Abstract：
:The content and composition of pigments and acyl lipids (monogalactosyl diacylglycerol, digalactosyl diacylglycerol and phosphatidyl glycerol) have been investigated in developing chloroplasts isolated from successive 2-cm sections along the leaves of wheat seedlings grown either under 100, 30 or 3 W·m(-2). In all examined stages of plastid development chlorophyll a/b and chlorophyll/carotenoid ratios were higher with increasing irradiance, whereas chlorophyll content expressed on fresh weight basis gradually decreased.Concentrations of monogalactosyl diacylglycerol, digalactosyl diacylglycerol and phosphatidyl glycerol decreased per chlorophyll unit with increasing plastid maturity. The higher was the light intensity applied during plant growth, the higher were galactolipid and phosphatidyl glycerol contents in developing chloroplasts. During plastid development the percentage of α-linolenic acid markedly increased in total and individual acyl lipids. Under high light conditions, the accumulation of this fatty acid proceeded more rapidly. Significantly higher proportion of α-linolenic acid was found in acyl lipid fraction of chloroplasts differentiating in high light grown plants, than in those from plants exposed to lower light intensities. The differences in the double bond index may indicate higher fluidity of thylakoid membranes in sun-type chloroplasts.Trans-3Δ-hexadecenoic acid, virtually absent in the youngest plastids, was found in much higher concentration (per chlorophyll unit and as mol % of phosphatidyl glycerol fatty acids) in chloroplasts developing at high light conditions.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Lechowicz W,Maternicka K,Faltynowicz M,Poskuta Jdoi
10.1007/BF00035244subject
Has Abstractpub_date
1986-01-01 00:00:00pages
133-47issue
2eissn
0166-8595issn
1573-5079journal_volume
8pub_type
杂志文章abstract：:The effects of Fe resupply to Fe-deficient plants have been investigated in hydroponically-grown sugar beet. In the short-term (24 h) after Fe resupply, major changes were observed, although de novo chlorophyll (Chl) synthesis had not begun yet. Approximately 50% of the zeaxanthin was converted into violaxanthin, wher...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000011919.35309.5e
更新日期：2004-01-01 00:00:00
abstract：:We have compared the properties of a mutant of barley lacking Photosystem I (viridis-zb (63) ) with the corresponding wild type using modulated fluorescence measurements. The mutant showed two unexpected characteristics. Firstly, there was a slow decline in the fluorescence signal in the light which was dependent on t...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00016561
更新日期：1993-03-01 00:00:00
abstract：:Photosynthetic acclimation varies among species, which likely reveals variations at the biochemical level in the pathways that constitute carbon assimilation and energy transfer. Local adaptation and phenotypic plasticity affect the environmental response of photosynthesis. Phenotypic plasticity allows for a wide arra...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-013-9816-3
更新日期：2014-02-01 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
pub_type： 杂志文章
doi：10.1007/BF00019041
更新日期：1994-04-01 00:00:00
abstract：:A time line of important research relating to anoxygenic photosynthetic organisms is presented. The time line includes discoveries of organisms, metabolic capabilities, molecular complexes and genetic systems. It also pinpoints important milestones in our understanding of the structure, function, organization, assembl...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000030448.24695.ec
更新日期：2004-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00014592
更新日期：1994-03-01 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
pub_type： 杂志文章
doi：10.1007/s11120-014-0067-8
更新日期：2015-02-01 00:00:00
abstract：:In appreciation of his contribution to the Photosystsem II research and commemoration of the book Photosystem II: The Light-Driven Water-Plastoquinone Oxido-Reductase, co-edited with Kimiyuki Satoh, I present here some of my recollections of Thomas John Wydrzynski and by several others with whom he has associated over...
