A sensitive, simultaneous analysis of ribulose 1,5-bisphosphate carboxylase/oxygenase efficiencies: Graphical determination of the CO2/O 2 specificity factor.

abstract：:We investigated several photosynthetic parameters of a virescent mutant of durum wheat and of its wild-type. Electron transport rate to ferricyanide was the same in the two genotypes when expressed on leaf area basis while O2 evolution of the leaf tissue in saturating light and CO2 was slightly higher in the yellow ge...

journal_title：Photosynthesis research

authors： Marco GD,D'Ambrosio N,Giardi MT,Massacci A,Tricoli D

更新日期：1989-08-01 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：:NADP:ferredoxin oxidoreductase (EC. 1.6.7.1.) isolated from a thermophilic blue-green alga, Synechococcus sp., was stable at temperatures up to 65°C. The diaphorase and cytochrome c reductase activities of the enzyme were low at 25°C but increased with elevated temperature to reach a maximum at about 60°C. The pH-prof...

journal_title：Photosynthesis research

authors： Koike H,Katoh S

更新日期：1980-09-01 00:00:00

abstract：:Dry weight and Relative Growth Rate of Lemna gibba were significantly increased by CO2 enrichment up to 6000 μl CO2 l(-1). This high CO2 optimum for growth is probably due to the presence of nonfunctional stomata. The response to high CO2 was less or absent following four days growth in 2% O2. The Leaf Area Ratio decr...

journal_title：Photosynthesis research

authors： Andersen IH,Dons C,Nilsen S,Haugstad MK

更新日期：1985-03-01 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：: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

abstract：:The D1/D2 heterodimer core is the heart of the photosystem II reaction center. A characteristic feature of this heterodimer is the differentially rapid, light-dependent degradation of the D1 protein. The D1 protein is possibly the most researched photosynthetic polypeptide, with aspects of structure-function, gene, me...

journal_title：Photosynthesis research

authors： Edelman M,Mattoo AK

更新日期：2008-10-01 00:00:00

abstract：:Modified forms of the D1 protein with deletions in lumen-exposed regions, were constructed in the cyanobacterium Synechocystis 6803 using site-directed mutagenesis. Integration and stability of the mutated D1 proteins in the thylakoid membrane were studied by immunoblot and pulse-chase analyses. It was found that in Δ...

journal_title：Photosynthesis research

authors： Salih G,Wiklund R,Tyystjärvi T,Mäenpää P,Gerez C,Jansson C

更新日期：1996-08-01 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) 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 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：:We have previously investigated the response mechanisms of photosystem II complexes from spinach to strong UV and visible irradiations (Wei et al J Photochem Photobiol B 104:118-125, 2011). In this work, we extend our study to the effects of strong light on the unusual cyanobacterium Acaryochloris marina, which is abl...

journal_title：Photosynthesis research

authors： Hou X,Raposo A,Hou HJ

更新日期：2013-11-01 00:00:00

abstract：:The LH2 antenna complexes of purple bacteria occur, depending on light conditions, in various different spectroscopic forms, with a similar structure but different absorption spectra. The differences are related to point changes in the primary amino acid sequence, but the molecular-level relationship between these cha...

journal_title：Photosynthesis research

authors： Nottoli M,Jurinovich S,Cupellini L,Gardiner AT,Cogdell R,Mennucci B

更新日期：2018-08-01 00:00:00

abstract：:The psaA and psaB genes of the chloroplast genome in oxygenic photosynthetic organisms code for the major peptides of the Photosystem 1 reaction center. A heterodimer of the two polypeptides PsaA and PsaB is thought to bind the reaction center chlorophyll, P700, and the early electron acceptors A0, A1 and Fe-SX. Fe-SX...

journal_title：Photosynthesis research

authors： Hallahan BJ,Purton S,Ivison A,Wright D,Evans MC

更新日期：1995-11-01 00:00:00

abstract：:Henrik Lundegårdh made major contributions in the field of ecology and plant physiology from 1912 to 1969. His early work at Hallands Väderö in the Kattegat pioneered quantitative approaches to plant ecology and laid the understanding of carbon dioxide exchange in natural communities which is still useful today in glo...

journal_title：Photosynthesis research

authors： Larkum AW

更新日期：2003-01-01 00:00:00

abstract：:Data on cadmium accumulation in chloroplasts of terrestrial plants are scarce and contradictory. We introduced CdSO4 in hydroponic media to the final concentrations 80 and 250 μM and studied the accumulation of Cd in chloroplasts of Hordeum vulgare and Zea mays. Barley accumulated more Cd in the chloroplasts as compar...

journal_title：Photosynthesis research

authors： Lysenko EA,Klaus AA,Pshybytko NL,Kusnetsov VV

更新日期：2015-08-01 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：:Leaf variegation mutants constitute a unique group of chloroplast development mutants and are ideal genetic materials to dissect the regulation of chloroplast development. We have utilized the Arabidopsis yellow variegated (var2) mutant and genetic suppressor analysis to probe the mechanisms of chloroplast development...

