Investigating UV screening in leaves by two different types of portable UV fluorimeter reveals in vivo screening by anthocyanins and carotenoids.

abstract：:Phycobilisomes, comprised of both chromophoric (phycobiliproteins) and non-chromophoric (linker polypeptides) proteins, are light-harvesting complexes present in the prokaryotic cyanobacteria and the eukaryotic red algae. Many cyanobacteria exhibit complementary chromatic adaptation, a process which enables these orga...

journal_title：Photosynthesis research

authors： Grossman AR,Lemaux PG,Conley PB,Bruns BU,Anderson LK

更新日期：1988-07-01 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：:The interaction of PsaC with the core heterodimer of Photosystem 1 was studied in wild type Synechocystis sp. PCC 6803 and the site-directed mutant R561E of PsaB. The mutant reaction center was much less stable in urea and the functional reconstitution of the mutant core using PsaC was impaired. However, the extent of...

journal_title：Photosynthesis research

authors： Rodday SM,Schulz R,McLntosh L,Biggins J

更新日期：1994-12-01 00:00:00

abstract：:The dependence of chlorosome development on bacteriochlorophyll (BChl)c synthesis was studied with the phototrophic green bacteriumChloroflexus aurantiacus. By selecting defined culture conditions, three possibilities could be identified. Upon addition of 5-aminolevulinic acid, cells of resting cultures increased thei...

journal_title：Photosynthesis research

authors： Foidl M,Golecki JR,Oelze J

更新日期：1994-07-01 00:00:00

abstract：:Although it has been believed that wild-type plants are capable of protecting photosystem I (PSI) under high light, our previous study indicates that PSI is sensitive to high light in the shade-established tree species Psychotria rubra. However, the underlying physiological mechanisms are unclear. In this study, we ex...

journal_title：Photosynthesis research

authors： Huang W,Yang YJ,Zhang JL,Hu H,Zhang SB

更新日期：2016-07-01 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 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 effect of light on the metabolism of ammonia was studied by subjecting detached maize leaves to 150 or 1350 μmol m(-2) s(-1) PAR during incubation with the leaf base in 2 mM (15)NH4Cl. After up to 60 min, leaves were extracted. Ammonia, glutamine, glycine, serine, alanine, and aspartate were separated by isotherma...

journal_title：Photosynthesis research

authors： Klaus RE,Berger MG,Fock HP

更新日期：1985-09-01 00:00:00

abstract：:Solubilisation of thylakoid membranes from young leaves of Pisum sativum in the presence of Triton X-100 resulted in an almost complete loss of quenching of light-harvesting chlorophyll-protein (LHCP) fluorescence, as measured at 77°K. There were concomitant changes in the kinetics of light-saturation curves of electr...

journal_title：Photosynthesis research

authors： Murphy DJ

更新日期：1986-01-01 00:00:00

abstract：:Soybean [Glycine max (L.) Merr. cv. Williams 82 and A3127] plants were grown in the field under long-term soil moisture deficit and irrigation to determine the effects of severe drought stress on the photosynthetic capacity of soybean leaves. Afternoon leaf water potentials, stomatal conductances, intercellular CO2 co...

journal_title：Photosynthesis research

authors： Frederick JR,Alm DM,Hesketh JD,Below FE

更新日期：1990-07-01 00:00:00

abstract：:C3 carbon fixation has a bad reputation, primarily because it is associated with photorespiration, a biochemical pathway thought to waste a substantial amount of the carbohydrate produced in a plant. This review presents evidence collected over nearly a century that (1) Rubisco when associated with Mn(2+) generates ad...

journal_title：Photosynthesis research

authors： Bloom AJ

更新日期：2015-02-01 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：:Plants are exposed to a temporally and spatially heterogeneous environment, and photosynthesis is well adapted to these fluctuations. Understanding of the complex, non-linear dynamics of photosynthesis in fluctuating light requires novel-modeling approaches that involve not only the primary light and dark biochemical ...