journal_title：Photosynthesis research
pub_type： 传,历史文章,杂志文章
doi：10.1007/s11120-008-9341-y
更新日期：2008-10-01 00:00:00
abstract：:C4 photosynthesis is a complex trait that has a high degree of natural variation, involving anatomical and biochemical changes relative to the ancestral C3 state. It has evolved at least 66 times across a variety of lineages and the evolutionary route from C3 to C4 is likely conserved but not necessarily genetically i...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-013-9872-8
更新日期：2014-02-01 00:00:00
abstract：:A high CO2-requiring mutant of Synechocystis PCC6803 (G3) capable of Ci transport but unable to utilize the intracellular Ci pool for photosynthesis was constructed. A DNA clone of 6.1 kbp that transforms the G3 mutant to the wild-type phenotype was isolated from a Synechocystis PCC6803 genomic library. Complementatio...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00029385
更新日期：1994-02-01 00:00:00
abstract：:A proton electrochemical potential across the membranes of photosynthetic purple bacteria is established by a light-driven proton pump mechanism: the absorbed light in the reaction center initiates electron transfer which is coupled to the vectorial displacement of protons from the cytoplasm to the periplasm. The stoi...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF02185435
更新日期：1993-07-01 00:00:00
abstract：:Currently, relatively few proteomics studies of chloroplast have been published, but the field has just started emerging and is likely to develop more rapidly in the future. While the complex membrane structure of the chloroplast makes it difficult to study its entire proteome by global approaches, proteomics has cons...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000006914.52898.67
更新日期：2003-01-01 00:00:00
abstract：:The factors governing quinone protein binding in the photosynthetic bacterium Rps. viridis are investigated via use of empirical intermolecular energy calculations using the GRID method (PJ Goodford (1985) J Med Chem 28: 849-854). A probe atom corresponding to a carbonyl oxygen atom is used to investigate regions exhi...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00027142
更新日期：1994-01-01 00:00:00
abstract：:A simple approach to determine CO2/O2 specificity factor (τ) of ribulose 1,5-bisphosphate carboxylase/oxygenase is described. The assay measures the amount of CO2 fixation at varying [CO2]/[O2] ratios after complete consumption of ribulose 1,5-bisphosphate (RuBP). Carbon dioxide fixation catalyzed by the carboxylase w...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00029463
更新日期：1995-01-01 00:00:00
abstract：:Phycobilisomes, comprised of both chromophoric (phycobiliproteins) and non-chromophoric (linker polypeptides) proteins, are light-harvesting complexes present in the prokaryotic cyanobacteria and the eukaryotic red algae. Many cyanobacteria exhibit complementary chromatic adaptation, a process which enables these orga...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00047680
更新日期：1988-07-01 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
pub_type： 杂志文章
doi：10.1023/A:1021237026500
更新日期：2002-01-01 00:00:00
abstract：:The effect of temperatures between 15 and 50°C on the light utilization efficiency of leaf net photosynthesis was studied in two C4 grasses and two C3 legumes. In the legumes, light utilization efficiency (μ mol of CO2 fixed per μ Einstein of incident photosynthetic quantum flux) declined linearly with temperature bet...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00034267
更新日期：1981-12-01 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
pub_type： 杂志文章
doi：10.1007/BF00040708
更新日期：1982-06-01 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
pub_type： 杂志文章
doi：10.1007/BF00032585
更新日期：1995-08-01 00:00:00
abstract：:Plants are exposed to a temporally and spatially heterogeneous environment, and photosynthesis is well adapted to these fluctuations. Understanding of the complex, non-linear dynamics of photosynthesis in fluctuating light requires novel-modeling approaches that involve not only the primary light and dark biochemical ...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-007-9178-9
更新日期：2007-07-01 00:00:00
abstract：:Nonlinear optical responses of bacteriochlorophyll a (BChl a) were investigated by means of the three-pulse four-wave mixing (FWM) technique under the resonant excitation into the Q ( y ) band. The experimental results are explained by a theoretical model calculation including the Brownian oscillation mode of the solv...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9266-x
更新日期：2008-02-01 00:00:00
abstract：:Sulphoquinovosyldiacylglycerol is a negatively charged lipid which exists in the thylakoid membrane. It is proposed that a large proportion of this acidic lipid does not form a part of the bulk lipid matrix but is closely associated with protein complexes where it is tightly bound and participates in either optimising...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00029747
更新日期：1986-01-01 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：:Modified forms of the D1 protein with deletions in lumen-exposed regions, were constructed in the cyanobacterium Synechocystis 6803 using site-directed mutagenesis. Integration and stability of the mutated D1 proteins in the thylakoid membrane were studied by immunoblot and pulse-chase analyses. It was found that in Δ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00117663
更新日期：1996-08-01 00:00:00
abstract：:Moderate heat stress and fluctuating light are typical conditions in summer in tropical and subtropical regions. This type of stress can cause photodamage to photosystems I and II (PSI and PSII). However, photosynthetic responses to the combination of heat and fluctuating light in young leaves are little known. In thi...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-020-00754-7
更新日期：2020-06-01 00:00:00
abstract：:Chlorosomes, the light-harvesting apparatus of green bacteria, are a unique antenna system, in which pigments are organized in aggregates rather than associated with proteins. Isolated chlorosomes from the green sulphur bacterium Chlorobium tepidum contain 10 surface-exposed proteins. Treatment of chlorosomes from Chl...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-005-3757-4
更新日期：2005-11-01 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
pub_type： 杂志文章,评审
doi：10.1007/s11120-009-9454-y
更新日期：2009-08-01 00:00:00
abstract：:The linear dichroism of Photosystem I particles containing 10 chlorophylls per P700 has been investigated at 10 K. The particles were oriented by uniaxial squeezing of polyacrylamide gels. The oxidation state of P700 was altered either by incubation of the gels with redox mediators or by low temperature illumination. ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00047172
更新日期：1989-07-01 00:00:00
abstract：:A chlorosome is an antenna complex located on the cytoplasmic side of the inner membrane in green photosynthetic bacteria that contains tens of thousands of self-assembled bacteriochlorophylls (BChls). Green bacteria are known to incorporate various esterifying alcohols at the C-17 propionate position of BChls in the ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-014-0017-5
更新日期：2014-10-01 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
pub_type： 杂志文章
doi：10.1007/BF00033446
更新日期：1992-11-01 00:00:00