journal_title：Photosynthesis research

authors： Qi Y,Zhao J,An R,Zhang J,Liang S,Shao J,Liu X,An L,Yu F

更新日期：2016-03-01 00:00:00

abstract：:The xanthophyll cycle represents one of the important photoprotection mechanisms in plant cells. In the present review, we summarize current knowledge about the violaxanthin cycle of vascular plants, green and brown algae, and the diadinoxanthin cycle of the algal classes Bacillariophyceae, Xanthophyceae, Haptophyceae...

journal_title：Photosynthesis research

authors： Goss R,Jakob T

更新日期：2010-11-01 00:00:00

abstract：:In higher plants, photosystem II (PSII) is a multi-subunit pigment-protein complex embedded in the thylakoid membranes of chloroplasts, where it is present mostly in dimeric form within the grana. Its light-harvesting antenna system, LHCII, is composed of trimeric and monomeric complexes, which can associate in variab...

journal_title：Photosynthesis research

authors： Albanese P,Nield J,Tabares JA,Chiodoni A,Manfredi M,Gosetti F,Marengo E,Saracco G,Barber J,Pagliano C

更新日期：2016-12-01 00:00:00

abstract：:Far-red light photoacclimation (FaRLiP) is a mechanism that allows some cyanobacteria to utilize far-red light (FRL) for oxygenic photosynthesis. During FaRLiP, cyanobacteria remodel photosystem (PS) I, PS II, and phycobilisomes while synthesizing Chl d, Chl f, and far-red-absorbing phycobiliproteins, and these change...

journal_title：Photosynthesis research

authors： Ho MY,Gan F,Shen G,Zhao C,Bryant DA

更新日期：2017-02-01 00:00:00

abstract：:Ongoing work has led to the identification of most of the biochemical steps in carotenoid biosynthesis in chlorophototrophic bacteria. In carotenogenesis, a relatively small number of modifications leads to a great diversity of carotenoid structures. This review examines the individual steps in the pathway, discusses ...

journal_title：Photosynthesis research

authors： Maresca JA,Graham JE,Bryant DA

更新日期：2008-08-01 00:00:00

abstract：:The chloroplast photo-oxidation and the expression of the Cab gene Lhcb1, encoding the Lhcb1 light-harvesting chlorophyll a/b-protein of PS II, have been studied in leaf cells of maize treated with the two bleaching herbicides norflurazon and amitrole and of the two carotenoid-free mutants vp9 and vp2 grown under high...

journal_title：Photosynthesis research

authors： Rocca NL,Barbato R,Vecchia FD,Rascio N

更新日期：2000-01-01 00:00:00

abstract：:The role of photosynthetic pigments in the development of separation methods in biochemistry during the period 1900-1980 is described beginning with M. Tswett who introduced separation of chlorophylls and carotenoids on columns and coined the term chromatography in 1906. In Uppsala, T. Svedberg developed the ultracent...

journal_title：Photosynthesis research

authors： Albertsson PA

更新日期：2003-01-01 00:00:00

abstract：:Photosynthesis was well-established on the earth at least 3.5 thousand million years ago, and it is widely believed that these ancient organisms had similar metabolic capabilities to modern cyanobacteria. This requires that development of two photosystems and the oxygen evolution capability occurred very early in the...

journal_title：Photosynthesis research

authors： Blankenship RE

更新日期：1992-01-01 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：:Free ribulose hisphosphate (RuBP(4-)) rather than its magnesium complex (RuBP-Mg(2-)) was the apparent substrate for spinach ribulose bisphosphate carboxylase/oxygenase. The apparent Km for total RuBP (pH 8.0 at 30° C) increased with increasing Mg(2+) concentrations from 11.6 μM at 13.33 mM Mg(2+) to 32.6 μM at 40.33 ...

journal_title：Photosynthesis research

authors： Roach DJ,McFadden BA

更新日期：1983-01-01 00:00:00

abstract：:To understand design principles for assembling photosynthetic biohybrids that incorporate precisely-controlled sites for electron injection into redox enzyme cofactor arrays, we investigated the influence of chirality in assembly of the photosensitizer ruthenium(II)bis(2,2'-bipyridine)(4-bromomethyl-4'-methyl-2,2'-bip...

journal_title：Photosynthesis research

authors： Ponomarenko NS,Kokhan O,Pokkuluri PR,Mulfort KL,Tiede DM

更新日期：2020-02-01 00:00:00

abstract：:Chlorosomes of green photosynthetic bacteria are the most amazing example of long-range ordered natural light-harvesting antennae. Chlorosomes are the largest among all known photosynthetic light-harvesting structures (~ 104-105 pigments in the aggregated state). The chlorosomal bacteriochlorophyll (BChl) c/d/e molecu...

journal_title：Photosynthesis research

authors： Yakovlev AG,Taisova AS,Fetisova ZG

更新日期：2020-12-01 00:00:00

abstract：:Characteristics of primary phases in chlorophyll a fluorescence transients based on room temperature in vivo measurement with a Plant Productivity Fluorometer (Brancker Model SF-10) can be greatly facilitated by coupling the instrument to a fast data acquisition system. The SF-10 was linked to a Multitech Industrial C...

journal_title：Photosynthesis research

authors： Norrish R,Kriedemann PE,Wiskich JT

更新日期：1983-01-01 00:00:00