journal_title：Photosynthesis research

authors： Nedbal L,Cervený J,Rascher U,Schmidt H

更新日期：2007-07-01 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：:The author gives an autobiographical sketch of his path to chlorophyll research, and describes some results. The discussion is largely focused on long wavelength forms of chlorophyll and how they might be generated by self-assembly. Dimers or oligomers, (Chl)n, result from coordination interactions between the central...

journal_title：Photosynthesis research

authors： Katz JJ

更新日期：1990-12-01 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：:A proton electrochemical potential across the membranes of photosynthetic purple bacteria is established by a light-driven proton pump mechanism: the absorbed light in the reaction center initiates electron transfer which is coupled to the vectorial displacement of protons from the cytoplasm to the periplasm. The stoi...

journal_title：Photosynthesis research

authors： Maróti P

更新日期：1993-07-01 00:00:00

abstract：:The unicellular green alga Chlamydomonas reinhardtii acclimates to low-CO2 (LC) conditions by actively transporting inorganic carbon (Ci) into the cell, resulting in an increase in photosynthetic efficiency. This mechanism is called the carbon-concentrating mechanism (CCM), and soluble protein LCIB is essential for th...

journal_title：Photosynthesis research

authors： Yamano T,Asada A,Sato E,Fukuzawa H

更新日期：2014-09-01 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：:Little is known about the mechanistic basis for the movement of promiscuous nucleic acids across cell membranes. To address this problem we sought conditions that would permit the entry of plasmid DNA into isolated, intact pea chloroplasts. DNA uptake did not occur normally, but was induced by hypotonic treatments, by...

journal_title：Photosynthesis research

authors： Cerutti H,Jagendorf A

更新日期：1995-11-01 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：:We present here our tribute to an outstanding unique scientist, a pioneer of plant biochemistry, best known for his seminal ground-breaking discoveries related to electron and proton transport, and their intimate relation to ATP synthesis in chloroplasts. His dedication and in-depth understanding of science was matche...

journal_title：Photosynthesis research

authors： Govindjee

更新日期：2017-06-01 00:00:00

abstract：:The possible origins of the different fluorescence decay components in green plants are discussed in terms of a random walk and Butler's bipartite model. The interaction of the excitations with the photosystem II reaction centers and, specifically, the regeneration of theses excitations by charge recombination within ...

journal_title：Photosynthesis research

authors： Geacintov NE,Breton J,Knox RS

更新日期：1986-01-01 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 major light-harvesting system in cyanobacteria, the phycobilisome, is an essential component of the photosynthetic apparatus that regulates the utilization of the natural light source-the Sun. Earlier works revealed that the thylakoid membrane composition and its physical properties might have an important role in...

journal_title：Photosynthesis research

authors： Vajravel S,Laczkó-Dobos H,Petrova N,Herman É,Kovács T,Zakar T,Todinova S,Taneva S,Kovács L,Gombos Z,Tóth T,Krumova S

更新日期：2020-08-01 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：: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：:Cyanobacteria, algae, and plants produce dioxygen from water. Driven and clocked by light quanta, the catalytic Mn(4)Ca Tyrosine centre accumulates four oxidizing equivalents before it abstracts four electrons from water and liberates dioxygen and protons. Intermediates of this reaction cascade are short-lived (<100 m...

journal_title：Photosynthesis research

authors： Clausen J,Junge W

更新日期：2008-10-01 00:00:00

abstract：:Cuttings of grapevine (Vitis vinifera L. cv. Chardonnay) were dark-forced at least three weeks. Pigment contents, 77 K fluorescence emission, excitation spectra of the leaves, petioles, stems, transmission electron micrographs of the etioplasts from leaves, the chlorenchyma tissues of the stems were analysed. The dark...

journal_title：Photosynthesis research

authors： Böddi B,Bòka K,Sundqvist C

更新日期：2004-01-01 00:00:00

abstract：:We present here the life and work of Shmuel Malkin (1934-2017), an accomplished scientist and a gifted musician who touched the lives of many around the world. His early scientific work addressed the dynamics of light harvesting and electron transport in photosynthesis. Later, he used photoacoustic and photothermal me...

journal_title：Photosynthesis research

authors： Herbert SK,Siderer Y,Govindjee

更新日期：2018-07-01 00:00:00