Download or read book The Photoreduction of Protochlorophyllide and Greening written by C. J. Walker and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protochlorophyllide Reduction and Greening written by C. Sironval and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Meeting held at the University of Liège, Belgium, 8-9 August 1983
Download or read book Photoreduction of Protochlorophyllide a to Chlorophyllide a During the Biogenesis of the Photosynthetic Apparatus in Highter Plants written by Benoit Schoefs and published by Universal-Publishers. This book was released on 2000-08 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is divided into 4 chapters summarizing this contribution on selected topics related to chlorophyll biosynthesis and biogenesis of the photosynthetic apparatus. The first chapter deals with the state of Pchlide in nonilluminated leaves. The comparison of the photoactive Pchlide absorbance spectra throughout the development in the dark, reveals that the proportion of P638-645 and P650-657 is not much modified during this period. The Gaussian deconvolutions of 77 K fluorescence spectra of nonphotoactive and photoactive Pchlide indicated the presence of three and 5 spectral forms, respectively. None of the nonphotoactive Pchlide forms is accumulated during the dark-growth. In constrast, photoactive Pchlide P650-657 is particularly accumulated. In the second chapter, we describe the photoreduction of Pchlide to Chlide. We conclude that the mechanism of photoreduction is independent on the leaf developmental stage. Using 77 K fluorescence spectroscopy, the Chlide spectral forms corresponding to the three photoactive Pchlides were identified. In leaves with proplastids, C670-675 is mainly formed whereas in leaves with etioplasts C684-696 is produced. During the 1st hour of greening, the newly formed Chlide molecules are not protected by carotenoids. The evidence for the involvement of a photocycle involving two spectral forms of Chlide in protection of newly formed Chlide is presented. In the third chapter, a method for the isolation of photoactive Pchlide yielding complexes characterized by spectral properties similar to those found in intact leaves is described. In the fourth chapter, it is explained that the different fates of the first products of the photoreduction, described in the 2nd chapter, influence the greening process. In fact, C684-696 is only produced in small amounts in plants with proplastids. Therefore the increase of the photosynthetic activity of these leaves is delayed. Nevertheless, during the first 8 h of greening, a weak photosynthetic activity is detected in these leaves. Fluorescence measurements reveal that a large part of the Chl remains nonintegrated to the photosystems. In young leaves, rapid Chl integration into the photosynthetic units occurs when both carotenoids and Chl are massively synthesized.
Download or read book Handbook of Plant and Crop Physiology written by Mohammad Pessarakli and published by CRC Press. This book was released on 2001-09-18 with total page 997 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from over 70 international experts, this reference provides comprehensive coverage of plant physiological stages and processes under both normal and stressful conditions. It emphasizes environmental factors, climatic changes, developmental stages, and growth regulators as well as linking plant and crop physiology to the production of food, feed, and medicinal compounds. Offering over 300 useful tables, equations, drawings, photographs, and micrographs, the book covers cellular and molecular aspects of plant and crop physiology, plant and crop physiological responses to heavy metal concentration and agrichemicals, computer modeling in plant physiology, and more.
Download or read book Pigment Protein Complexes in Plastids written by Christer Sundqvist and published by Elsevier. This book was released on 2013-09-17 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pigment-Protein Complexes in Plastids: Synthesis and Assembly covers the different aspects of biosynthesis, assembly, and function of pigment-protein complexes. This book focuses on the molecular biology and physiological relevance of chlorophyll-protein complexes. The regulation and biosynthesis of chlorophyll proteins that involve a coordinated expression of nuclear and plastid genes and require communication among the cell organelles to respond properly to changing light and temperature conditions are also deliberated. This publication is intended for researchers in the fields of plant molecular biology, genetics, plant physiology and biochemistry, and cell biology, as well as students and teachers in agriculture, horticulture, biology, and biochemistry interested in pigment-protein complexes.
Download or read book Handbook of Photosynthesis written by Mohammad Pessarakli and published by CRC Press. This book was released on 2005-03-29 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quite naturally, photosynthesis has achieved massive amounts of attention in recent years. Aside from being the most spectacular physiological process in plant growth, it is actually the key to our dealing with the potentially cataclysmic accumulation of carbon dioxide in the earth’s atmosphere. Unfortunately, while information is plentiful, all this attention has resulted in a scattered database on photosynthesis, with no contemporary starting point...at least until now. With the second edition of the Handbook of Photosynthesis, Mohammad Pessarakli once again fills the need for an authoritative and balanced resource by assembling a team of experts from across the globe. Together, they have created a comprehensive reference that in a single volume includes important background information, as well as the most recent research findings on photosynthesis. Completely Revised with Several New Chapters The handbook, a completely updated reworking of the critically acclaimed first edition, details all of the photosynthetic factors and processes under both normal and stressful conditions, covering lower and higher plants as well as related biochemistry and plant molecular biology. Divided into fourteen sections for ease of reference, with nearly 8000 bibliographic citations, the handbook contains authoritative contributions from over 80 scientists. It includes approximately 500 drawings, photographs, tables, and equations— all designed to reinforce and clarify important text material.
