The Photosystems
DOWNLOAD
Download The Photosystems PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get The Photosystems book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
The Photosystems
DOWNLOAD
Author : J. Barber
language : en
Publisher: Elsevier
Release Date : 2015-12-04
The Photosystems written by J. Barber and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-04 with Science categories.
There is very little in this eleventh volume of Topics in Photosynthesis which could have been written when the first volume was published fifteen years ago. Advances over the last decade have been spectacular, most particularly in our understanding of the photosystems that is the subject of this volume. After a comparative introducution of bacterial and plant photosystems, the book begins with a consideration of what is theoretically possible in energy conversion. This is followed by light harvesting in photosystems II, followed by its molecular biology, protein engineering, thermoluminescence, photoinhibition, the effect of herbicides and heat shock, and, most important function of all and one about which so little is yet understood at the molecular level, the process by which it evolves oxygen. The last three chapters deal with the equivalent processes of photosystem I. The whole volume tells the story of a natural system of incredible ingenuity and complexity, but which as the chapters unfold, is seen to be within our grasp and eventual ability to comprehend.
Assembly Of The Photosystem Ii Membrane Protein Complex Of Oxygenic Photosynthesis
DOWNLOAD
Author : Julian J. Eaton-Rye
language : en
Publisher: Frontiers Media SA
Release Date : 2017-08-08
Assembly Of The Photosystem Ii Membrane Protein Complex Of Oxygenic Photosynthesis written by Julian J. Eaton-Rye and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-08 with categories.
Photosystem II is a 700-kDa membrane-protein super-complex responsible for the light-driven splitting of water in oxygenic photosynthesis. The photosystem is comprised of two 350-kDa complexes each made of 20 different polypeptides and over 80 co-factors. While there have been major advances in understanding the mature structure of this photosystem many key protein factors involved in the assembly of the complex do not appear in the holoenzyme. The mechanism for assembling this super-complex is a very active area of research with newly discovered assembly factors and subcomplexes requiring characterization. Additionally the ability to split water is inseparable from light-induced photodamage that arises from radicals and reactive O2 species generated by Photosystem II chemistry. Consequently, to sustain water splitting, a “self repair” cycle has evolved whereby damaged protein is removed and replaced so as to extend the working life of the complex. Understanding how the biogenesis and repair processes are coordinated is among several important questions that remain to be answered. Other questions include: how and when are the inorganic cofactors inserted during the assembly and repair processes and how are the subcomplexes protected from photodamage during assembly? Evidence has also been obtained for Photosystem II biogenesis centers in cyanobacteria but do these also exist in plants? Do the molecular mechanisms associated with Photosystem II assembly shed fresh light on the assembly of other major energy-transducing complexes such as Photosystem I or the cytochrome b6/f complex or indeed other respiratory complexes? The contributions to this Frontiers in Plant Science Research Topic are likely to reveal new details applicable to the assembly of a range of membrane-protein complexes, including aspects of self-assembly and solar energy conversion that may be applied to artificial photosynthetic systems. In addition, a deeper understanding of Photosystem II assembly — particularly in response to changing environmental conditions — will provide new knowledge underpinning photosynthetic yields which may contribute to improved food production and long-term food security.
Engineering Principles Of Photosystems And Their Practical Application As Long Lived Charge Separation In Maquettes
DOWNLOAD
Author : Zhenyu Zhao
language : en
Publisher:
Release Date : 2016
Engineering Principles Of Photosystems And Their Practical Application As Long Lived Charge Separation In Maquettes written by Zhenyu Zhao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Light-activated electron transfer reactions between cofactors embedded in proteins serve as the central mechanism underlying numerous biological processes essential to the survival and prosperity of most organisms on this planet. These processes range from navigation, to DNA repair, to metabolism, and to solar energy conversion. The proper functioning of these processes relies on the creation of a charge-separated states lasting for a necessary length of time, from tens of nanoseconds to hundreds of milliseconds, by the arrays of cofactors in photosystems. In spite of decades of experiments and theoretical frameworks providing detailed and extensive description of the behavior of the photosystems, coherent and systematic understanding is lacking regarding the underlying structural and chemical engineering principles that govern the performance of charge-separation in photosystems, evaluated by the fraction of the input energy made available by the photosystem for its intended function. This thesis aims to establish a set of engineering principles of natural and man-made photosystems based on the fundamental theories of electron transfer and the biophysical and biochemical constraints imposed by the protein environment, and then to apply these engineering principles to design and construct man-made photosystems that can excel in charge-separation while incurring minimal cost in their construction. Using the fundamental theories of electron transfer, this thesis develops an efficient computational algorithm that returns a set of guidelines for engineering optimal light-driven charge-separation in cofactor-based photosystems. This thesis then examines the validity of these guidelines in natural photosystems, discovering significant editing and updating of these guidelines imposed by the biological environment in which photosystems are engineered by nature. This thesis then organizes the two layers of engineering principles into a concise set of rules and demonstrates that they can be applied as guidelines to the practical construction of highly efficient man-made photosystems. To test these engineering guidelines in practice, the first ever donor-pigment-acceptor triad is constructed in a maquette and successfully separates charges stably for >300ms, establishing the world record in a triad. Finally, this work looks ahead to the engineering of the prescribed optimal tetrads in maquettes, identifying what’s in place and what challenges yet remain.
