Early detection of bean infection by Pseudomonas syringae in asymptomatic leaf areas using chlorophyll fluorescence imaging.

abstract：:The water-oxidation complex of Photosystem II (PS II) contains a heteronuclear cluster of 4 Mn atoms and a Ca atom. Ligands to the metal cluster involve bridging O atoms, and O and N atoms from amino acid side-chains of the D1 polypeptide of PS II, with likely additional contributions from water and CP43. Although mod...

journal_title：Photosynthesis research

authors： Sauer K,Yano J,Yachandra VK

更新日期：2005-01-01 00:00:00

abstract：:Marine macroalgae possess a range of mechanisms to increase the availability of CO2 for fixation by ribulose-1,5-bisphosphate carboxylase/oxygenase. Of these, possession of a periplasmic or external carbonic anhydrase and the ability to use bicarbonate ions is widely distributed. The mechanisms of carbon acquisition w...

journal_title：Photosynthesis research

authors： Ruiz-Nieto M,Fernández JA,Niell FX,Carmona R

更新日期：2014-09-01 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：: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：: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：:A comparative study of photosystem II complexes isolated from tobacco (Nicotiana tabacum L. cv. John William's Broadleaf) which contains normal stacked thylakoid membranes, and from two chlorophyll deficient tobacco mutants (Su/su and Su/su var. Aurea) which have low stacked grana or essentially unstacked thylakoids w...

journal_title：Photosynthesis research

authors： Specht S,Pistorius EK,Schmid GH

更新日期：1987-01-01 00:00:00

abstract：:In studies on photosynthetic systems it is common practice to interpret the results of time-resolved fluorescence experiments on the basis of compartmental, or target, models. Each compartment represents a group of molecules with similar fluorescence characteristics. In cases of practical interest, the members of each...

journal_title：Photosynthesis research

authors： Holcomb CT,Knox RS

更新日期：1996-11-01 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：: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：:Time-resolved (TR) infrared (IR) spectroscopy in the nanosecond to second timescale has been extensively used, in the last 30 years, in the study of photosynthetic systems. Interesting results have also been obtained at lower time resolution (minutes or even hours). In this review, we first describe the used technique...

journal_title：Photosynthesis research

authors： Mezzetti A,Leibl W

更新日期：2017-02-01 00:00:00

abstract：:Historically, two main concepts guided research into possible mechanisms of light-induced atomic rearrangements in oxygenic photosynthesis: Photodecomposition of CO2 and photodecomposition of water. Both concepts envisioned photoinduced transfers of cumbersome whole atoms and not, as is currently held, photoinduced el...

journal_title：Photosynthesis research

authors： Arnon DI

更新日期：1991-09-01 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 light response curves of the acceptor and donor side mechanisms of photoinhibition of Photosystem II were calculated, using Arabidopsis as a model organism. Acceptor-side photoinhibition was modelled as double reduction of QA, noting that non-photochemical quenching has the same effect on the quantum yield of QA d...

journal_title：Photosynthesis research

authors： Tyystjärvi E,Hakala M,Sarvikas P

更新日期：2005-06-01 00:00:00

abstract：:Since 1986, non-uniform photosynthesis over the leaf area that may be attributed to patchy stomatal closure, has been an important issue in stress physiology of photosynthesis. In this review, I first outline the gaseous environment within the intercellular spaces, because this is the most fundamental background of th...

journal_title：Photosynthesis research

authors： Terashima I

更新日期：1992-03-01 00:00:00

abstract：:Bioenergetic properties of thylakoids from plants submitted to a water stress stress (watering stopped for 6-15 days) have been measured in two lupin genotypes characterized as resistant or susceptible to drought. This energy coupling was assessed by flow-force relationships relating the phosphorylation rate to the ma...

journal_title：Photosynthesis research

authors： Meyer S,Phung Nhu Hung S,Trémolières A,de Kouchkovsky Y

更新日期：1992-05-01 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：:Photosynthesis powers our planet and is a source of inspiration for developing artificial constructs mimicking many aspects of the natural energy transducing process. In the complex machinery of photosystem II (PSII), the redox activity of the tyrosine Z (Tyrz) hydrogen-bonded to histidine 190 (His190) is essential fo...

journal_title：Photosynthesis research

authors： Odella E,Moore TA,Moore AL

更新日期：2021-01-11 00:00:00

abstract：:The chlorina-f2 mutant of barley (Hordeum vulgare L.) contains no chlorophyll b in its light-harvesting antenna, whereas the chlorina-103 mutant contains approximately 10% of the chlorophyll b found in wild-type. The absolute chlorophyll antenna size for Photosystem-II in wild-type, chlorina-103 and chlorina-f2 mutant...

