Author: Udaya C. Biswal Publisher: Springer Science & Business Media ISBN: 9401702470 Category : Science Languages : en Pages : 378
Book Description
Chloroplast is the organelle where the life-giving process photosynthesis takes place; it is the site where plants and algae produce food and oxygen that sustain our life. The story of how it originates from proplastids, and how it ultimately dies is beautifully portrayed by three authorities in the field: Basanti Biswal, Udaya Biswal and M. K. Raval. I consider it a great privilege and honor to have been asked to write this foreword. The book ' Chloroplast biogenesis: from proplastid to gerontoplast' goes much beyond photosynthesis. The character of the book is different from that of many currently available books because it provides an integrated approach to cover the entire life span of the organelle including its senescence and death. The books available are mostly confined to the topics relating to the 'build up' or development of chloroplast during greening. The story of organelle biogenesis without description of the events associated with its regulated dismantling during genetically programmed senescence is incomplete. A large volume of literature is available in this area of chloroplast senescence accumulated during the last 20 years. Although some of the findings in this field have been organized in the form of reviews, the data in the book are generalized and integrated with simple text and graphics. This book describes the structural features of prop las tid and its transformation to fully mature chloroplast, which is subsequently transformed into gerontoplast exhibiting senescence syndrome. The book consists of five major chapters.
Author: Joan H. Argyroudi-Akoyunoglou Publisher: Springer Science & Business Media ISBN: 146153366X Category : Science Languages : en Pages : 620
Book Description
From July 28 to August 3, 1991, an International Meeting on the REGULATION OF CHLOROPLAST BIOGENESIS was held at the capsis Beach Hotel in Aghia Pelaghia, on the island of crete, Greece. The Meeting (Advanced Research Workshop-Lecture Course) was co-sponsored by NATO, FEBS and IUB, and was held under the auspices of the International society for Chloro plast Development, the Greek Ministry of Industry, Research and Technol ogy, and the National Center for Scientific Research "Demokritos". The Meeting focused on recent advances in the field of chloroplast biogenesis and the regulatory mechanisms underlined, and brought together over 120 experts and students of the field from 22 countries. The subject of chloroplast biogenesis has experienced great progress in recent years mainly thanks to the application of Molecular Biology techniques and methodology. New findings that emerge gradually unravel the regulatory mechanisms involved in the assembly, stabilization and growth of the photosynthetic units in thylakoids, the signal transduction chain leading from photoreception to gene expression, the transport of nuclear-coded proteins into stroma-soluble supramolecular enzyme complexes as well as thylakoid-bound supramolecular complexes, involved in light-energy transduction. It was the aim of this meeting to bring together experts and students coming from diverse disciplines (ranging from Botany and plant physiology to Molecular Biology, Biophysics and Biotechnology), to discuss the recent advances in the field so that thorough exchange of ideas and working hypotheses would be achieved.
Author: Eberhard Schäfer Publisher: Springer Science & Business Media ISBN: 1402038119 Category : Science Languages : en Pages : 695
Book Description
This unique resource reviews progress made by scientists researching into how ambient changes in the wavelength, intensity, direction and duration of light environment affect plant growth and development. It explains how combinations of new research with classical photobiology and physiology have made it feasible to interpret intriguing light dependent phenomena such as phototropism, determination of flowering time, shade avoidance etc. at molecular level. Written by over 20 leading experts in the field the book covers major breakthroughs achieved in the last decade. It is generously referenced with more than 2389 bibliographic citations.
Author: Ralph Bock Publisher: Springer Science & Business Media ISBN: 3540753761 Category : Science Languages : en Pages : 535
Book Description
The present book provides a comprehensive overview of our current knowledge on plastid biogenesis, plastid-nuclear communication, and the regulation of plastid gene expression at all levels. It also assesses the state-of-the-art in key technologies, such as proteomics and chloroplast transformation. Written by recognized experts in the field, the book further covers crucial post-translational processes in plastid biogenesis and function, including protein processing.
Author: Eva-Mari Aro Publisher: Springer Science & Business Media ISBN: 0306481480 Category : Science Languages : en Pages : 624
Book Description
This book covers the expression of photosynthesis related genes including regulation both at transcriptional and translational levels. It reviews biogenesis, turnover, and senescence of thylakoid pigment protein complexes and highlights some crucial regulatory steps in carbon metabolism.
Author: Basanti Biswal Publisher: Springer Science & Business Media ISBN: 9400757247 Category : Science Languages : en Pages : 707
Book Description
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.
Author: Steven M. Theg Publisher: Springer ISBN: 1493911368 Category : Science Languages : en Pages : 585
Book Description
Plastids are the sites of conversion of solar energy into the chemical energy usable to sustain life. They are also responsible for the production of the vast majority of the oxygen in the atmosphere. Through these activities they play a unique role in the biosphere, producing two critical products upon which life on Earth depends. It covers in 21 chapters nearly all actively investigated areas of plastid biology, from biosynthesis to function to their uses in biotechnology. The editors have compiled an extensive list of international experts from whom to solicit chapters. As is evident from the suggested Table of Contents, the book will start with a discussion of genetic material and its expression, followed by differentiation and development of different plastid types and internal organization. This is followed by an in depth look at biogenesis and assembly of plastid proteins and protein complexes and then by the important metabolic functions in plastids. The book will end with two chapters discussing the role of plastid biology in protein expression biotechnology and in hydrogen and biofuel production.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The immutans (im) variegation mutant of Arabidopsis is an ideal model to gain insight into factors that control chloroplast biogenesis. im defines the gene for PTOX, a plastoquinol terminal oxidase that participates in control of thylakoid redox. Here, we report that the im defect can be suppressed during the late stages of plant development by gigantea (gi2), which defines the gene for GIGANTEA (GI), a central component of the circadian clock that plays a poorly-understood role in diverse plant developmental processes. imgi2 mutants are late-flowering and display other well-known phenotypes associated with gi2, such as starch accumulation and resistance to oxidative stress. We show that the restoration of chloroplast biogenesis in imgi2 is caused by a developmental-specific de-repression of cytokinin signaling that involves crosstalk with signaling pathways mediated by gibberellin (GA) and SPINDLY (SPY), a GA response inhibitor. Suppression of the plastid defect in imgi2 is likely caused by a relaxation of excitation pressures in developing plastids by factors contributed by gi2, including enhanced rates of photosynthesis and increased resistance to oxidative stress. Interestingly, the suppression phenotype of imgi can be mimicked by crossing im with the starch accumulation mutant, sex1, perhaps because sex1 utilizes pathways similar to gi. We conclude that our studies provide a direct genetic linkage between GIGANTEA and chloroplast biogenesis, and we construct a model of interactions between signaling pathways mediated by gi, GA, SPY, cytokinins, and sex1 that are required for chloroplast biogenesis.