Regulation of C4-phosphoenolpyruvate carboxylase activity by ambient CO2.

abstract：:A pigment system containing carotenoids and oxidised reaction centre pigments is present in chromatophores of Rhodospirillum rubrum and this pigment system may cause fluorescence quenching when a still unidentified chromatophore component is in its oxidised state. Besides by its action spectrum, this pigment system is...

journal_title：Photosynthesis research

authors： Goedheer JC

更新日期：1984-03-01 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：:The localization of isoprenoid lipids in chloroplasts, the accumulation of particular isoprenoids under high irradiance conditions, and channelling of photosynthetically fixed carbon into plastidic thylakoid isoprenoids, volatile isoprenoids, and cytosolic sterols are reviewed. During leaf and chloroplast development ...

journal_title：Photosynthesis research

authors： Lichtenthaler HK

更新日期：2007-05-01 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：:Previous investigations have shown that increased source strength as a result of elevated CO(2) can alter the timing of the phases of change that occur in photosynthetic rates during dicot leaf ontogeny [Miller et al. (1997) Plant Physiol 115: 1195-1200]. To evaluate the converse situation of decreased source strength...

journal_title：Photosynthesis research

authors： Miller A,Schlagnhaufer C,Spalding M,Rodermel S

更新日期：2000-01-01 00:00:00

abstract：:Oxygenic photosynthesis requires chlorophyll (Chl) for the absorption of light energy, and charge separation in the reaction center of photosystem I and II, to feed electrons into the photosynthetic electron transfer chain. Chl is bound to different Chl-binding proteins assembled in the core complexes of the two photo...

journal_title：Photosynthesis research

authors： Wang P,Grimm B

更新日期：2015-12-01 00:00:00

abstract：:The Photosystem I reaction centre protein CP1, isolated from barley using polyacrylamide gel electrophoresis showed an EPR (Electron Paramgnetic Resonance) spectrum with the polarisation pattern AEEAAE, typical of the primary donor triplet state (3)P700, created via radical pair formation and recombination. (3)P700 co...

journal_title：Photosynthesis research

authors： Searle GF,Schaafsma TJ

更新日期：1992-06-01 00:00:00

abstract：:This study was conducted to more clearly define the physiological effects of PS II herbicides on chloroplast thylakoid membrane activity and composition. Barley (Hordeum vulgare L. cv Boone) was grown in hydroponic culture at 20°C in a growth chamber with a light intensity of 500 μmole photons m(-2) s(-1). Atrazine (2...

journal_title：Photosynthesis research

authors： De la Torre WR,Burkey KO

更新日期：1992-04-01 00:00:00

abstract：:Green sulfur bacteria and heliobacteria are strictly anaerobic phototrophs that have homodimeric type 1 reaction center complexes. Within these complexes, highly reducing substances are produced through an initial charge separation followed by electron transfer reactions driven by light energy absorption. In order to ...

journal_title：Photosynthesis research

authors： Azai C,Tsukatani Y,Itoh S,Oh-oka H

更新日期：2010-06-01 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：:A study of the absorption and fluorescence characteristics of the D1/D2/cytb-559 reaction centre complex of Photosystem II has been carried out by gaussian decomposition of absorption spectra both at room temperature and 72 K and of the room temperature fluorescence spectrum. A five component fit was found in which th...

journal_title：Photosynthesis research

authors： Garlaschi FM,Zucchelli G,Giavazzi P,Jennings RC

更新日期：1994-09-01 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：:Currently, relatively few proteomics studies of chloroplast have been published, but the field has just started emerging and is likely to develop more rapidly in the future. While the complex membrane structure of the chloroplast makes it difficult to study its entire proteome by global approaches, proteomics has cons...

journal_title：Photosynthesis research

authors： Schröder WP,Kieselbach T

更新日期：2003-01-01 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：:The study of the light-harvesting complex II (LHC-II) phosphatase activity has been difficult due to the membrane association of its substrate. Thylakoid membranes labeled with [γ-(32)P]ATP were incubated with chymotrypsin, releasing phosphopeptides which served as labeled substrates for LHC-II phosphatase. Utilizing ...

journal_title：Photosynthesis research

authors： Hammer MF,Sarath G,Osterman JC,Markwell J

更新日期：1995-05-01 00:00:00

abstract：:Upon a sudden transition from high to low light, the rate of CO2 assimilation (AN) in some plants first decreases to a low level before gradually becoming stable. However, the underlying mechanisms remain controversial. The activity of chloroplast ATP synthase (gH+) is usually depressed under high light when compared ...

journal_title：Photosynthesis research

authors： Yang YJ,Zhang SB,Wang JH,Huang W

更新日期：2020-04-01 00:00:00

abstract：:In order to evaluate genotypic variation, we measured leaf photosynthetic rate (Pn) and its associated factors for the rice diversity research set of germplasm (RDRS) selected from the Genebank in National Institute of Agrobiological Sciences (NIAS). Pn showed large genotypic variation from 11.9 to 32.1 micromol m(-2 ...

