The Photophysics and Photochemistry of Carotenoids in Vitro and in Light-harvesting Pigment-protein Complexes

The Photophysics and Photochemistry of Carotenoids in Vitro and in Light-harvesting Pigment-protein Complexes PDF Author: Ruel Zacarias B. Desamero
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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The Photophysics and Photochemistry of Carotenoids in Vitro and in Light-harvesting Pigment-protein Complexes

The Photophysics and Photochemistry of Carotenoids in Vitro and in Light-harvesting Pigment-protein Complexes PDF Author: Ruel Zacarias B. Desamero
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description


The Photophysics and Photochemistry of Carotenoids in Vitro and in Light-harvesting Pigment-protein Complexes

The Photophysics and Photochemistry of Carotenoids in Vitro and in Light-harvesting Pigment-protein Complexes PDF Author: Ruel Zacarias B. Desamero
Publisher:
ISBN:
Category :
Languages : en
Pages : 280

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Carotenoids in Photosynthesis

Carotenoids in Photosynthesis PDF Author: A. Young
Publisher: Springer Science & Business Media
ISBN: 9401121249
Category : Science
Languages : en
Pages : 508

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Book Description
Significant developments in recent years have led to a deeper understanding of the role and function of carotenoids in photosynthesis. For the first time the biological, biochemical, and chemical aspects of the role of these pigments in photosynthesis are brought together in one comprehensive reference volume. Chapters focus on the photochemistry of carotenoids in light harvesting and photoprotection, the nature and distribution of carotenoids in photosynthetic organisms, their biosynthesis, the herbicidal inhibition of carotenogenesis and the `xanthophyll cycle'. Throughout details are given of the various methodologies used. A detailed appendix provides physical data for the major compounds. Carotenoids in Photosynthesis is an invaluable reference source for all plant scientists.

Spectroscopy and Photophysics of Carotenoids in Solution and in Light-harvesting Pigment-protein Complexes

Spectroscopy and Photophysics of Carotenoids in Solution and in Light-harvesting Pigment-protein Complexes PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 468

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The Photochemistry of Carotenoids

The Photochemistry of Carotenoids PDF Author: H.A. Frank
Publisher: Springer Science & Business Media
ISBN: 0306482096
Category : Science
Languages : en
Pages : 406

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Book Description
Written by leading experts in the area of carotenoid research, this book gives a comprehensive overview of a various topics in the field. The contributions review the basic hypotheses about how carotenoids function and give details regarding testing different molecular models using state-of-the-art experimental methodologies.

Pigment—Protein Complexes in Plastids

Pigment—Protein Complexes in Plastids PDF Author: Christer Sundqvist
Publisher: Elsevier
ISBN: 1483272117
Category : Science
Languages : en
Pages : 537

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Book Description
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.

Carotenoids: Biological Functions of Carotenoids and Apocarotenoids in Natural and Artificial Systems

Carotenoids: Biological Functions of Carotenoids and Apocarotenoids in Natural and Artificial Systems PDF Author:
Publisher: Academic Press
ISBN: 0323913520
Category : Science
Languages : en
Pages : 566

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Book Description
Carotenoids: Biological Functions of Carotenoids and Apocarotenoids in Natural and Artificial Systems, Volume 674 in the Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting chapters on topics such as Ultrafast laser spectroscopic studies on carotenoids in solution and on those bound to photosynthetic pigment-protein complexes, Assessing photoprotective functions of carotenoids in photosynthetic systems of plants and green algae, Fluorescence of carotenoids: probing binding site interactions and conformational motion in carotenoproteins, Resonance Raman: A powerful tool to interrogate carotenoids in biological matrices, and much more. Other chapters in the book cover Engineering the carotenoid biosynthetic pathway to study the function of carotenoids in light-harvesting complexes, Carotenoids as proxies for variations in photosynthesis and phenology in response to environmental and climatic change, Apocarotenoid pigment biosynthesis in non-model plants, Apocarotenoid transport in plants, Screening for apocarotenoid plant growth regulators in Arabidopsis, Effects of herbivory on carotenoid biosynthesis and breakdown, Biosynthesis and action of apocarotenoid plant hormones, and much more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in Methods in Enzymology series Updated release includes the latest information on Carotenoids: Biological functions of carotenoids and apocarotenoids in natural and artificial systems

