Anatomy of non-uniform leaf photosynthesis.

abstract：:We have compared the properties of a mutant of barley lacking Photosystem I (viridis-zb (63) ) with the corresponding wild type using modulated fluorescence measurements. The mutant showed two unexpected characteristics. Firstly, there was a slow decline in the fluorescence signal in the light which was dependent on t...

journal_title：Photosynthesis research

authors： Juhler RK,Miller M,Simpson D,Cox RP

更新日期：1993-03-01 00:00:00

abstract：:It had been proposed that a loop, typically containing 26 or 27 amino acids, which is only present in monomeric, ferredoxin-dependent, "plant-type" glutamate synthases and is absent from the catalytic α-subunits of both NADPH-dependent, heterodimeric glutamate synthases found in non-photosynthetic bacteria and NADH-de...

journal_title：Photosynthesis research

authors： Tripathy JN,Hirasawa M,Sutton RB,Dasgupta A,Vaidyanathan N,Zabet-Moghaddam M,Florencio FJ,Srivastava AP,Knaff DB

更新日期：2015-02-01 00:00:00

abstract：:Cyanobacteria perform photosynthesis with the use of large light-harvesting antennae called phycobilisomes (PBSs). These hemispherical PBSs contain hundreds of open-chain tetrapyrrole chromophores bound to different peptides, providing an arrangement in which excitation energy is funnelled towards the PBS core from wh...

journal_title：Photosynthesis research

authors： Ranjbar Choubeh R,Sonani RR,Madamwar D,Struik PC,Bader AN,Robert B,van Amerongen H

更新日期：2018-03-01 00:00:00

abstract：:Cross-reconstitution of the extrinsic proteins and Photosystem II (PS II) from a green alga, Chlamydomonas reinhardtii, and a higher plant,Spinacia oleracea, was performed to clarify the differences of binding properties of the extrinsic proteins between these two species of organisms. (1) Chlamydomonas PsbP and PsbQ ...

journal_title：Photosynthesis research

authors： Suzuki T,Ohta H,Enami I

更新日期：2005-06-01 00:00:00

abstract：:When CO(2) supply is limited, aquatic photosynthetic organisms induce a CO(2)-concentrating mechanism (CCM) and acclimate to the CO(2)-limiting environment. Although the CCM is well studied in unicellular green algae such as Chlamydomonas reinhardtii, physiological aspects of the CCM and its associated genes in multic...

journal_title：Photosynthesis research

authors： Yamano T,Fujita A,Fukuzawa H

更新日期：2011-09-01 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：:In this brief report, we provide a pictorial essay on an international conference "Photosynthesis Research for Sustainability-2013 in honor of Jalal A. Aliyev" that was held in Baku, Azerbaijan, during June 5-9, 2013 ( http://photosynthesis2013.cellreg.org/ ). We begin this report with a brief note on Jalal Aliyev, th...

journal_title：Photosynthesis research

authors： Allakhverdiev SI,Huseynova IM,Govindjee

更新日期：2013-12-01 00:00:00

abstract：:The rate and extent of light activation of PEPC may be used as another criterion to distinguish C3 and C4 plants. Light stimulated phosphoenolypyruvate carboxylase (PEPC) in leaf discs of C4 plants, the activity being three times greater than that in the dark but stimulation of PEPC was limited about 30% over the dark...

journal_title：Photosynthesis research

authors： Rajagopalan AV,Devi MT,Raghavendra AS

更新日期：1993-10-01 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：: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：:Chloroplast NADP-dependent malate dehydrogenase (NADP-MDH, EC 1.1.1.82) is inactive in the dark and activated in the light via a reduction of specific disulfides by thiol-disulfide interchange with thioredoxin, reduced by the photosynthetic electron transfer. Compared to the constitutively active NAD-dependent forms, ...

journal_title：Photosynthesis research

authors： Miginiac-Maslow M,Lancelin JM

更新日期：2002-01-01 00:00:00

abstract：:The fluorescence kinetics of both intact needles and isolated chloroplasts of summer active and winter stressed Pinus sylvestris were measured at both room temperature and 77 K. It was confirmed that winter stress inhibited the photochemical capacity of photosystem II but also that winter stress caused the strongest i...

journal_title：Photosynthesis research

authors： Oquist G,Ogren E

更新日期：1985-01-01 00:00:00

abstract：:Quantum mechanics/molecular mechanics (QM/MM) hybrid methods are currently the most powerful computational tools for studies of structure/function relations and structural refinement of macrobiomolecules (e.g., proteins and nucleic acids). These methods are highly efficient, since they implement quantum chemistry tech...

journal_title：Photosynthesis research

authors： Sproviero EM,Newcomer MB,Gascón JA,Batista ER,Brudvig GW,Batista VS

更新日期：2009-11-01 00:00:00

abstract：:In vitro studies of the carotenoid peridinin, which is the primary pigment from the peridinin chlorophyll-a protein (PCP) light harvesting complex, showed a strong dependence on the lifetime of the peridinin lowest singlet excited state on solvent polarity. This dependence was attributed to the presence of an intramol...

