Mimicking the electron donor side of Photosystem II in artificial photosynthesis.

abstract：:The chlorina-f2 mutant of barley (Hordeum vulgare L.) contains no chlorophyll b in its light-harvesting antenna, whereas the chlorina-103 mutant contains approximately 10% of the chlorophyll b found in wild-type. The absolute chlorophyll antenna size for Photosystem-II in wild-type, chlorina-103 and chlorina-f2 mutant...

journal_title：Photosynthesis research

authors： Harrison MA,Nemson JA,Melis A

更新日期：1993-11-01 00:00:00

abstract：:The relationship between the redox state of P700, the primary donor of PS I, monitored using absorbance changes at 830 nm and photochemical energy storage in PS I reaction centers assayed with the photoacoustic method (PA) was studied in isolated PS I submembrane particles aspirated onto nitrocellulose filters. Severa...

journal_title：Photosynthesis research

authors： Bukhov NG,Rajagopal S,Carpentier R

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：:The protonophoric uncouplers carbonyl cyanide m-chlorophenylhydrazone (CCCP), 2,3,4,5,6-pentachlorophenol (PCP) and 4,5,6,7-tetrachloro-2-trifluoromethylbenzimidazole (TTFB) inhibited the Hill reaction with K3[Fe(CN)6] (but not with SiMo) in chloroplast and cyanobacterial membranes (the I50 values were approx. 1-2, 4-...

journal_title：Photosynthesis research

authors： Samuilov VD,Renger G,Paschenko VZ,Oleskin AV,Gusev MV,Gubanova ON,Vasil'ev SS,Barsky EL

更新日期：1995-01-01 00:00:00

abstract：:The chloroplast ATP synthase synthesizes ATP from ADP and free phosphate coupled by the electrochemical potential across the thylakoid membrane in the light. The light-dependent regulation of ATP synthase activity is carried out in part through redox modulation of a cysteine disulfide bridge in CF1 gamma-subunit. In o...

journal_title：Photosynthesis research

authors： Wu G,Ort DR

更新日期：2008-08-01 00:00:00

abstract：:The afterglow (AG) band of thermoluminescence (TL) has been investigated in leaves of Arabidopsis thaliana. Excitation of dark-adapted leaves with two saturating single turn-over flashes induced the appearance of a complex TL glow curve that could be well simulated by three components: the two components, B1 and B2, o...

journal_title：Photosynthesis research

authors： Roncel M,Ortega JM

更新日期：2005-06-01 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

abstract：:The dependence on temperature of tryptophan fluorescence lifetime in trimeric photosystem I (PSI) complexes from cyanobacteria Synechocystis sp. PCC 6803 during the heating of pre-frozen to - 180 °C in the dark or in the light-activated preparations has been studied. Fluorescence lifetime in samples frozen in the ligh...

journal_title：Photosynthesis research

authors： Knox PP,Korvatovskiy BN,Gorokhov VV,Goryachev SN,Mamedov MD,Paschenko VZ

更新日期：2019-03-01 00:00:00

abstract：:A chloroplast preparation was extracted from squash (Cucurbita pepo (L.) var. Senator). Enrichment of intact chloroplasts was achieved by continuous free-flow electrophoresis. The addition of monoterpenes, detergent and free fatty acids changed the elecrophoretic separation pattern characteristically. Monoterpene-depe...

journal_title：Photosynthesis research

authors： Klingler H,Frosch S,Wagner E

更新日期：1991-06-01 00:00:00

abstract：:A protein was isolated from membranes of the green sulfur bacterium Chlorobium tepidum. This protein was characterized by gel electrophoresis, gel filtration, analytical ultracentrifugation and amino acid sequencing. The molecular weight of the purified protein was shown to be 26 kDa by SDS-PAGE. HPLC gelfiltration, S...

journal_title：Photosynthesis research

authors： Aivaliotis M,Neofotistou E,Rémigy HW,Tsimpinos G,Lustig A,Lottspeich F,Tsiotis G

更新日期：2004-02-01 00:00:00

abstract：:Photosynthetic electron transfer has been examined in whole cells, isolated membranes and in partially purified reaction centers (RCs) of Roseicyclus mahoneyensis, strain ML6 and Porphyrobacter meromictius, strain ML31, two species of obligate aerobic anoxygenic phototrophic bacteria. Photochemical activity in strain ...

journal_title：Photosynthesis research

authors： Rathgeber C,Alric J,Hughes E,Verméglio A,Yurkov V

更新日期：2012-02-01 00:00:00

abstract：:Chlorosomes, the light-harvesting apparatus of green bacteria, are a unique antenna system, in which pigments are organized in aggregates rather than associated with proteins. Isolated chlorosomes from the green sulphur bacterium Chlorobium tepidum contain 10 surface-exposed proteins. Treatment of chlorosomes from Chl...

journal_title：Photosynthesis research

authors： Milks KJ,Danielsen M,Persson S,Jensen ON,Cox RP,Miller M

更新日期：2005-11-01 00:00:00

abstract：:Nonlinear optical responses of bacteriochlorophyll a (BChl a) were investigated by means of the three-pulse four-wave mixing (FWM) technique under the resonant excitation into the Q ( y ) band. The experimental results are explained by a theoretical model calculation including the Brownian oscillation mode of the solv...

journal_title：Photosynthesis research

authors： Sugisaki M,Fujii R,Cogdell RJ,Hashimoto H

更新日期：2008-02-01 00:00:00

abstract：:The effect of temperatures between 15 and 50°C on the light utilization efficiency of leaf net photosynthesis was studied in two C4 grasses and two C3 legumes. In the legumes, light utilization efficiency (μ mol of CO2 fixed per μ Einstein of incident photosynthetic quantum flux) declined linearly with temperature bet...