Download or read book Food Colorants written by Carmen Socaciu and published by CRC Press. This book was released on 2007-10-24 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing on the expertise of internationally known, interdisciplinary scientists and researchers, Food Colorants: Chemical and Functional Properties provides an integrative image of the scientific characteristics, functionality, and applications of color molecules as pigments in food science and technology, as well as their impact on health. The boo
Download or read book Fruit and Vegetable Phytochemicals written by Elhadi M. Yahia and published by John Wiley & Sons. This book was released on 2017-08-29 with total page 1445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in two volumes and containing more than seventy chapters, the second edition of Fruit and Vegetable Phytochemicals: Chemistry, Nutritional Value and Stability has been greatly revised and expanded. Written by hundreds of experts from across the world, the chapters cover diverse aspects of chemistry and biological functions, the influence of postharvest technologies, analysis methods and important phytochemicals in more than thirty fruits and vegetables. Providing readers with a comprehensive and cutting-edge description of the metabolism and molecular mechanisms associated with the beneficial effects of phytochemicals for human health, this is the perfect resource not only for students and teachers but also researchers, physicians and the public in general.
Download or read book The Porphyrin Handbook written by Karl Kadish and published by Elsevier. This book was released on 2012-12-02 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Porphyrin Handbook, Volume 12: The Iron and Cobalt Pigments: Biosynthesis, Structure, and Degradation provides information pertinent to every aspect of the chemistry, synthesis, spectroscopy, and structure of phthalocyanines. This book presents the biochemical and clinical aspects of genetically transmitted or drug-induced diseases associated with errors in heme metabolism. Organized into eight chapters, this volume begins with an overview of the comparison of regulatory principles in animal and plant tetrapyrrole biosynthesis. This text then examines the biology and medical implications of porphyrin systems. Other chapters consider the transformation of hemes into bile pigments, the organic synthesis of bilins, and the pathways of degradation of chlorophyll in senescent plants. This book discusses as well the biosynthesis of porphyrins, vitamin B12, and chlorophylls. The final chapter deals with genome sequencing projects that provide sources of genes encoding the enzymes needed for the synthesis of the intermediates. This book is a valuable resource for research scientists, engineers, and clinicians.
Download or read book Chlorophylls written by Hugo Scheer and published by Springer. This book was released on 1991-05-24 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Chlorophyll Research and Application 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-06-21 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Chlorophyll Research and Application: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Chlorophyllides. The editors have built Advances in Chlorophyll Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Chlorophyllides in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Chlorophyll Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
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 Biosynthesis of Tetrapyrroles written by P.M. Jordan and published by Elsevier. This book was released on 1991-11-21 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the structure and function of tetrapyrrolic compounds has excited the interests of organic chemists, biochemists, botanists and biologists for more than a hundred years. Scientific analysis began with the first descriptions of naturally occurring porphyrins, and progress was made towards understanding the structure of chlorophyll. This was followed by the use of newly available isotopes of carbon and nitrogen to investigate the formation of porphyrins in biological systems. Further discoveries led to the elucidation of the atoms in protoporphyrin IX, made possible by the application of physical methods, such as NMR spectroscopy and recombinant DNA technology. The present volume discusses many more exciting and unexpected developments which have been made in the field over the last ten to fifteen years. While not all questions have yet been answered, the forum is set for a great scope of further research in the study of tetrapyrroles. • Of interest to biochemists, organic chemists and plant scientists • The book focusses on the exciting and unexpected developments in the field of tetrapyrolles over the last ten years • It paves the way for future research in this area
Download or read book Israel Journal of Botany written by and published by . This book was released on 1984 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plastid Development in Leaves during Growth and Senescence written by Basanti Biswal and published by Springer Science & Business Media. This book was released on 2013-07-08 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chloroplast development is a key feature of leaf developmental program. Recent advances in plant biology reveal that chloroplasts also determine the development, the structure and the physiology of the entire plant. The books, published thus far, have emphasized the biogenesis of the organelle, but not the events associated with the transformation of the mature chloroplast to the gerontoplast during senescence. This book, with 28 chapters, is unique because it describes how the chloroplast matures and how it is subsequently transformed to become the gerontoplast during senescence, a process required for nutrient recycling in plants. This book includes a state-of-the-art survey of the current knowledge on the regulation and the mechanisms of chloroplast development. Some of the chapters critically discuss the signaling process, the expression potential of plastid DNA, the interaction of cellular organelles, and the molecular mechanisms associated with the assembly and the disassembly of organellar complexes and finally the modulation of chloroplast development by environmental signals.
Download or read book Primary Processes of Photosynthesis written by G. Renger and published by Royal Society of Chemistry. This book was released on 2008 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume forms part of a two-volume set and is not available for individual purchase. Please view the complete pack (ISBN: 978-0-85404-364-4) for purchase options.
Download or read book The Growth and Functioning of Leaves written by J. E. Dale and published by CUP Archive. This book was released on 1983-06-02 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1983 book investigates the generation of leaves, their persistence and eventual senescence.