journal_title：Photosynthesis research

authors： Polívka T,Pascher T,Sundström V,Hiller RG

更新日期：2005-11-01 00:00:00

abstract：:Structural analogues of the NADP(+) were studied as potential coenzymes and inhibitors for NADP(+) dependent malic enzyme from Zea mays L. leaves. Results showed that 1, N(6)-etheno-nicotinamide adenine dinucleotide phosphate (∈ NADP(+)), 3-acetylpyridine-adenine dinucleotide phosphate (APADP(+)), nicotinamide-hypoxan...

journal_title：Photosynthesis research

authors： Spampinato CP,Paneth P,O'Leary MH,Andreo CS

更新日期：1991-05-01 00:00:00

abstract：:Carbohydrate feedstocks are at the root of bioindustrial production and are needed in greater quantities than ever due to increased prioritization of renewable fuels with reduced carbon footprints. Cyanobacteria possess a number of features that make them well suited as an alternative feedstock crop in comparison to t...

journal_title：Photosynthesis research

authors： Hays SG,Ducat DC

更新日期：2015-03-01 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：:The activity of ribulose-1,5-bisphosphate carboxylase/oxygenase fromEuglena gracilis decays steadily when exposed to agents that induce oxidative modification of cysteine residues (Cu(2+), benzofuroxan, disulfides, arsenite, oxidized ascorbate). Inactivation takes place with a concomitant loss of cysteine sulfhydryl g...

journal_title：Photosynthesis research

authors： García-Ferris C,Moreno J

更新日期：1993-01-01 00:00:00

abstract：:The photophysical and photochemical reactions, after light absorption by a photosynthetic pigment-protein complex, are among the fastest events in biology, taking place on timescales ranging from tens of femtoseconds to a few nanoseconds. The advent of ultrafast laser systems that produce pulses with femtosecond durat...

journal_title：Photosynthesis research

authors： Berera R,van Grondelle R,Kennis JT

更新日期：2009-08-01 00:00:00

abstract：:The origin of the extraordinary high redox potential of P680, the primary electron donor of Photosystem II, is still unknown. Photochemically induced dynamic nuclear polarisation (photo-CIDNP) 13C magic-angle spinning (MAS) NMR is a powerful method to study primary electron donors. In order to reveal the electronic st...

journal_title：Photosynthesis research

authors： Diller A,Alia,Roy E,Gast P,van Gorkom HJ,Zaanen J,de Groot HJ,Glaubitz C,Matysik J

更新日期：2005-06-01 00:00:00

abstract：:The kinetic and spectroscopic properties of the secondary electron acceptor A1 were determined by flash absorption spectroscopy at room and cryogenic temperatures in a Photosystem I (PS I) core devoid of the iron-sulfur clusters FX, FB and FA. It was shown earlier (Warren, P.V., Golbeck, J.H. and Warden, J.T. (1993) B...

journal_title：Photosynthesis research

authors： Brettel K,Golbeck JH

更新日期：1995-09-01 00:00:00

abstract：:Dan Arnon, Bob Whatley, Mary Belle Allen, and their colleagues, were the first to obtain evidence for 'complete photosynthesis by isolated chloroplasts' albeit at rates which were 1% or less of those displayed by the intact leaf. By the 1960s, partly in the hope of confirming full functionality, there was a perceived ...

journal_title：Photosynthesis research

authors： Walker DA

更新日期：2003-01-01 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：: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：:A recent publication (Esteban in New Phytol 217:341-342, 2018) describes how the use and citation of the assay of chlorophylls a and b extracted in aqueous 80% acetone by Arnon (Plant Physiol 2:1-15, 1949) is increasing, even in journals with high impact factors. This is a very disconcerting situation: the assay is ou...

journal_title：Photosynthesis research

authors： Porra RJ,Scheer H

更新日期：2019-05-01 00:00:00

abstract：:The effect of desiccation and rehydration on the function of Photosystem II has been studied in the desiccation tolerant lichen Cladonia convoluta by thermoluminescence. We have shown that in functional fully hydrated thalli thermoluminescence signals can be observed from the recombination of the S2(3)QB (-) (B band),...

journal_title：Photosynthesis research

authors： Sass L,Csintalan Z,Tuba Z,Vass I

更新日期：1996-05-01 00:00:00

abstract：:With this Tribute, we remember and honor Thomas John (Tom) Wydrzynski. Tom was a highly innovative, independent and committed researcher, who had, early in his career, defined his life-long research goal. He was committed to understand how Photosystem II produces molecular oxygen from water, using the energy of sunlig...

journal_title：Photosynthesis research

authors： Conlan B,Govindjee,Messinger J

更新日期：2019-06-01 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：: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：:Photoacclimation by strains of Haslea "blue" diatom species H. ostrearia and H. silbo sp. nov. ined. was investigated with rapid light curves and induction-recovery curves using fast repetition rate fluorescence. Cultures were grown to exponential phase under 50 µmol m-2 s-1 photosynthetic available radiation (PAR) an...

journal_title：Photosynthesis research

authors： Perkins R,Williamson C,Lavaud J,Mouget JL,Campbell DA

更新日期：2018-09-01 00:00:00