journal_title：Photosynthesis research

authors： Harrison MA,Nemson JA,Melis A

更新日期：1993-11-01 00:00:00

abstract：:Lipids are important components of transmembrane protein complexes. In order to study the roles of lipids in photosystem II (PSII), we treated the PSII core dimer complex from a thermophilic cyanobacterium Thermosynechococcus vulcanus with phospholipase A(2) (PLA(2)) and lipase, and examined their effects on PSII stru...

journal_title：Photosynthesis research

authors： Leng J,Sakurai I,Wada H,Shen JR

更新日期：2008-10-01 00:00:00

abstract：:Triplet state electron paramagnetic resonance (EPR) experiments have been carried out at X-band on Rb. sphaeroides R-26 reaction centers that have been reconstituted with the carotenoid, spheroidene, and exchanged with 13(2)-OH-Zn-bacteriochlorophyll a and [3-vinyl]-13(2)-OH-bacteriochlorophyll a at the monomeric, 'ac...

journal_title：Photosynthesis research

authors： Frank HA,Chynwat V,Hartwich G,Meyer M,Katheder I,Scheer H

更新日期：1993-09-01 00:00:00

abstract：:Heliobacteria are a recently discovered group of anoxygenic phototrophic bacteria, first described in 1983. Heliobacteria contain bacteriochlorophyll g, a pigment unique to species of this group, and synthesize the simplest photosynthetic complexes of all known phototrophs. Also, unlike all other phototrophs, heliobac...

journal_title：Photosynthesis research

authors： Asao M,Madigan MT

更新日期：2010-06-01 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：:Chlorophyll f is a photosynthetic pigment that was discovered in 2010. In this study, we present investigations on spectral and dynamic characteristics of singlet-excited and triplet states of Chl f with the application of ultrafast time-resolved absorption and fluorescence spectroscopies. The pigment was studied at r...

journal_title：Photosynthesis research

authors： Niedzwiedzki DM,Liu H,Chen M,Blankenship RE

更新日期：2014-07-01 00:00:00

abstract：:A correlated influence of cation concentration and excitation energy level on PS II Abbreviations: AMPD = 2-amino-2-methyl-1,3-propanediol; DCIP = 2-6 dichlorophenol indophenol; DCIPH2 = DCIP in reduced state; DCIPr = rate of DCIP-reduction; DCMU = 3-(3,4 dichlorophenyl)1-1 dimethyl-urea; Fv = variable fluorescence; F...

journal_title：Photosynthesis research

authors： Berkaloff C,Duval JC

更新日期：1980-06-01 00:00:00

abstract：:Illumination of the dark-incubated cells of Synechocystis PCC6803 caused recovery of both respiratory activity of oxygen uptake and PS I-cyclic electron flow, which was monitored by the dark reduction of P700(+) in the presence of DCMU after a 50 ms pulse light (MT) under background far-red light, but the effects were...

journal_title：Photosynthesis research

authors： Mi H,Deng Y,Tanaka Y,Hibino T,Takabe T

更新日期：2001-01-01 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：:A detailed analysis of the periplasmic electron carriers of the photosynthetic bacterium Ectothiorhodospira sp. has been performed. Two low mid-point redox potential electron carriers, cytochrome c' and cytochrome c, are detected. A high potential iron-sulfur protein is the only high mid-point redox potential electron...

journal_title：Photosynthesis research

authors： Buche A,Picorel R,Moulis JM,Verméglio A

更新日期：2000-01-01 00:00:00

abstract：:Biogenesis of the photosynthetic apparatus in greening etiolated leaves of barley (Hordeum vulgare L) was investigated by an approach permitting investigation of this process under conditions that minimize differences in plastid development. Distributions of barley leaves greening for 24 h as to chlorophyll content an...

journal_title：Photosynthesis research

authors： Radyuk MS,Homan NM

更新日期：2002-01-01 00:00:00

abstract：:In polyploid plants the photosynthetic rate per cell is correlated with the amount of DNA per cell. The photosynthetic rate per unit leaf area is the product of the rate per cell times the number of photosynthetic cells per unit area. Therefore, the photosynthetic rate per unit leaf area will increase if there is a le...

journal_title：Photosynthesis research

authors： Warner DA,Edwards GE

更新日期：1993-02-01 00:00:00

abstract：:Rhodobacter sphaeroides 2.4.1 is an alpha-3 purple nonsulfur eubacterium with an extensive metabolic repertoire. Under anaerobic conditions, it is able to grow by photosynthesis, respiration and fermentation. Photosynthesis may be photoheterotrophic using organic compounds as both a carbon and a reducing source, or ph...

journal_title：Photosynthesis research

authors： Mackenzie C,Choudhary M,Larimer FW,Predki PF,Stilwagen S,Armitage JP,Barber RD,Donohue TJ,Hosler JP,Newman JE,Shapleigh JP,Sockett RE,Zeilstra-Ryalls J,Kaplan S

更新日期：2001-01-01 00:00:00