Theoretical characterization of excitation energy transfer in chlorosome light-harvesting antennae from green sulfur bacteria.

abstract：:Thylakoids are complex sub-organellar membrane systems whose role in photosynthesis makes them critical to life. Thylakoids require the coordinated expression of both nuclear- and plastid-encoded proteins to allow rapid response to changing environmental conditions. Transport of cytoplasmically synthesized proteins to...

journal_title：Photosynthesis research

authors： New CP,Ma Q,Dabney-Smith C

更新日期：2018-12-01 00:00:00

abstract：:This review presents a summary of recent investigations examining the structure and function of the chlorophyll-proteins CPa-1 (CP47) and CPa-2 (CP43). Comparisons of the derived amino acid sequences of these proteins suggest sites for chlorophyll binding and for interactions between these chlorophyll-proteins and oth...

journal_title：Photosynthesis research

authors： Bricker TM

更新日期：1990-04-01 00:00:00

abstract：:Energy storage measurements by modulated photothermal radiometry (PTR) were carried out on intact leaves to assess the value of the PTR method for photosynthesis research. In particular, correlations to the redox state of P700 under various conditions were examined. PTR monitors modulated light conversion to heat by s...

journal_title：Photosynthesis research

authors： Malkin S,Schreiber U,Jansen M,Canaani O,Shalgi E,Cahen D

更新日期：1991-08-01 00:00:00

abstract：:The factors governing quinone protein binding in the photosynthetic bacterium Rps. viridis are investigated via use of empirical intermolecular energy calculations using the GRID method (PJ Goodford (1985) J Med Chem 28: 849-854). A probe atom corresponding to a carbonyl oxygen atom is used to investigate regions exhi...

journal_title：Photosynthesis research

authors： O'Malley PJ,Braithwaite CJ

更新日期：1994-01-01 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：:Roderick K. Clayton passed away on October 23, 2011, at the age of 89, shortly after the plan for this dedicatory issue of Photosynthesis Research had been hatched. I had just written a lengthy letter to him to re-establish contact after a hiatus of 2 or 3 years, and to suggest that I visit him to talk about his life....

journal_title：Photosynthesis research

authors： Wraight CA

更新日期：2014-05-01 00:00:00

abstract：:The coupling factor CF1 is a catalytic part of chloroplast ATP synthase which is exposed to stroma whose viscosity is many-fold higher than that of reaction mixtures commonly used to measure kinetics of CF1-catalyzed ATP hydrolysis. This study is focused on the effect of medium viscosity modulated by sucrose or bovine...

journal_title：Photosynthesis research

authors： Malyan AN

更新日期：2016-05-01 00:00:00

abstract：:The chlorophyll content is an important experimental parameter in agronomy and plant biology research. In this report, we explore the feasibility of determining total concentration of extracts containing chlorophyll a and chlorophyll b by chlorophyll fluorescence. We found that an excitation at 457 nm results in the s...

journal_title：Photosynthesis research

authors： Lamb JJ,Eaton-Rye JJ,Hohmann-Marriott MF

更新日期：2012-10-01 00:00:00

abstract：:Fourier transform infrared (FTIR) spectroscopy probes the vibrational properties of amino acids and cofactors, which are sensitive to minute structural changes. The lack of specificity of this technique, on the one hand, permits us to probe directly the vibrational properties of almost all the cofactors, amino acid si...

journal_title：Photosynthesis research

authors： Berthomieu C,Hienerwadel R

更新日期：2009-08-01 00:00:00

abstract：:The engagement of different photoprotective mechanisms in the cells of the carotenogenic astaxanthin-accumulating chlorophyte Haematococcus pluvialis (i) under favorable conditions, (ii) in the course of stress-induced haematocyst formation and (iii) during recovery from the stress was studied. To this end, we followe...

journal_title：Photosynthesis research

authors： Chekanov K,Lukyanov A,Boussiba S,Aflalo C,Solovchenko A

更新日期：2016-06-01 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：:The cyanobacterial small CAB-like proteins (SCPs) are one-helix proteins with compelling similarity to the first and third transmembrane helix of proteins belonging to the CAB family of light-harvesting complex proteins in plants. The SCP proteins are transiently expressed at high light intensity and other stress cond...

journal_title：Photosynthesis research

authors： Kufryk G,Hernandez-Prieto MA,Kieselbach T,Miranda H,Vermaas W,Funk C

更新日期：2008-02-01 00:00:00

abstract：:A three-dimensional model of the core proteins D1 and D2, including the cofactors, that form the Photosystem II reaction centre of pea (Pisum sativum), has been generated. This model was built with a rule-based computer modelling system using the information from the crystal structures of the photosynthetic reaction c...

journal_title：Photosynthesis research

authors： Ruffle SV,Donnelly D,Blundell TL,Nugent JH

更新日期：1992-11-01 00:00:00

abstract：:A chlorosome is an antenna complex located on the cytoplasmic side of the inner membrane in green photosynthetic bacteria that contains tens of thousands of self-assembled bacteriochlorophylls (BChls). Green bacteria are known to incorporate various esterifying alcohols at the C-17 propionate position of BChls in the ...

journal_title：Photosynthesis research

authors： Wang Y,Freund DM,Magdaong NM,Urban VS,Frank HA,Hegeman AD,Tang JK

更新日期：2014-10-01 00:00:00

abstract：:The quenching of variable fluorescence yield (qN) and the quenching of dark level fluorescence yield (q0) directly atributable to high-energy-state fluorescence quenching (qE) was studied to distinguish between energy dissipation in the antenna and light harvesting complexes (antenna quenching) and energy dissipation ...

