A hydrogen-atom abstraction model for the function of YZ in photosynthetic oxygen evolution.

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：:A hypothesis is proposed to explain the function of Cl(-) in activating the oxygenevolving complex (OEC) of photosystem II (PS II), based on the results of recent (35)Cl-NMR studies. The putative mechanism involves Cl(-) binding to two types of sites. An intrinsic site is suggested to be composed of three histidyl res...

journal_title：Photosynthesis research

authors： Coleman WJ,Govindjee

更新日期：1987-09-01 00:00:00

abstract：:Chloroplasts of a chlorophyll (Chl) b-less barley mutant were solubilized with digitonin and fractionated by polyacrylamide gel electrophoresis with sodium deoxycholate in the running buffer. By this procedure, in contrast to using sodium dodecylsulfate (SDS) for solubilization, a Chl a-protein analogous to the major ...

journal_title：Photosynthesis research

authors： Duranton J,Brown J

更新日期：1987-01-01 00:00:00

abstract：:Light activation of phosphoenolpyruvate carboxylase from the leaves of the C4 plant Setaria verticillata (L.) is more pronounced at low CO2 levels. The 2-fold activation observed at physiological ambient CO2 becomes 3.64-fold at 5 μL/L and completely abolished above 700 μL/L. When the stomata close under the influence...

journal_title：Photosynthesis research

authors： Samaras Y,Manetas Y

更新日期：1988-11-01 00:00:00

abstract：:In appreciation of his contribution to the Photosystsem II research and commemoration of the book Photosystem II: The Light-Driven Water-Plastoquinone Oxido-Reductase, co-edited with Kimiyuki Satoh, I present here some of my recollections of Thomas John Wydrzynski and by several others with whom he has associated over...

journal_title：Photosynthesis research

authors： Govindjee

更新日期：2008-10-01 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：:A non-competitive enzyme-linked immunosorbent assay (ELISA) which enables detection of as little as 0.1 ng cytochrome f in leaf extracts has been developed. No evidence for specific or non-specific interference by proteins other than cytochrome f was found. The assay was applied to a comparative study of age-related c...

journal_title：Photosynthesis research

authors： Davies TG,Thomas H,Rogers LJ

更新日期：1990-04-01 00:00:00

abstract：:While interest in photosynthetic thermal acclimation has been stimulated by climate warming, comparing results across studies requires consistent terminology. We identify five types of photosynthetic adjustments in warming experiments: photosynthesis as measured at the high growth temperature, the growth temperature, ...

journal_title：Photosynthesis research

authors： Way DA,Yamori W

更新日期：2014-02-01 00:00:00

abstract：:Most chloroplasts undergo changes in composition, function and structure in response to growth irradiance. However, Tradescantia albiflora, a facultative shade plant, is unable to modulate its light-harvesting components and has the same Chl a/Chl b ratios and number of functional PS II and PS I reaction centres on a ...

journal_title：Photosynthesis research

authors： Anderson JM,Soon Chow W,Park YI,Franklin LA,Robinson SP,van Hasselt PR

更新日期：2001-01-01 00:00:00

abstract：:Photosynthetic acclimation varies among species, which likely reveals variations at the biochemical level in the pathways that constitute carbon assimilation and energy transfer. Local adaptation and phenotypic plasticity affect the environmental response of photosynthesis. Phenotypic plasticity allows for a wide arra...

journal_title：Photosynthesis research

authors： Cavanagh AP,Kubien DS

更新日期：2014-02-01 00:00:00

abstract：:Biohybrid light-harvesting architectures can be constructed that employ native-like bacterial photosynthetic antenna peptides as a scaffold to which synthetic chromophores are attached to augment overall spectral coverage. Synthetic bacteriochlorins are attractive to enhance capture of solar radiation in the photon-ri...

journal_title：Photosynthesis research

authors： Jiang J,Reddy KR,Pavan MP,Lubian E,Harris MA,Jiao J,Niedzwiedzki DM,Kirmaier C,Parkes-Loach PS,Loach PA,Bocian DF,Holten D,Lindsey JS

更新日期：2014-11-01 00:00:00

abstract：:The effects of root applications of kinetin, gibberellic acid (GA3) and indoleacetic acid (IAA) on photosynthesis was measured using an open infrared CO2 gas-exchange system. There was a 30-35% increase in the photosynthetic rates (mg CO2/dm(2)/hr) of attached leaves within 8 hr following root treatment with 0.47 μM k...

journal_title：Photosynthesis research

authors： Dong CN,Arteca RN

更新日期：1982-01-01 00:00:00

abstract：:This review describes the progress in our understanding of the structure of the Mn complex in Photosystem II over the last two decades. Emphasis is on the research from our laboratory, especially the results from X-ray absorption spectroscopy, low temperature electron paramagnetic resonance and electron spin echo enve...

journal_title：Photosynthesis research

authors： Klein MP,Sauer K,Yachandra VK

更新日期：1993-01-01 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：:The availability of a complete genome database for the cyanobacterium Synechocystis sp. PCC6803 (glucose-tolerant strain) has raised expectations that this organism would become a reference strain for work aimed at understanding the CO(2)-concentrating mechanism (CCM) in cyanobacteria. However, the amount of physiolog...

