The distribution of leaf photosynthetic activity in a mixed grass-legume pasture canopy.

abstract：:The nature of interaction of cytochrome b-559 high potential (HP) with electron transport on the reducing side of photosystem II was investigated by measuring the susceptibility of cytochrome b-559HP to 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU) under different conditions. Submicromolar DCMU concentrations decreas...

journal_title：Photosynthesis research

authors： Samson G,Fork DC

更新日期：1991-03-01 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：:Glycolate oxidase (GO; EC 1.1.3.1) was purified from the leaves of three plant species:Amaranthus hypochondriacus L.(NAD-ME type C4 dicot),Pisum sativum L. (C3 species) andParthenium hysterophorus L. (C3-C4. intermediate). A flavin moiety was present in the enzyme from all the three species. The enzyme from the C4 pla...

journal_title：Photosynthesis research

authors： Devi MT,Rajagopalan AV,Raghavendara AS

更新日期：1996-03-01 00:00:00

abstract：:Ten strains from a collection of mutants ofSynechocystis 6803 defective in Photosystem II (PS II) function were transformed with chromosomal DNA of wild-type and mutant cells. Cross hybridization data allowed to identify four groups of PS II-mutants. Highly efficient transformation was observed between different mutan...

journal_title：Photosynthesis research

authors： Ermakova SY,Elanskaya IV,Kallies KU,Weihe A,Börner T,Shestakov SV

更新日期：1993-08-01 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：: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：:Rates of net CO2 uptake were examined in developing leaves of Hydrocotyle bonariensis. Leaves that developed under high photosynthetically active radiation (48 mol m(-2) day(-1) PAR) were smaller, thicker, and reached maximum size sooner than did leaves that developed under low PAR (4.8 mol m(-2) day(-1)). Maximum net...

journal_title：Photosynthesis research

authors： Longstreth DJ,Hartsock TL,Nobel PS

更新日期：1981-06-01 00:00:00

abstract：:Several protein-coding genes from land plant chloroplasts have been shown to contain introns. The majority of these introns resemble the fungal mitochondrial group II introns due to considerable nucleotide sequence homology at their 5' and 3' ends and they can readily be folded to form six hairpins characteristic of t...

journal_title：Photosynthesis research

authors： Plant AL,Gray JC

更新日期：1988-04-01 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

abstract：:P700 enriched fractions were isolated from two brown algae and one diatom using sucrose density centrifugation after digitinin solubilization. They had a Chl a/P700 ratio of about 250 to 375 according to the species, they were enriched in long-wavelength absorbing Chl a and exhibited a fluorescence emission maximum at...

journal_title：Photosynthesis research

authors： Berkaloff C,Caron L,Rousseau B

更新日期：1990-02-01 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：: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：:This article summarizes knowledge on genes and their respective proteins in the field of green algal hydrogen research. Emphasis is placed on recently cloned genes from the unicellular green alga Chlamydomonas reinhardtii, including HydA1 and HydA2, which encode homologous [Fe]-hydrogenases, Tla1, which encodes a chlo...

journal_title：Photosynthesis research

authors： Melis A,Seibert M,Happe T

更新日期：2004-01-01 00:00:00

abstract：:Three Chl-protein complexes were isolated from thylakoid membranes of Bryopsis maxima and Ulva pertusa, marine green algae that inhabit the intertidal zone of the Pacific Ocean off the eastern coast of Japan by dodecyl-beta-D-maltoside polyacrylamide gel electrophoresis. The slowest-moving fractions showed low Chl a/b...

journal_title：Photosynthesis research

authors： Yamazaki JY,Kozu A,Fukunaga Y

更新日期：2006-07-01 00:00:00

abstract：:The oxidation kinetics under far-red light (FRL) of photosystem I (PSI) high potential donors P700, plastocyanin (PC), and cytochrome f (Cyt f) were investigated in sunflower leaves with the help of a new high-sensitivity photometer at 810 nm. The slopes of the 810 nm signal were measured immediately before and after ...

journal_title：Photosynthesis research

authors： Talts E,Oja V,Rämma H,Rasulov B,Anijalg A,Laisk A

更新日期：2007-10-01 00:00:00

abstract：:Recently, a number of techniques, some of them relatively new and many often used in combination, have given a clearer picture of the dynamic role of electron transport in Photosystem I of photosynthesis and of coupled cyclic photophosphorylation. For example, the photoacoustic technique has detected cyclic electron t...