journal_title：Photosynthesis research

authors： Kanemura T,Homma K,Ohsumi A,Shiraiwa T,Horie T

更新日期：2007-10-01 00:00:00

abstract：:A short list of the twentieth century's dominant figures in photosynthesis would unquestionably include Otto Warburg. One of his many discoveries, the 'bicarbonate effect' remains a lasting puzzle to his heirs in the field. Recent developments in this area of research have renewed interest and call for a re-examinatio...

journal_title：Photosynthesis research

authors： Stemler AJ

更新日期：2002-01-01 00:00:00

abstract：:The oxygen production of dark-adapted Photosystem II upon illumination by a series of single-turnover flashes shows a damped period four oscillation with flash number. The damping is attributed to 'misses' resulting from a statistical probability that a reaction center fails to produce a stable charge separation after...

journal_title：Photosynthesis research

authors： de Wijn R,van Gorkom HJ

更新日期：2002-01-01 00:00:00

abstract：:The content and composition of pigments and acyl lipids (monogalactosyl diacylglycerol, digalactosyl diacylglycerol and phosphatidyl glycerol) have been investigated in developing chloroplasts isolated from successive 2-cm sections along the leaves of wheat seedlings grown either under 100, 30 or 3 W·m(-2). In all exa...

journal_title：Photosynthesis research

authors： Lechowicz W,Maternicka K,Faltynowicz M,Poskuta J

更新日期：1986-01-01 00:00:00

abstract：:Application of target theory to the photoinactivation of Photosystem II in pea leaf discs (Park et al. 1995, 1996a,b) reveals that there is a critical light dosage below which there is complete photoprotection and above which there is photoinactivation (i.e a light-induced loss of oxygen flash yield). The critical dos...

journal_title：Photosynthesis research

authors： Sinclair J,Park YI,Chow WS,Anderson JM

更新日期：1996-10-01 00:00:00

abstract：:Productivity of most macroalgae is not currently considered limited by dissolved inorganic carbon (DIC), as the majority of species have CO2-concentrating mechanisms (CCM) allowing the active uptake of DIC. The alternative, diffusive uptake of CO2 (non-CCM), is considered rare (0-9% of all macroalgal cover in a given ...

journal_title：Photosynthesis research

authors： Cornwall CE,Revill AT,Hurd CL

更新日期：2015-05-01 00:00:00

abstract：:A model is presented describing the relationship between chlorophyll fluorescence quenching and photoinhibition of Photosystem (PS) II-dependent electron transport in chloroplasts. The model is based on the hypothesis that excess light creates a population of inhibited PS II units in the thylakoids. Those units are su...

journal_title：Photosynthesis research

authors： Giersch C,Krause GH

更新日期：1991-12-01 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

abstract：:A computer model comprising light reactions in PS II and PS I, electron-proton transport reactions in mesophyll and bundle sheath chloroplasts, all enzymatic reactions and most of the known regulatory functions of NADP-ME type C(4) photosynthesis has been developed as a system of differential budget equations for inte...

journal_title：Photosynthesis research

authors： Laisk A,Edwards GE

更新日期：2000-01-01 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：:The functional peculiarities and responses of the photosynthetic system in the flowering homoiochlorophyllous desiccation-tolerant (HDT) Haberlea rhodopensis and the non-desiccation-tolerant spinach were compared during desiccation and rehydration. Increasing rate of water loss clearly modifies the kinetic parameters ...

journal_title：Photosynthesis research

authors： Georgieva K,Maslenkova L,Peeva V,Markovska Y,Stefanov D,Tuba Z

更新日期：2005-08-01 00:00:00

abstract：:Induction of chlorophyll a fluorescence and photosynthesis as affected by temperature were measured in cucumber leaf discs. Abrupt changes of the maximal variable fluorescence, Fv(p), and photosynthesis were observed around 9° and 21°C when the temperature was decreased from 30° to 0°C. The temperature-dependent maxim...

journal_title：Photosynthesis research

authors： Janssen LH,Van Hasselt PR

更新日期：1988-02-01 00:00:00

abstract：:DCMU (3-(3,4-dichlorophenyl)-1,1-dimethylurea) at concentrations higher than 10 μM suppresses the second time range delayed fluorescence (DF) of pea chloroplasts, due to inhibition of the oxidizing side of photosystem II (PS II). The inhibition of the reducing side of PS II resulting in the suppression of millisecond ...

journal_title：Photosynthesis research

authors： Vasil'ev IR,Matorin DN,Lyadsky VV,Venediktov PS

更新日期：1988-01-01 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