Properties of a pigment system consisting of carotenoids and reaction centre pigments in chromatophores of Rhodospirillum rubrum.

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

abstract：:This minireview summarizes the current state of knowledge concerning the role of Cl(-) in the oxygen-evolving complex (OEC) of photosystem II (PSII). The model that proposes that Cl(-) is a Mn ligand is discussed in light of more recent work. Studies of Cl(-) specificity, stoichiometry, kinetics, and retention by extr...

journal_title：Photosynthesis research

authors： Popelková H,Yocum CF

更新日期：2007-07-01 00:00:00

abstract：:This concise review describes the current status of research into how carotenoids function in bacterial photosynthesis. This is illustrated by reference to very recent studies on both the photoprotective and antenna functions of carotenoids. The major remaining open questions on the detailed molecular mechanisms invol...

journal_title：Photosynthesis research

authors： Fraser NJ,Hashimoto H,Cogdell RJ

更新日期：2001-01-01 00:00:00

abstract：:There is diverse, yet controversial fossil evidence for the existence of photosynthesis 3500 million years ago. Among the most persuasive evidence is the stromatolites described from low grade metasedimentary rocks in Western Australia and South Africa. Based on the understanding of the paleobiology of stromatolites a...

journal_title：Photosynthesis research

authors： Awramik SM

更新日期：1992-08-01 00:00:00

abstract：:Photosystem I particles containing 30-40 chlorophyll a molecules per primary electron donor P700 were subjected to 1.5 ps low density laser flashes at 610 nm resulting in excitation of the antenna chlorophyll a molecules followed by energy transfer to P700 and subsequent oxidation of P700. Absorbance changes were moni...

journal_title：Photosynthesis research

authors： Wasielewski MR,Fenton JM,Govindjee

更新日期：1987-01-01 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：: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

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：:The world is facing energy crisis and environmental issues due to the depletion of fossil fuels and increasing CO2 concentration in the atmosphere. Growing microalgae can contribute to practical solutions for these global problems because they can harvest solar energy and capture CO2 by converting it into biofuel usin...

journal_title：Photosynthesis research

authors： Razeghifard R

更新日期：2013-11-01 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：: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：:Envelope membranes were isolated by sucrose density gradient floatation centrifugation from the homogenate of cyanelles prepared from Cyanophora paradoxa. Two yellow bands were separated after 40 h of centrifugation. The buoyant density of one of the two fractions (fraction Y2) coincided with that of inner envelope me...

journal_title：Photosynthesis research

authors： Koike H,Ikeda Y,Yusa F,Kashino Y,Satoh K

更新日期：2007-07-01 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：:Polyamines (PAs) are small metabolites that are produced and oxidized in chloroplasts with an obscure mode of action. Recently, we showed that qE is stimulated by PAs in higher plants (Nicotiana tabacum) and in genetically modified plants with elevated thylakoid-associated PAs (Ioannidis and Kotzabasis Biochim Biophys...

journal_title：Photosynthesis research

authors： Ioannidis NE,Sfichi-Duke L,Kotzabasis K

更新日期：2011-02-01 00:00:00

abstract：:Macroalgae occur in the marine benthos from the upper intertidal to depths of more than 200 m, contributing up to 1 Pg C per year to global primary productivity. Freshwater macroalgae are mainly green (Chlorophyta) with some red (Rhodophyta) and a small contribution of brown (Phaeophyceae) algae, while in the ocean al...

journal_title：Photosynthesis research

authors： Raven JA,Hurd CL

更新日期：2012-09-01 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：:Detached wheat leaves were illuminated in air until a steady rate of photosynthesis was established. Then the gas was changed to 1% O2, 99% N2 and after 2.5 h further illumination the capacity of the leaves for photosynthesis in air was decreased to approximately 50%. Measurement of RuBP carboxylase activity in extrac...