journal_title：Photosynthesis research

authors： Fork DC,Herbert SK

更新日期：1993-06-01 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：:The oxygen flash yield (YO2) and photochemical yield of PS II (ΦPS II) were simultaneously detected in intact Chlorella cells on a bare platinum oxygen rate electrode. The two yields were measured as a function of background irradiance in the steady-state and following a transition from light to darkness. During stead...

journal_title：Photosynthesis research

authors： Prasil O,Kolber Z,Berry JA,Falkowski PG

更新日期：1996-06-01 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：:In this communication, we report our progress on the development of low-frequency Fourier transform infrared (FTIR) spectroscopic techniques to study metal-substrate and metal-ligand vibrational modes in the Photosystem II/oxygen-evolving complex (PS II/OEC). This information will provide important structural and mech...

journal_title：Photosynthesis research

authors： Chu HA,Gardner MT,Hillier W,Babcock GT

更新日期：2000-01-01 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：:We generated transgenic tobacco plants with high levels of fructose-1,6-bisphosphatase expressing cyanobacterialfructose-1,6-/sedoheptulose-1,7-bisphosphatase in the cytosol. At ambient CO(2) levels (360 ppm), growth, photosynthetic activity, and fresh weight were unchanged but the sucrose/hexose/starch ratio was slig...

journal_title：Photosynthesis research

authors： Tamoi M,Hiramatsu Y,Nedachi S,Otori K,Tanabe N,Maruta T,Shigeoka S

更新日期：2011-05-01 00:00:00

abstract：:A chloroplast preparation was extracted from squash (Cucurbita pepo (L.) var. Senator). Enrichment of intact chloroplasts was achieved by continuous free-flow electrophoresis. The addition of monoterpenes, detergent and free fatty acids changed the elecrophoretic separation pattern characteristically. Monoterpene-depe...

journal_title：Photosynthesis research

authors： Klingler H,Frosch S,Wagner E

更新日期：1991-06-01 00:00:00

abstract：:This article provides a glimpse into the dawning of research on chlorophyll-protein complexes and a brief recollection of the path that led us to the identification of the photosystem II reaction center, i.e., the polypeptides that carry the site of primary charge separation in oxygenic photosynthesis. A preliminary v...

journal_title：Photosynthesis research

authors： Satoh K

更新日期：2008-10-01 00:00:00

abstract：:Analysis of leaf-level photosynthetic responses of 39 tree species grown in elevated concentrations of atmospheric CO2 indicated an average photosynthetic enhancement of 44% when measured at the growth [CO2]. When photosynthesis was measured at a common ambient [CO2], photosynthesis of plants grown at elevated [CO2] w...

journal_title：Photosynthesis research

authors： Gunderson CA,Wullschleger SD

更新日期：1994-03-01 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：: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：:Brownian Dynamics (BD) computer simulations were used to study electrostatic interactions between turnip cytochrome f (cyt f) and spinach plastocyanin (PC). Three different spinach PC structures were studied: The X-ray crystal structure of Xue and coworkers [(1998) Protein Sci 7:2099-2105] and the NMR structure of Mus...

journal_title：Photosynthesis research

authors： Gross EL

更新日期：2007-11-01 00:00:00

abstract：:This review describes the progress in our understanding of the structure of the Mn complex in Photosystem II over the last two decades. Emphasis is on the research from our laboratory, especially the results from X-ray absorption spectroscopy, low temperature electron paramagnetic resonance and electron spin echo enve...

journal_title：Photosynthesis research

authors： Klein MP,Sauer K,Yachandra VK

更新日期：1993-01-01 00:00:00

abstract：:Species in the Laxa and Grandia groups of the genus Panicum are adapted to low, wet areas of tropical and subtropical America. Panicum milioides is a species with C3 photosynthesis and low apparent photorespiration and has been classified as a C3/C4 intermediate. Other species in the Laxa group are C3 with normal phot...

journal_title：Photosynthesis research

authors： Henning JC,Brown RH

更新日期：1986-01-01 00:00:00