journal_title：Photosynthesis research

authors： Benschop JJ,Badger MR,Dean Price G

更新日期：2003-01-01 00:00:00

abstract：:A high CO2-requiring mutant of Synechocystis PCC6803 (G3) capable of Ci transport but unable to utilize the intracellular Ci pool for photosynthesis was constructed. A DNA clone of 6.1 kbp that transforms the G3 mutant to the wild-type phenotype was isolated from a Synechocystis PCC6803 genomic library. Complementatio...

journal_title：Photosynthesis research

authors： Ogawa T,Amichay D,Gurevitz M

更新日期：1994-02-01 00:00:00

abstract：:Oxygenic photosynthesis is driven by two multi-subunit membrane protein complexes, Photosystem I and Photosystem II. In plants and green algae, both complexes are composed of two moieties: a reaction center (RC), where light-induced charge translocation occurs, and a peripheral antenna that absorbs light and funnels i...

journal_title：Photosynthesis research

authors： Ben-Shem A,Frolow F,Nelson N

更新日期：2004-01-01 00:00:00

abstract：:When excited by ultraviolet radiation, leaves of a great number of species of higher plants exhibit emission of blue fluorescence, comparable in intensity to the red emission of chlorophyll. The fluorescence decay of the blue emission of spinach leaves recorded by single photon counting techniques is decomposed into e...

journal_title：Photosynthesis research

authors： Goulas Y,Moya I,Schmuck G

更新日期：1990-09-01 00:00:00

abstract：:This minireview summarizes the current state of knowledge concerning the role of Cl(-) in the oxygen-evolving complex (OEC) of photosystem II (PSII). The model that proposes that Cl(-) is a Mn ligand is discussed in light of more recent work. Studies of Cl(-) specificity, stoichiometry, kinetics, and retention by extr...

journal_title：Photosynthesis research

authors： Popelková H,Yocum CF

更新日期：2007-07-01 00:00:00

abstract：:To investigate the impact of iron deficiency on bioenergetic pathways in Chlamydomonas, we compared growth rates, iron content, and photosynthetic parameters systematically in acetate versus CO(2)-grown cells. Acetate-grown cells have, predictably (2-fold) greater abundance of respiration components but also, counter-...

journal_title：Photosynthesis research

authors： Terauchi AM,Peers G,Kobayashi MC,Niyogi KK,Merchant SS

更新日期：2010-07-01 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 work addresses the question of occurrence and function of photosystem II (PSII) in bundle sheath (BS) cells of leaves possessing NADP-malic enzyme-type C4 photosynthesis (Zea mays). Although no requirement for PSII activity in the BS has been established, several component proteins of PSII have been detected in B...

journal_title：Photosynthesis research

authors： Peterson RB,Oja V,Eichelmann H,Bichele I,Dall'Osto L,Laisk A

更新日期：2014-10-01 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：:Effect of water-soluble and stable sucrose-bound iron oxyhydroxide nanoparticles [Fe[III] sucrose complex (FSC)] on the efficiency of electron transport in the photosystem II membranes was studied. FSC significantly increases (by a factor 1.5) the rate of light-induced oxygen evolution in the presence of alternative e...

journal_title：Photosynthesis research

authors： Semin BК,Davletshina LN,Rubin AB

更新日期：2019-10-01 00:00:00

abstract：:The early suggestion by Lozier and Butler (Photochem. Photobiol. 17, 133-137 (1973)) that EPR Signal II arises from radicals associated with the water-splitting process in PSII has been confirmed and extended over the intervening years. Recent work has identified the Signal II radicals, [Formula: see text] and [Formul...

journal_title：Photosynthesis research

authors： Chandrashekar TK,O'malley PJ,Rodriguez I,Babcock GT

更新日期：1986-01-01 00:00:00

abstract：:It has been known for some time that bicarbonate reverses the inhibition, by formate under HCO3 (-)-depletion conditions, of electron transport in thylakoid membranes. It has been shown that the major effect is on the electron acceptor side of photosystem II, at the site of plastoquinone reduction. After presenting a ...

journal_title：Photosynthesis research

authors： Blubaugh DJ,Govindjee

更新日期：1988-01-01 00:00:00

abstract：:Temperature response of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) catalytic properties directly determines the CO2 assimilation capacity of photosynthetic organisms as well as their survival in environments with different thermal conditions. Despite unquestionable importance of Rubisco, the comprehensi...

journal_title：Photosynthesis research

authors： Galmés J,Kapralov MV,Copolovici LO,Hermida-Carrera C,Niinemets Ü

更新日期：2015-02-01 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：:Regulation of photosynthetic electron transport at different levels of structural and functional organization of photosynthetic apparatus provides efficient performance of oxygenic photosynthesis in plants. This review begins with a brief overview of the chloroplast electron transport chain. Then two noninvasive bioph...

journal_title：Photosynthesis research

authors： Tikhonov AN

更新日期：2015-08-01 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