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 plant had a low specific activity, exhibited lower KM for glycolate, and required a lower pH for maximal activity, compared to the C3 enzyme. The enzyme from the C4 species oxidized glyoxylate at <10% of the rate with glycolate, while the GO from the C3 plant oxidized glyoxylate at a rate of about 35 to 40% of that with glycolate. The sensitivity of GO from C4 plant to α-hydroxypyridinemethane sulfonate, 2-hydroxy-3-butynoate and other inhibitors was less than that of the enzyme from C3 source. The properties of GO fromParthenium hysterophorus, were similar to those of the enzyme fromPisum sativum. The characteristics of glycolate oxidase from leaves of a C4 plant,Amaranthus hypochondriacus are different from those of the C3 species or the C3-C4 intermediate.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Devi MT,Rajagopalan AV,Raghavendara ASdoi
10.1007/BF02184284subject
Has Abstractpub_date
1996-03-01 00:00:00pages
231-8issue
3eissn
0166-8595issn
1573-5079journal_volume
47pub_type
杂志文章abstract：:The early suggestion by Lozier and Butler (Photochem. Photobiol. 17, 133-137 (1973)) that EPR Signal II arises from radicals associated with the water-splitting process in PSII has been confirmed and extended over the intervening years. Recent work has identified the Signal II radicals, [Formula: see text] and [Formul...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00118308
更新日期：1986-01-01 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
pub_type： 杂志文章
doi：10.1007/s11120-005-9004-1
更新日期：2006-03-01 00:00:00
abstract：:Two-component regulatory systems that respond to changes in redox potential have recently been discovered in bacteria. 'Redox sensors' are defined as electron carriers which initiate control of gene expression upon oxidation or reduction. 'Redox response regulators' are defined as DNA-binding proteins which modify gen...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00016274
更新日期：1993-05-01 00:00:00
abstract：:The previous work in our lab showed that the spinach chloroplast ATP synthase epsilon mutant with 3 amino acid residues deleted from the N-terminus had much lower ability to inhibit ATP hydrolysis and block proton leakage in comparison to a mutant with 1 or 2 residues deleted from the N-terminus. The present study aim...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-004-6554-6
更新日期：2005-01-01 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
pub_type： 杂志文章,评审
doi：10.1007/s11120-006-9121-5
更新日期：2007-07-01 00:00:00
abstract：:Light energy harvested by the pigments in Photosystem I (PSI) is used for charge separation in the reaction center (RC), after which the positive charge resides on a special chlorophyll dimer called P700. In studies on the PSI trapping kinetics, P700(+) is usually chemically reduced to re-open the RCs. So far, the inf...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9671-z
更新日期：2012-03-01 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
pub_type： 杂志文章
doi：10.1007/s11120-007-9131-y
更新日期：2006-12-01 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
pub_type： 杂志文章,评审
doi：10.1007/s11120-013-9867-5
更新日期：2013-11-01 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
pub_type： 杂志文章
doi：10.1007/s11120-004-1061-3
更新日期：2004-01-01 00:00:00
abstract：:Two green algal species, Chlamydomonas reinhardtii and Scenedesmus obliquus, exhibited a relative maximum during the decay of luminescence, when adapted to low CO2 conditions that was not observed in high CO2 adapted cells.From the kinetics of transient changes in the level of dark fluorescence, after illumination and...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00034857
更新日期：1990-03-01 00:00:00
abstract：:Joan Mary Anderson, known to most people as Jan, was born on May 12, 1932 in Dunedin, New Zealand. She died on August 28, 2015 in Canberra, Australia. To celebrate her life, we present here a brief biography, some comments on her discoveries in photosynthesis during a career spanning more than half a century, and remi...
