demonstrate the principles discussed. In the succeeding years some photobiologists felt that a more complete publica tion of experiments in photobiology would be a useful teaching tool. Thus, in the 1980s the American Society for Photobiology (ASP) attempted to produce a laboratory manual in photobiology. Cognizant of these efforts, Kendric Smith elected to publish the second edition of The Science o/Photobiology (1989) without experiments; anticipating the comple tion of the ASP laboratory manual. Unfortunately, the initial ASP efforts met with limited success, and several years were to pass before a photobiology laboratory manual became a reality. One of the major stumbling blocks to production of an accurate and reliable laboratory manual was the requirement that the experiments be tested, not just by the author who is familiar with the techniques, but by students who may be quite new to photobiology. How could this be accomplished with limited resources? Many ideas were considered and discarded, before a workable solution was found. The catalyst that enabled the careful screening of all experiments in this book was a NATO Advanced Study Institute (ASI) devoted entirely to this purpose.

UV B Radiation and Plant Life

Author : Brian R Jordan
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Ultraviolet-B radiation (UV-B) has profound effects on plant growth and development, and exposure varies with ozone depletion and across geographic regions, with ecosystem and agricultural consequences. This book deals with large-scale impacts but also how UV-B affects plants at the molecular level is also fascinating, and the UV-B photoreceptor has only recently been characterised. While UV-B radiation can be damaging, it also has a more positive role in plant photomorphogenesis. Consequently UV-B treatments are being developed as innovative approaches to improve horticulture. This book is a timely synthesis of what we know and need to know about UV-B radiation and plants.

Lasers in Photomedicine and Photobiology

Author : R. Pratesi
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This Conference on biomedical applications of. lasers ~Ias organized by the Quantum Electronics Divisional Board of the European Physical Society (E.P.S.) and held at the Villa of Poggio Imperiale in Florence, September 3-6, 1979. As kno~m, laser surgery (especially microsurgery and endoscopic photo coagulation) has recently made important progress, and the field is expand i ng rapidly. Very significant applications of lasers have also been achieved in Bi ology during recent years (cell microsurgery, cell counting and sorting, cytofluorimeter devices, etc.) and the potential of laser techniques in this field is nO~1 sufficiently well establ ished. A new class of applications of laserradiJtion in Medicine has recently been made possible by important results obtained with low intensity (non coagulative) visible lasers, such as photodynamic therapy of tumors. At the same time important branches of Medicine, where light effects are studied and optical techniques are presently used for a certain number of clinical applications, such as dermatology and pediatry, appear to be still in their infancy as far as the proper use of optical radiation and techniques, and the understanding of fundamental photoinduced biological processes are con cerned. Moreover, laser photobiology appears a very promising field for the investigation of fundamental processes at the biomolecular level.

Photochemical Photoelectrochemical and Photobiological Processes

Author : France) Ec Contractor's Meeting (1981 Cadarache
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Proceedings of the EC Contractors' Meeting held in Cadarache, 26-28 October 1981

Photochemical and Photobiological Reviews

Author : Kendric Smith
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A stone carving from the 14th century B.C. records that the Egyptian pharaoh Akhenaten (born Amenhoteph IV) and his wife, Nefertiti, recognized the importance of sunlight to life. In fact, Akhenaten initiated a monotheistic religion, with Aton, the sun, as God. One of his daughters be came the wife of King Tut Ankamon, the spelling of whose name indicates a return to the old religion and an eclipse of interest in photobiology among the pharaohs. A renewal of interest in photobiology in modern times was climaxed in 1928 by the establishment of an international organization for photobiology under the title Comite International de la Lumiere (C.I.L.). Its present title, Comite International de Photobiologie (C.I.P.), was adopted at a meeting in Paris in 1951. The first of a series of international congresses on photobiology was held in 1954 and probably represents the beginning of modern day photobiology. Medical men were prominent in the activities of the old C.I.L., for the importance of natural sunlight in human health and disease was obvious though not well understood. The bringing together of physicians with physicists, chemists, and biologists from the pure and applied branches of their subjects was the aim of the older C.I.L. and continues to the present day through the C.I.P.

Advances in Botanical Research

Author :
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Harmonious, integrated functioning of the whole plant system requires that its various cells, tissues and organs should be able to communicate with each other, transferring a range of information on environmental conditions, physiological and microbial stresses etc. In this volume of Advances in Botanical Research incorporating Advances in Plant Pathology three articles are concerned with different aspects of plant signalling. McDonald and Davis consider how shoot systems respond to drying and N-deficient soil, in terms of their stomatal behaviour and growth, via the transmission of root-derived chemical signals. Malone considers the major hypotheses that have been proposed with particular attention being given to hydraulic pressure signals and the hydraulic dispersal of chemical signals. At a different, intracellular level of communication, a wide variety of second messengers couple extracellular stimuli to a characteristic physiological response. Webb et al. Consider progress made in establishing similar roles for calcium in plant signalling in the context of the mammalian paradigms. The effects of UV-B radiation on plants have been extensively investigated in recent years. Jordan considers progress in understanding the chain of events from perception of UV-B to signal transduction and consequent changes in gene expression and regulation. Smith and Smith assess the various hypotheses erected over the years to explain structure and function of the host-parasite interface formed by vesticular-arbuscular (VA) mycorrhizas, an important and widespread mutualistic symbioses of a wide range of higher and some lower plants.

UV B Radiation

Author : Vijay Pratap Singh
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Chapter 15 UVR8 Signalling, Mechanism and Integration with other Pathways

CRC Handbook of Organic Photochemistry and Photobiology Third Edition Two Volume Set

Author : Axel Griesbeck
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The only combined organic photochemistry and photobiology handbookAs spectroscopic, synthetic and biological tools become more and more sophisticated, photochemistry and photobiology are merging-making interdisciplinary research essential. Following in the footsteps of its bestselling predecessors, the CRC Handbook of Organic Photochemistry and Pho

Photobiology

Author : E. Riklis
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It is not always the case that the subject of a scientific book and its relevance to everyday li fe are so timely. Photobiology and its si ster subject Radiobiology are now a must for understanding the environment we live in and the impact light, ultraviolet light, and radiation have on all aspects of our life. Photobiology is a true interdisciplinary field. Photobiology research plays a direct role in diverse fields, and a glance at the topics of the symposia covered in this book by over 100 articles shows the breadth and depth of knowledge acquired in fundamental research and its impact on the major issues and applied problems the world is facing. Half a century of photobiology research brought about an understanding of the importance of light to life, both as a necessary source of energy and growth as weIl as its possible dangers. Research in photochemistry and photobiology led to the discoveries of ceIlular repair mechanisms of UV induced damages to DNA and this led to understanding of the effects of hazardous environmental chemieals and mutagenecity , and to the development of genetic engineering. This topic was given due emphasis in several symposia and chapters in this book.