Taxonomy, phylogeny, and ecology of the heliobacteria.

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：:Temperature response of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) catalytic properties directly determines the CO2 assimilation capacity of photosynthetic organisms as well as their survival in environments with different thermal conditions. Despite unquestionable importance of Rubisco, the comprehensi...

journal_title：Photosynthesis research

authors： Galmés J,Kapralov MV,Copolovici LO,Hermida-Carrera C,Niinemets Ü

更新日期：2015-02-01 00:00:00

abstract：:Earlier mass spectrometric measurements, in which oxygen evolution was measured following short saturating light flashes, indicated that with a time resolution of about 30 s no form of bound water and/or an oxidation product exists up to the redox state S3 of the oxygen evolving center (R. Radmer and O. Ollinger, 1986...

journal_title：Photosynthesis research

authors： Bader KP,Renger G,Schmid GH

更新日期：1993-01-01 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：: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：:This contribution gives a brief survey of the short history since the discovery of the aerobic phototrophic bacteria to focus on a general evolutionary scenario. Most of the citations are of reviews that have covered the earlier literature and to which the reader is directed at appropriate places in the following text...

journal_title：Photosynthesis research

authors： Beatty JT

更新日期：2002-01-01 00:00:00

abstract：:Induction of chlorophyll a fluorescence and photosynthesis as affected by temperature were measured in cucumber leaf discs. Abrupt changes of the maximal variable fluorescence, Fv(p), and photosynthesis were observed around 9° and 21°C when the temperature was decreased from 30° to 0°C. The temperature-dependent maxim...

journal_title：Photosynthesis research

authors： Janssen LH,Van Hasselt PR

更新日期：1988-02-01 00:00:00

abstract：:Using 77 K chlorophyll a (Chl a) fluorescence spectra in vivo, the development was studied of Photosystems II (PS II) and I (PS I) during greening of barley under intermittent light followed by continuous light at low (LI, 50 mumol m(-2) s(-1)) and high (HI, 1000 mumol m(-2) s(-1)) irradiances. The greening at HI inte...

journal_title：Photosynthesis research

authors： Cajánek M,Navrátil M,Kurasová I,Kalina J,Spunda V

更新日期：2002-01-01 00:00:00

abstract：:Cyanobacteria are photosynthetic prokaryotes and widely used for photosynthetic research as model organisms. Partly due to their prokaryotic nature, however, estimation of photosynthesis by chlorophyll fluorescence measurements is sometimes problematic in cyanobacteria. For example, plastoquinone pool is reduced in th...

journal_title：Photosynthesis research

authors： Ogawa T,Misumi M,Sonoike K

更新日期：2017-09-01 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：: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：: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：:Around 1960 experiments of Arnold and Clayton, Chance and Nishimura and Calvin and coworkers demonstrated that the primary photosynthetic electron transfer processes are not abolished by cooling to cryogenic temperatures. After a brief historical introduction, this review discusses some aspects of electron transfer in...

journal_title：Photosynthesis research

authors： Aartsma TJ,Amesz J

更新日期：1996-05-01 00:00:00

abstract：:A peptide ranging from residue 229 to 240 of the D1 protein of Photosystem (PS) II was synthesized and lanthanides were used as candidates of calcium. Fluorescence and FTIR spectroscopy were used to test the conformational adaptation after lanthanide additions. Fluorescence spectroscopy showed that the synthetic pepti...

journal_title：Photosynthesis research

authors： Wang J,Zhang LX,Liu ZL,Liang HG,Yang L,Hu XY

更新日期：1995-06-01 00:00:00

abstract：:The absorption spectra of two light harvesting complexes from higher plants, CP29 and LHC II, have been analysed in the Soret region in order to obtain a description in terms of the absorption spectra of the individual pigments. This information is of great practical use when applying spectroscopic techniques to the s...

journal_title：Photosynthesis research

authors： Croce R,Cinque G,Holzwarth AR,Bassi R

更新日期：2000-01-01 00:00:00

abstract：:The storage of light energy in chemical form through photosynthesis is the key process underlying life as we know it. To utilize photosynthates efficiently as structural materials or as fuel to drive endergonic processes, they have to be transported from where they are produced to where they are needed. In this primer...

journal_title：Photosynthesis research

authors： Knoblauch M,Peters WS

更新日期：2013-11-01 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：:Maximum photosynthetic CO2 exchange rates (Pn) of single attached leaves were determined for several cassava cultivars selected from different habitats and grown in pots outdoors at CIAT, Colombia, S.A. Pn rates were in a narrow range of 22 to 26 μmol CO2 m(-2)s(-1) for all cultivars tested when measured at high photo...

journal_title：Photosynthesis research

authors： El-Sharkawy MA,Cock JH,Held AA

更新日期：1984-09-01 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：:The 3- and 7-formyl groups of chlorophyll-d (Chl-d) and bacteriochlorophyll-e (BChl-e), respectively, were regioselectively labeled with an isotopically stable oxygen-18 (¹⁸O) atom to give 3¹-¹⁸O-labeled Chl-d and 7¹-¹⁸O-labeled BChl-e (ca. 90% ¹⁸O) by exchanging the carbonyl oxygen atoms in the presence of acidic H₂ ...

journal_title：Photosynthesis research

authors： Morishita H,Mizoguchi T,Tamiaki H

更新日期：2010-09-01 00:00:00

abstract：:In thylakoid membranes, several peptides of high MW† are present which may interfere with the study of CP1's components. Modifying Cleveland's technique [7] for limited proteolysis, we have characterized the polypeptides found in the 60 kD region. Some may result from incomplete washing of the CF1 while others come fr...

journal_title：Photosynthesis research

authors： Lagoutte B,Setif P,Duranton J

更新日期：1980-03-01 00:00:00

abstract：:A three-dimensional model of the core proteins D1 and D2, including the cofactors, that form the Photosystem II reaction centre of pea (Pisum sativum), has been generated. This model was built with a rule-based computer modelling system using the information from the crystal structures of the photosynthetic reaction c...

journal_title：Photosynthesis research

authors： Ruffle SV,Donnelly D,Blundell TL,Nugent JH

更新日期：1992-11-01 00:00:00

abstract：:The Soret absorption spectra of six synthetic rigid porphyrin dimers whose crystal structures have been determined are simulated using simple exciton theory. The objective is to test the validity of the point dipole and associated approximations; the electronic interaction parameters are thus calculated using data obt...

journal_title：Photosynthesis research

authors： Won Y,Friesner RA,Johnson MR,Sessler JL

更新日期：1989-12-01 00:00:00

abstract：:The Photosystem I reaction centre protein CP1, isolated from barley using polyacrylamide gel electrophoresis showed an EPR (Electron Paramgnetic Resonance) spectrum with the polarisation pattern AEEAAE, typical of the primary donor triplet state (3)P700, created via radical pair formation and recombination. (3)P700 co...

journal_title：Photosynthesis research

authors： Searle GF,Schaafsma TJ

更新日期：1992-06-01 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：: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：: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：: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：: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：:The light-harvesting complex (LHC) of higher plants isolated using Triton X-100 has been studied during its transformation into a monomeric form known as CPII. The change was accomplished by gradually increasing the concentration of the detergent, sodium dodecyl sulfate (SDS). Changes in the red spectral region of the...

journal_title：Photosynthesis research

authors： Gülen D,Knox R,Breton J

更新日期：1986-01-01 00:00:00