Q-band hyperchromism and B-band hypochromism of bacteriochlorophyll c as a tool for investigation of the oligomeric structure of chlorosomes of the green photosynthetic bacterium Chloroflexus aurantiacus.

abstract：:In this brief report, we provide a pictorial essay on an international conference "Photosynthesis Research for Sustainability-2013 in honor of Jalal A. Aliyev" that was held in Baku, Azerbaijan, during June 5-9, 2013 ( http://photosynthesis2013.cellreg.org/ ). We begin this report with a brief note on Jalal Aliyev, th...

journal_title：Photosynthesis research

authors： Allakhverdiev SI,Huseynova IM,Govindjee

更新日期：2013-12-01 00:00:00

abstract：:Photosystem II (PSII) catalyzes the oxidation of water to O2 at the manganese-containing, oxygen-evolving complex (OEC). Photoexcitation of PSII results in the oxidation of the OEC; four sequential oxidation reactions are required for the generation and release of molecular oxygen. Therefore, with flash illumination, ...

journal_title：Photosynthesis research

authors： Cooper IB,Barry BA

更新日期：2007-06-01 00:00:00

abstract：:In this Minireview, we discuss a number of issues on the primary photosynthetic reactions of the green plant Photosystem II. We discuss the origin of the 683 and 679 nm absorption bands of the PS II RC complex and suggest that these forms may reflect the single-site spectrum with dominant contributions from the zero-p...

journal_title：Photosynthesis research

authors： Dekker JP,Van Grondelle R

更新日期：2000-01-01 00:00:00

abstract：:In thylakoid membranes, several peptides of high MW† are present which may interfere with the study of CP1's components. Modifying Cleveland's technique [7] for limited proteolysis, we have characterized the polypeptides found in the 60 kD region. Some may result from incomplete washing of the CF1 while others come fr...

journal_title：Photosynthesis research

authors： Lagoutte B,Setif P,Duranton J

更新日期：1980-03-01 00:00:00

abstract：:This article provides a glimpse into the dawning of research on chlorophyll-protein complexes and a brief recollection of the path that led us to the identification of the photosystem II reaction center, i.e., the polypeptides that carry the site of primary charge separation in oxygenic photosynthesis. A preliminary v...

journal_title：Photosynthesis research

authors： Satoh K

更新日期：2008-10-01 00:00:00

abstract：:A proton electrochemical potential across the membranes of photosynthetic purple bacteria is established by a light-driven proton pump mechanism: the absorbed light in the reaction center initiates electron transfer which is coupled to the vectorial displacement of protons from the cytoplasm to the periplasm. The stoi...

journal_title：Photosynthesis research

authors： Maróti P

更新日期：1993-07-01 00:00:00

abstract：:This contribution gives a brief survey of the short history since the discovery of the aerobic phototrophic bacteria to focus on a general evolutionary scenario. Most of the citations are of reviews that have covered the earlier literature and to which the reader is directed at appropriate places in the following text...

journal_title：Photosynthesis research

authors： Beatty JT

更新日期：2002-01-01 00:00:00

abstract：:This article summarizes knowledge on genes and their respective proteins in the field of green algal hydrogen research. Emphasis is placed on recently cloned genes from the unicellular green alga Chlamydomonas reinhardtii, including HydA1 and HydA2, which encode homologous [Fe]-hydrogenases, Tla1, which encodes a chlo...

journal_title：Photosynthesis research

authors： Melis A,Seibert M,Happe T

更新日期：2004-01-01 00:00:00

abstract：:Marine macroalgae possess a range of mechanisms to increase the availability of CO2 for fixation by ribulose-1,5-bisphosphate carboxylase/oxygenase. Of these, possession of a periplasmic or external carbonic anhydrase and the ability to use bicarbonate ions is widely distributed. The mechanisms of carbon acquisition w...

journal_title：Photosynthesis research

authors： Ruiz-Nieto M,Fernández JA,Niell FX,Carmona R

更新日期：2014-09-01 00:00:00

abstract：:In recent years the enzymes of the C3 photosynthetic carbon reduction (PCR) cycle have been studied using the techniques of molecular biology. In this review we discuss the primary protein sequences and structural predictions that have been made for a number of these enzymes, which, with the input of crystallographic ...