journal_title：Photosynthesis research

authors： Rees D,Noctor GD,Horton P

更新日期：1990-09-01 00:00:00

abstract：:We have used antibodies generated against synthetic peptides to determine the topology of the 43 kD chlorophyll a binding protein (CP 43) of Photosystem II. Based on the pattern of proteolytic fragments detected (on western blots) by peptide specific antibodies, a six transmembrane span topological model, with the ami...

journal_title：Photosynthesis research

authors： Sayre RT,Wrobel-Boerner EA

更新日期：1994-04-01 00:00:00

abstract：:We investigated the dark-to-light transition in Synechococcus sp. PCC 7942 cells by a detailed analysis of fluorescence transients induced by strong red light. The transients, recorded with high data-acquisition, revealed all the steps of the fast (OJIP; 10(-5)-1 s) and slow phase (PSM(T); 1-10(3) s), kinetically dist...

journal_title：Photosynthesis research

authors： Tsimilli-Michael M,Stamatakis K,Papageorgiou GC

更新日期：2009-03-01 00:00:00

abstract：:The quantum yield for light-induced H2 generation was measured for a previously optimized bio-hybrid cytochrome c 6-crosslinked PSI(C13G)-1,8-octanedithiol-[FeFe]-H2ase(C97G) (PSI-H2ase) nanoconstruct. The theoretical quantum yield for the PSI-H2ase nanoconstruct is 0.50 molecules of H2 per photon absorbed, which equa...

journal_title：Photosynthesis research

authors： Applegate AM,Lubner CE,Knörzer P,Happe T,Golbeck JH

更新日期：2016-01-01 00:00:00

abstract：:The effects of Fe resupply to Fe-deficient plants have been investigated in hydroponically-grown sugar beet. In the short-term (24 h) after Fe resupply, major changes were observed, although de novo chlorophyll (Chl) synthesis had not begun yet. Approximately 50% of the zeaxanthin was converted into violaxanthin, wher...

journal_title：Photosynthesis research

authors： Larbi A,Abadía A,Morales F,Abadía J

更新日期：2004-01-01 00:00:00

abstract：:Precise control of the proton concentration gradient across thylakoid membranes (ΔpH) is essential for photosynthesis and its regulation because the gradient contributes to the generation of the proton motive force used for ATP synthesis and also for the fast and reversible induction of non-photochemical quenching (NP...

journal_title：Photosynthesis research

authors： Trinh MDL,Sato R,Masuda S

更新日期：2019-03-01 00:00:00

abstract：:This paper is concerned with relating thermoluminescence to the total free-energy change, ΣG, involved in detrapping a particular electron-hole pair as a photosynthetic sample is warmed from an initial low temperature. It extends a mathematical discussion of four possible mechanisms introduced in an earlier paper [DeV...

journal_title：Photosynthesis research

authors： Devault D,Govindjee

更新日期：1990-05-01 00:00:00

abstract：:Taro and cocoyam were grown outdoors in either full sun or under 40% shade. Leaves were tagged as they emerged and the effect of leaf age on net CO2 assimilation rate (A) was determined. The effects of shading on A, transpiration (E), stomatal conductance for CO2 (gc) and H2O (gs), and water use efficiency (WUE) were ...

journal_title：Photosynthesis research

authors： Schaffer B,O'Hair SK

更新日期：1987-01-01 00:00:00

abstract：:In the leaf succulent Asclepiad Hoya carnosa (L.) R. Br., CAM photosynthesis occurred under well-watered conditions, as characterized by diurnal gas exchange and changes in titratable acidity. Following 10-12 days of severe water stress, the plants shifted from CAM to a modified CAM-idling mode of metabolism. CAM-idli...

journal_title：Photosynthesis research

authors： Rayder L,Ting IP

更新日期：1983-09-01 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：: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：:Rubisco (ribulose-1,5-bisphosphate carboxylase/oxygenase) catalyzes carboxylation of ribulose-1,5-bisphosphate, the first in a series of reactions leading to the incorporation of atmospheric CO₂ into biomass. Rubisco requires Rubisco activase (RCA), an AAA+ ATPase that reactivates Rubisco by remodelling the conformati...

journal_title：Photosynthesis research

authors： Scales JC,Parry MA,Salvucci ME

更新日期：2014-03-01 00:00:00

abstract：:The filamentous nitrogen-fixing cyanobacterium, Anabaena sp. strain PCC 7120 was found to tolerate very high doses of 60Co-gamma radiation or prolonged desiccation. Post-stress, cells remained intact and revived all the vital functions. A remarkable capacity to repair highly disintegrated genome and recycle the damage...

journal_title：Photosynthesis research

authors： Singh H,Anurag K,Apte SK

更新日期：2013-10-12 00:00:00

abstract：:Here, we describe a new imaging setup able to assess in vivo photosynthetic activity. The system specifically measures time-resolved chlorophyll fluorescence in response to light. It is composed of a fast digital camera equipped with a wide-angle lens for the analysis of samples up to 10 x 10 cm, i.e. entire plants or...

journal_title：Photosynthesis research

authors： Johnson X,Vandystadt G,Bujaldon S,Wollman FA,Dubois R,Roussel P,Alric J,Béal D

更新日期：2009-10-01 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：:A spontaneous mutant (R/89) of photosynthetic purple bacterium Rhodobacter sphaeroides R-26 was selected for resistance to 200 μM atrazin. It showed increased resistance to interquinone electron transfer inhibitors of o-phenanthroline (resistance factor, RF=20) in UQo reconstituted isolated reaction centers and terbut...

journal_title：Photosynthesis research

authors： Tandori J,Nagy L,Puskás A,Droppa M,Horváth G,Maróti P

更新日期：1995-08-01 00:00:00