journal_title：Photosynthesis research

authors： Bovle FA,Keys AJ

更新日期：1982-06-01 00:00:00

abstract：:Six chlorophyll-protein complexes are isolated from thylakoid membranes of Bryopsis corticulans by dodecyl-beta-D: -maltoside polyacrylamide gel electrophoresis. Unlike that of higher plants, the 77 K fluorescence emission spectrum of the CP1 band, the PSI core complexes of B. corticulans, presents two peaks, one at 6...

journal_title：Photosynthesis research

authors： Chen G,Niu X,Chen X,Li L,Kuang T,Li S

更新日期：2008-04-01 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：: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 'Salada de Chiprana' (Chiprana Lake) is a hypersaline (30-73 per thousand), permanent and shallow lake of endorheic origin in a semi-arid region of the Ebro depression (Aragon, Spain). Magnesium sulfate and sodium chloride represent the main salts of this athalassohaline environment. Anoxic conditions occurred per...

journal_title：Photosynthesis research

authors： Vila X,Guyoneaud R,Cristina XP,Figueras JB,Abella CA

更新日期：2002-01-01 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：: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：:Peridinin-chlorophyll-protein (PCP), containing differently absorbing chlorophyll derivatives, are good models with which to study energy transfer among monomeric chlorophylls (Chls) by both bulk and single-molecule spectroscopy. They can be obtained by reconstituting the N-terminal domain of the protein (N-PCP) with ...

journal_title：Photosynthesis research

authors： Brotosudarmo TH,Mackowski S,Hofmann E,Hiller RG,Bräuchle C,Scheer H

更新日期：2008-02-01 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：:Energy transfer of the light harvesting complex LHC-II trimer, extracted from spinach, was studied in the Q(y) region at room temperature by femtosecond transient absorption spectroscopy. Configuration interaction exciton method [Linnanto et al. (1999) J Phys Chem B 103: 8739-8750] and 2.72 A structural information re...

journal_title：Photosynthesis research

authors： Linnanto J,Martiskainen J,Lehtovuori V,Ihalainen J,Kananavicius R,Barbato R,Korppi-Tommola J

更新日期：2006-03-01 00:00:00

abstract：:The relationship between the redox state of P700, the primary donor of PS I, monitored using absorbance changes at 830 nm and photochemical energy storage in PS I reaction centers assayed with the photoacoustic method (PA) was studied in isolated PS I submembrane particles aspirated onto nitrocellulose filters. Severa...

journal_title：Photosynthesis research

authors： Bukhov NG,Rajagopal S,Carpentier R

更新日期：2002-01-01 00:00:00

abstract：:Alternative electron sinks are an important regulatory mechanism to dissipate excessively absorbed light energy particularly under fast changing dynamic light conditions. In diatoms, the cyclic electron transport (CET) around Photosystem II (PS II) is an alternative electron transport pathway (AET) that contributes to...

journal_title：Photosynthesis research

authors： Wagner H,Jakob T,Lavaud J,Wilhelm C

更新日期：2016-05-01 00:00:00

abstract：:The seasonal maximum in photosynthetic CO2 exchange rate (CER) and the cessation of leaf expansion in soybeans (Glycine max (L.) Merr) accompany fruiting under normal agricultural conditions. To investigate whether these phenomena were obligatively tied together, we caused early flowering of long-season varieties by i...

journal_title：Photosynthesis research

authors： Enos WT,Alfich RA,Hesketh JD,Woolley JT

更新日期：1982-12-01 00:00:00

abstract：:The crystallization of a given protein is a hard task being even more complicated when the protein shows a hydrophobic behavior. In the case of photosynthetic proteins, the difficulty of the experiments increased due to the high light sensitivity. Aqueous solutions of photosystem II core complex (OEC PSII) of Pisum sa...

journal_title：Photosynthesis research

authors： Kutá Smatanová I,Gavira JA,Rezácová P,Vácha F,García-Ruiz JM

更新日期：2006-12-01 00:00:00