Evaluating the Nature of So-called S*-State Feature in Transient Absorption of Carotenoids in Light-harvesting Complex 2 (LH2) from Purple Photosynthetic Bacteria

Evaluating the Nature of So-called S*-State Feature in Transient Absorption of Carotenoids in Light-harvesting Complex 2 (LH2) from Purple Photosynthetic Bacteria PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9

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Book Description
Carotenoids are a class of natural pigments present in all phototrophic organisms, mainly in their light-harvesting proteins in which they play roles of accessory light absorbers and photoprotectors. Extensive time-resolved spectroscopic studies of these pigments have revealed unexpectedly complex photophysical properties, particularly for carotenoids in light-harvesting LH2 complexes from purple bacteria. An ambiguous, optically forbidden electronic excited state designated as S* has been postulated to be involved in carotenoid excitation relaxation and in an alternative carotenoid-to-bacteriochlorophyll energy transfer pathway, as well as being a precursor of the carotenoid triplet state. However, no definitive and satisfactory origin of the carotenoid S* state in these complexes has been established, despite a wide-ranging series of studies. Here, we resolve the ambiguous origin of the carotenoid S* state in LH2 complex from Rba. sphaeroides by showing that the S* feature can be seen as a combination of ground state absorption bleaching of the carotenoid pool converted to cations and the Stark spectrum of neighbor neutral carotenoids, induced by temporal electric field brought by the carotenoid cation- bacteriochlorophyll anion pair. Lastly, these findings remove the need to assign an S* state, and thereby significantly simplify the photochemistry of carotenoids in these photosynthetic antenna complexes.

Light Harvesting in Photosynthesis

Light Harvesting in Photosynthesis PDF Author: Roberta Croce
Publisher: CRC Press
ISBN: 1351242873
Category : Science
Languages : en
Pages : 793

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Book Description
This landmark collective work introduces the physical, chemical, and biological principles underlying photosynthesis: light absorption, excitation energy transfer, and charge separation. It begins with an introduction to properties of various pigments, and the pigment proteins in plant, algae, and bacterial systems. It addresses the underlying physics of light harvesting and key spectroscopic methods, including data analysis. It discusses assembly of the natural system, its energy transfer properties, and regulatory mechanisms. It also addresses light-harvesting in artificial systems and the impact of photosynthesis on our environment. The chapter authors are amongst the field’s world recognized experts. Chapters are divided into five main parts, the first focused on pigments, their properties and biosynthesis, and the second section looking at photosynthetic proteins, including light harvesting in higher plants, algae, cyanobacteria, and green bacteria. The third part turns to energy transfer and electron transport, discussing modeling approaches, quantum aspects, photoinduced electron transfer, and redox potential modulation, followed by a section on experimental spectroscopy in light harvesting research. The concluding final section includes chapters on artificial photosynthesis, with topics such as use of cyanobacteria and algae for sustainable energy production. Robert Croce is Head of the Biophysics Group and full professor in biophysics of photosynthesis/energy at Vrije Universiteit, Amsterdam. Rienk van Grondelle is full professor at Vrije Universiteit, Amsterdam. Herbert van Amerongen is full professor of biophysics in the Department of Agrotechnology and Food Sciences at Wageningen University, where he is also director of the MicroSpectroscopy Research Facility. Ivo van Stokkum is associate professor in the Department of Physics and Astronomy, Faculty of Sciences, at Vrije Universiteit, Amsterdam.

Regulation of Photosynthesis

Regulation of Photosynthesis PDF Author: Eva-Mari Aro
Publisher: Springer Science & Business Media
ISBN: 0306481480
Category : Science
Languages : en
Pages : 624

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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.