The Photosystems Structure Function And Molecular Biology
DOWNLOAD
Author : James Barber
language : en
Publisher:
Release Date : 1976
The Photosystems Structure Function And Molecular Biology written by James Barber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Photosynthesis categories.
Oxygenic Photosynthesis The Light Reactions
DOWNLOAD
Author : Donald R. Ort
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-11
Oxygenic Photosynthesis The Light Reactions written by Donald R. Ort and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-11 with Science categories.
Structure and function of the components of the photosynthetic apparatus and the molecular biology of these components have become the dominant themes in advances in our understanding of the light reactions of oxygenic photosynthesis. Oxygenic Photosynthesis: The Light Reactions presents our current understanding of these reactions in thylakoid membranes. Topics covered include the photosystems, the cytochrome b6-f complex, plastocyanin, ferredoxin, FNR, light-harvesting complexes, and the coupling factor. Chapters are also devoted to the structure of thylakoid membranes, their lipid composition, and their biogenesis. Updates on the crystal structures of cytochrome f, ATP synthase and photosystem I are presented and a section on molecular biology and evolution of the photosynthetic apparatus is also included. The chapters in this book provide a comprehensive overview of photosynthetic reactions in eukaryotic thylakoids. The book is intended for a wide audience, including graduate students and researchers active in this field, as well as those individuals who have interests in plant biochemistry and molecular biology or plant physiology.
Interactions Of The Photosystems During Chloroplast Development In Wheat Leaves
DOWNLOAD
Author : Andrew Neil Webber
language : en
Publisher:
Release Date : 1984
Interactions Of The Photosystems During Chloroplast Development In Wheat Leaves written by Andrew Neil Webber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Isolation And Characterization Of The Photosystems From The Red Alga Porphyridium Cruentum
DOWNLOAD
Author : Gregory Robert Wolfe
language : en
Publisher:
Release Date : 1993
Isolation And Characterization Of The Photosystems From The Red Alga Porphyridium Cruentum written by Gregory Robert Wolfe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Photosynthesis categories.
Photosystem I
DOWNLOAD
Author : John H. Golbeck
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-20
Photosystem I written by John H. Golbeck and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-20 with Science categories.
This book summarizes recent advances made in the biophysics, biochemistry, and molecular biology of the enzyme known as Photosystem I, the light-induced plastocyanin: ferredoxin oxidoreductase. The volume provides a unique compilation of chapters that includes information highlighting controversial issues to indicate the frontiers of research and places special emphasis on methodology and practice for new researchers.
Ebook Biology
DOWNLOAD
Author : Peter Raven
language : en
Publisher: McGraw Hill
Release Date : 2013-02-16
Ebook Biology written by Peter Raven and has been published by McGraw Hill this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-02-16 with Science categories.
Committed to Excellence in the Landmark Tenth Edition. This edition continues the evolution of Raven & Johnson’s Biology. The author team is committed to continually improving the text, keeping the student and learning foremost. We have integrated new pedagogical features to expand the students’ learning process and enhance their experience in the ebook. This latest edition of the text maintains the clear, accessible, and engaging writing style of past editions with the solid framework of pedagogy that highlights an emphasis on evolution and scientific inquiry that have made this a leading textbook for students majoring in biology and have been enhanced in this landmark Tenth edition. This emphasis on the organizing power of evolution is combined with an integration of the importance of cellular, molecular biology and genomics to offer our readers a text that is student friendly and current. Our author team is committed to producing the best possible text for both student and faculty. The lead author, Kenneth Mason, University of Iowa, has taught majors biology at three different major public universities for more than fifteen years. Jonathan Losos, Harvard University, is at the cutting edge of evolutionary biology research, and Susan Singer, Carleton College, has been involved in science education policy issues on a national level. All three authors bring varied instructional and content expertise to the tenth edition of Biology.
Photosynthetic Unit And Photosystems
DOWNLOAD
Author : Aloysius Wild
language : en
Publisher:
Release Date : 1997
Photosynthetic Unit And Photosystems written by Aloysius Wild and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Science categories.