journal_title：Photosynthesis research

authors： Raines CA,Lloyd JC,Dyer TA

更新日期：1991-01-01 00:00:00

abstract：:The picture presently emerging from studies on the mechanism of photosystem II electron transport is discussed. The reactions involved in excitation trapping, charge separation and stabilization of the charge pair in the reaction center, followed by the reactions with the substrates, plastoquinone reduction and water ...

journal_title：Photosynthesis research

authors： Van Gorkom HJ

更新日期：1985-01-01 00:00:00

abstract：:Moderately high temperature reduces photosynthetic capacities of leaves with large effects on thylakoid reactions of photosynthesis, including xanthophyll conversion in the lipid phase of the thylakoid membrane. In previous studies, we have found that leaf temperature of 40°C increased zeaxanthin accumulation in dark-...

journal_title：Photosynthesis research

authors： Zhang R,Kramer DM,Cruz JA,Struck KR,Sharkey TD

更新日期：2011-09-01 00:00:00

abstract：:It is already well established that the high-frequency intramolecular vibrations are responsible for many observed dynamic phenomena in linear and nonlinear electronic spectroscopy such as the spectral lineshape formation, the transition dipole moment, the lifetime borrowing, and vibrational and mixed coherence beats....

journal_title：Photosynthesis research

authors： Bašinskaitė E,Butkus V,Abramavicius D,Valkunas L

更新日期：2014-07-01 00:00:00

abstract：:The world is facing energy crisis and environmental issues due to the depletion of fossil fuels and increasing CO2 concentration in the atmosphere. Growing microalgae can contribute to practical solutions for these global problems because they can harvest solar energy and capture CO2 by converting it into biofuel usin...

journal_title：Photosynthesis research

authors： Razeghifard R

更新日期：2013-11-01 00:00:00

abstract：:Various techniques of electron microscopy (EM) such as ultrathin sectioning, freeze-fracturing, freeze-etching, negative staining and (cryo-)electron crystallography of two-dimensional crystals have been employed, since now, to obtain much of the structural information of the Photosystem II (PS II) pigment-protein com...

journal_title：Photosynthesis research

authors： Bumba L,Vácha FE

更新日期：2003-01-01 00:00:00

abstract：:A time line of important research relating to anoxygenic photosynthetic organisms is presented. The time line includes discoveries of organisms, metabolic capabilities, molecular complexes and genetic systems. It also pinpoints important milestones in our understanding of the structure, function, organization, assembl...

journal_title：Photosynthesis research

authors： Gest H,Blankenship RE

更新日期：2004-01-01 00:00:00

abstract：:The main objective of the present review is to provide a compilation of published data of the effects of several climatic conditions on Rubisco, particularly its activity, state of activation, and concentration, and its influence on leaf gas exchange and photosynthesis. The environmental conditions analyzed include dr...

journal_title：Photosynthesis research

authors： Galmés J,Aranjuelo I,Medrano H,Flexas J

更新日期：2013-11-01 00:00:00

abstract：:Chlorophyll (Chl) is an essential component of the photosynthetic apparatus. Embedded into Chl-binding proteins, Chl molecules play a central role in light harvesting and charge separation within the photosystems. It is critical for the photosynthetic cell to not only ensure the synthesis of a sufficient amount of new...

journal_title：Photosynthesis research

authors： Sobotka R

更新日期：2014-02-01 00:00:00

abstract：:The photosynthetic green sulfur bacterium Chlorobaculum (Cba.) tepidum produces bacteriochlorophyll (BChl) c pigments bearing a chiral 1-hydroxyethyl group at the 3-position, which self-aggregate to construct main light-harvesting antenna complexes, chlorosomes. The secondary alcoholic hydroxy group is requisite for c...

journal_title：Photosynthesis research

authors： Teramura M,Harada J,Tamiaki H

更新日期：2016-12-01 00:00:00

abstract：:A synthetic fluorochromous lipid, rhodaminyl triglyceride (rhodaminyl TG), was intercalated into isolated thylakoid membranes of chloroplasts up to 30 molecules per 100 molecules of chlorophyll. As a result of fluorochrome presence, an absorption band appeared in a yellow-green spectrum region, its intensity being com...

journal_title：Photosynthesis research

authors： Sorokin EM,Bobylyev GS,Molotkovsky YG

更新日期：1990-11-01 00:00:00

abstract：:Recommendations are given for naming of genes coding for reaction center, antenna and electron transport proteins in green photosynthetic bacteria and heliobacteria. ...