journal_title：Photosynthesis research
pub_type： 传,历史文章,杂志文章
doi：10.1007/s11120-016-0287-1
更新日期：2016-08-01 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
pub_type： 杂志文章
doi：10.1007/s11120-010-9590-4
更新日期：2010-09-01 00:00:00
abstract：:The dependence on temperature of tryptophan fluorescence lifetime in trimeric photosystem I (PSI) complexes from cyanobacteria Synechocystis sp. PCC 6803 during the heating of pre-frozen to - 180 °C in the dark or in the light-activated preparations has been studied. Fluorescence lifetime in samples frozen in the ligh...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-018-0595-8
更新日期：2019-03-01 00:00:00
abstract：:We investigated several photosynthetic parameters of a virescent mutant of durum wheat and of its wild-type. Electron transport rate to ferricyanide was the same in the two genotypes when expressed on leaf area basis while O2 evolution of the leaf tissue in saturating light and CO2 was slightly higher in the yellow ge...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00033365
更新日期：1989-08-01 00:00:00
abstract：:The role of photosynthetic pigments in the development of separation methods in biochemistry during the period 1900-1980 is described beginning with M. Tswett who introduced separation of chlorophylls and carotenoids on columns and coined the term chromatography in 1906. In Uppsala, T. Svedberg developed the ultracent...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1024944606930
更新日期：2003-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00032264
更新日期：1987-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00039484
更新日期：1988-04-01 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
pub_type： 杂志文章
doi：10.1007/BF00035944
更新日期：1992-05-01 00:00:00
abstract：:Cross-reconstitution of the extrinsic proteins and Photosystem II (PS II) from a green alga, Chlamydomonas reinhardtii, and a higher plant,Spinacia oleracea, was performed to clarify the differences of binding properties of the extrinsic proteins between these two species of organisms. (1) Chlamydomonas PsbP and PsbQ ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-004-7760-y
更新日期：2005-06-01 00:00:00
abstract：:Photosystem II (PSII) catalyzes the oxidation of water to O2 at the manganese-containing, oxygen-evolving complex (OEC). Photoexcitation of PSII results in the oxidation of the OEC; four sequential oxidation reactions are required for the generation and release of molecular oxygen. Therefore, with flash illumination, ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9147-3
更新日期：2007-06-01 00:00:00
abstract：:The temperature dependence of the partial reactions leading to turn-over of the UQH2:cyt c 2 oxidoreductase of Rhodobacter sphaeroides have been studied. The redox properties of the cytochrome components show a weak temperature dependence over the range 280-330 K, with coefficients of about 1 m V per degree; our resul...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00114768
更新日期：1989-01-01 00:00:00
abstract：:The main objective of the present review is to provide a compilation of published data of the effects of several climatic conditions on Rubisco, particularly its activity, state of activation, and concentration, and its influence on leaf gas exchange and photosynthesis. The environmental conditions analyzed include dr...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-013-9861-y
更新日期：2013-11-01 00:00:00
abstract：:Green sulfur bacteria and heliobacteria are strictly anaerobic phototrophs that have homodimeric type 1 reaction center complexes. Within these complexes, highly reducing substances are produced through an initial charge separation followed by electron transfer reactions driven by light energy absorption. In order to ...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-009-9521-4
更新日期：2010-06-01 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
pub_type： 杂志文章
doi：10.1007/BF02184154
更新日期：1994-07-01 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
pub_type： 杂志文章
doi：10.1007/BF00033716
更新日期：1991-05-01 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
pub_type： 杂志文章
doi：10.1007/s11120-015-0209-7
更新日期：2016-05-01 00:00:00
abstract：:Cyanobacteria exhibit a novel form of non-photochemical quenching (NPQ) at the level of the phycobilisome. NPQ is a process that protects photosystem II (PSII) from possible highlight-induced photo-damage. Although significant advancement has been made in understanding the NPQ, there are still some missing details. Th...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-018-0498-8
更新日期：2018-08-01 00:00:00
abstract：:Tropical plants are sensitive to chilling temperatures above zero but it is still unclear whether photosystem I (PSI) or photosystem II (PSII) of tropical plants is mainly affected by chilling temperatures. In this study, the effect of 4 degrees C associated with various light densities on PSII and PSI was studied in ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-010-9539-7
更新日期：2010-03-01 00:00:00
abstract：:The chloroplast genome of the highly neutral-lipid-producing marine pennate diatom Fistulifera sp. strain JPCC DA0580 was fully sequenced using high-throughput pyrosequencing. The general features and gene content were compared with three other complete diatom chloroplast genomes. The chloroplast genome is 134,918 bp ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9622-8
更新日期：2011-09-01 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
pub_type： 杂志文章
doi：10.1007/s11120-013-9963-6
更新日期：2014-09-01 00:00:00