journal_title：Photosynthesis research

authors： Ludlow MM

更新日期：1981-12-01 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：:The 3- and 7-formyl groups of chlorophyll-d (Chl-d) and bacteriochlorophyll-e (BChl-e), respectively, were regioselectively labeled with an isotopically stable oxygen-18 (¹⁸O) atom to give 3¹-¹⁸O-labeled Chl-d and 7¹-¹⁸O-labeled BChl-e (ca. 90% ¹⁸O) by exchanging the carbonyl oxygen atoms in the presence of acidic H₂ ...

journal_title：Photosynthesis research

authors： Morishita H,Mizoguchi T,Tamiaki H

更新日期：2010-09-01 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：:A comparative study of photosystem II complexes isolated from tobacco (Nicotiana tabacum L. cv. John William's Broadleaf) which contains normal stacked thylakoid membranes, and from two chlorophyll deficient tobacco mutants (Su/su and Su/su var. Aurea) which have low stacked grana or essentially unstacked thylakoids w...

journal_title：Photosynthesis research

authors： Specht S,Pistorius EK,Schmid GH

更新日期：1987-01-01 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 concise review describes the current status of research into how carotenoids function in bacterial photosynthesis. This is illustrated by reference to very recent studies on both the photoprotective and antenna functions of carotenoids. The major remaining open questions on the detailed molecular mechanisms invol...

journal_title：Photosynthesis research

authors： Fraser NJ,Hashimoto H,Cogdell RJ

更新日期：2001-01-01 00:00:00

abstract：:Alternative electron sinks are an important regulatory mechanism to dissipate excessively absorbed light energy particularly under fast changing dynamic light conditions. In diatoms, the cyclic electron transport (CET) around Photosystem II (PS II) is an alternative electron transport pathway (AET) that contributes to...

journal_title：Photosynthesis research

authors： Wagner H,Jakob T,Lavaud J,Wilhelm C

更新日期：2016-05-01 00:00:00

abstract：:This article gives an historical overview of our group's research on various metabolite translocators of chloroplasts, such as the translocators for phosphorylated intermediates of the Calvin-Benson cycle and of glycolysis, of ADP and ATP, of dicarboxylates, of pyruvate and of hexoses; how it began and where it led to...

journal_title：Photosynthesis research

authors： Heldt HW

更新日期：2002-01-01 00:00:00

abstract：:The post-translational modification consisting in the formation/reduction of disulfide bonds has been the subject of intense research in plants since the discovery in the 1970s that many chloroplastic enzymes are regulated by light through dithiol-disulfide exchange reactions catalyzed by oxidoreductases called thiore...

journal_title：Photosynthesis research

authors： Chibani K,Couturier J,Selles B,Jacquot JP,Rouhier N

更新日期：2010-04-01 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：:Chlorophyll (Chl) b serves an essential function in accumulation of light-harvesting complexes (LHCs) in plants. In this article, this role of Chl b is explored by considering the properties of Chls and the ligands with which they interact in the complexes. The overall properties of the Chls, not only their spectral f...

journal_title：Photosynthesis research

authors： Hoober JK,Eggink LL,Chen M

更新日期：2007-11-01 00:00:00

abstract：:The potential role of foliar carbon export features in the acclimation of photosynthetic capacity to differences and changes in light environment was evaluated. These features included apoplastic vs. symplastic phloem loading, density of loading veins, plasmodesmatal frequency in intermediary cells, and the ratio of l...

journal_title：Photosynthesis research

authors： Adams WW 3rd,Watson AM,Mueh KE,Amiard V,Turgeon R,Ebbert V,Logan BA,Combs AF,Demmig-Adams B

更新日期：2007-11-01 00:00:00

abstract：:After a brief prologue on Otto Kandler's life, we describe briefly his pioneering work on photosynthesis (photophosphorylation and the carbon cycle) and his key participation in the discovery of the concept of three forms of life (Archaea, Prokarya, and Eukarya). With Otto Kandler's passing, both the international pho...

journal_title：Photosynthesis research

authors： Govindjee,Tanner W

更新日期：2018-09-01 00:00:00

abstract：:Prior to the 1960s, the model for the molecular structure of cell membranes consisted of a lipid bilayer held in place by a thin film of electrostatically-associated protein stretched over the bilayer surface: (the Danielli-Davson-Robertson "unit membrane" model). Andrew Benson, an expert in the lipids of chloroplast ...

journal_title：Photosynthesis research

authors： Anderson JM

更新日期：2007-05-01 00:00:00

abstract：:Illumination of the dark-incubated cells of Synechocystis PCC6803 caused recovery of both respiratory activity of oxygen uptake and PS I-cyclic electron flow, which was monitored by the dark reduction of P700(+) in the presence of DCMU after a 50 ms pulse light (MT) under background far-red light, but the effects were...

journal_title：Photosynthesis research

authors： Mi H,Deng Y,Tanaka Y,Hibino T,Takabe T

更新日期：2001-01-01 00:00:00

abstract：:Relationships between induced high leaf intercellular CO₂ concentrations, leaf K⁺ and NO₃⁻ ion movement and early fruit formation under macronutrient limitation are not well understood. We examined the effects and interactions of reduced K/N input treatments on leaf intercellular CO₂, photosynthesis rate, carboxylatio...

journal_title：Photosynthesis research

authors： Li H,Li T,Fu G,Katulanda P

更新日期：2013-07-01 00:00:00