journal_title：Photosynthesis research

authors： Bryant DA

更新日期：1994-07-01 00:00:00

abstract：:Several models have been proposed to interpret the mechanism of proton-pumping associated with the electron transfer reactions in the cytochrome b/f complex. Energetics considerations suggest that the proton pump is coupled to the oxidation of cytochrome b by plastoquinone. Experiments performed in living cells under ...

journal_title：Photosynthesis research

authors： Joliot P,Joliot A

更新日期：1986-01-01 00:00:00

abstract：:Glycolate oxidase (GO; EC 1.1.3.1) was purified from the leaves of three plant species:Amaranthus hypochondriacus L.(NAD-ME type C4 dicot),Pisum sativum L. (C3 species) andParthenium hysterophorus L. (C3-C4. intermediate). A flavin moiety was present in the enzyme from all the three species. The enzyme from the C4 pla...

journal_title：Photosynthesis research

authors： Devi MT,Rajagopalan AV,Raghavendara AS

更新日期：1996-03-01 00:00:00

abstract：:Almost 1 year has passed since the death of Wolfgang Haehnel on 13.5.2013, after a long fight against cancer. With his death, the photosynthesis community has lost an excellent scientist, a critical peer, and a stimulating sparring partner in discussions: I also lost a good friend. ...

journal_title：Photosynthesis research

authors： Scheer H

更新日期：2014-06-01 00:00:00

abstract：:The pigment composition of the light-harvesting complexes of Photosystem II (LHC II) has been determined for lettuce (Lactuca sativa). In common with other members of the composite, the photosynthetic tissues of this species may contain large amounts of the carotenoid lactucaxanthin (ε, ε-carotene-3,3'-diol) in additi...

journal_title：Photosynthesis research

authors： Phillip D,Young AJ

更新日期：1995-03-01 00:00:00

abstract：:The excitation energy transfer between carotenoid and chlorophyll (Chl) in the cytochrome b ( 6 ) f complex from Bryopsis corticulans (B. corticulans), in which the carotenoid is 9-cis-alpha-carotene, was investigated by means of fluorescence excitation and sub-microsecond time-resolved absorption spectroscopies. The ...

journal_title：Photosynthesis research

authors： Li BX,Zuo P,Chen XB,Li LB,Zhang JP,Zhang JP,Kuang TY

更新日期：2006-04-01 00:00:00

abstract：:For maximal rates of CO2 assimilation in isolated intact spinach chloroplasts the generation of the adequate NADPH/ATP ratio is achieved either by cyclic electron flow around photosystem I or by linear electron transport to oxaloacetate, nitrite or oxygen (Mehler-reaction). The interrelationships between these poising...

journal_title：Photosynthesis research

authors： Backhausen JE,Kitzmann C,Scheibe R

更新日期：1994-10-01 00:00:00

abstract：:In plants, chlorophylls (chlorophyll a and chlorophyll b) are the most abundant tetrapyrrole molecules and are essential for photosynthesis. The first committed step of chlorophyll biosynthesis is the insertion of Mg(2+) into protoporphyrin IX, and thus subsequent steps of the biosynthesis are called the Mg branch. As...

journal_title：Photosynthesis research

authors： Masuda T

更新日期：2008-05-01 00:00:00

abstract：:Quantum mechanics/molecular mechanics (QM/MM) hybrid methods are currently the most powerful computational tools for studies of structure/function relations and structural refinement of macrobiomolecules (e.g., proteins and nucleic acids). These methods are highly efficient, since they implement quantum chemistry tech...

journal_title：Photosynthesis research

authors： Sproviero EM,Newcomer MB,Gascón JA,Batista ER,Brudvig GW,Batista VS

更新日期：2009-11-01 00:00:00

abstract：:The genome of the purple non-sulphur photosynthetic bacterium Rhodopseudomonas acidophila has been found to contain multiple copies of puc light-harvesting (LH2) peripheral antenna complex genes. Three wild-type isolates each exhibiting dissimilar peripheral antenna complex phenotypes in response to growth at reduced ...

journal_title：Photosynthesis research

authors： Gardiner AT,Mackenzie RC,Barrett SJ,Kaiser K,Cogdell RJ

更新日期：1996-09-01 00:00:00