Abstract：
:Photosynthesis was well-established on the earth at least 3.5 thousand million years ago, and it is widely believed that these ancient organisms had similar metabolic capabilities to modern cyanobacteria. This requires that development of two photosystems and the oxygen evolution capability occurred very early in the earth's history, and that a presumed phase of evolution involving non-oxygen evolving photosynthetic organisms took place even earlier. The evolutionary relationships of the reaction center complexes found in all the classes of currently existing organisms have been analyzed using sequence analysis and biophysical measurements. The results indicate that all reaction centers fall into two basic groups, those with pheophytin and a pair of quinones as early acceptors, and those with iron sulfur clusters as early acceptors. No simple linear branching evolutionary scheme can account for the distribution patterns of reaction centers in existing photosynthetic organisms, and lateral transfer of genetic information is considered as a likely possibility. Possible scenarios for the development of primitive reaction centers into the heterodimeric protein structures found in existing reaction centers and for the development of organisms with two linked photosystems are presented.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Blankenship REsubject
Has Abstractpub_date
1992-01-01 00:00:00pages
91-111eissn
0166-8595issn
1573-5079journal_volume
33pub_type
杂志文章,评审abstract：:Light-induced reaction dynamics of isolated photosynthetic membranes obtained from wild-type (WT) and reaction center (RC)-subunit deletion strains SPUHK1 (an H-subunit deletion mutant) and SK Delta LM (an (L+M) deletion mutant) of the purple non-sulphur bacterium Rhodospirillum rubrum have been investigated by femtos...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-009-9520-5
更新日期：2010-03-01 00:00:00
abstract：:Oxygen evolving photosystem II particles were exposed to 100 and 250 W m(-2) white light at 20°C under aerobic, anaerobic and strongly reducing (presence of dithionite) conditions. Three types of photoinactivation processes with different kinetics could be distinguished: (1) The fast process which occurs under strongl...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00030061
更新日期：1990-01-01 00:00:00
abstract：:A non-competitive enzyme-linked immunosorbent assay (ELISA) which enables detection of as little as 0.1 ng cytochrome f in leaf extracts has been developed. No evidence for specific or non-specific interference by proteins other than cytochrome f was found. The assay was applied to a comparative study of age-related c...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00032649
更新日期：1990-04-01 00:00:00
abstract：:Recommendations are given for naming of genes coding for reaction center, antenna and electron transport proteins in green photosynthetic bacteria and heliobacteria. ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF02184142
更新日期：1994-07-01 00:00:00
abstract：:In vitro studies of the carotenoid peridinin, which is the primary pigment from the peridinin chlorophyll-a protein (PCP) light harvesting complex, showed a strong dependence on the lifetime of the peridinin lowest singlet excited state on solvent polarity. This dependence was attributed to the presence of an intramol...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-005-1447-x
更新日期：2005-11-01 00:00:00
abstract：:Treatment of lyophilized thylakoid membranes of the thermophilic cyanobacterium Synechococcus sp. with n-heptane for 6 h resulted in marked changes in the pattern of photosystem I reaction center complexes resolved by sodium dodecylsulfate-polyacrylamide gel electrophoresis. CP1-a, which consists of two large subunits...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00117671
更新日期：1987-01-01 00:00:00
abstract：:A protein was isolated from membranes of the green sulfur bacterium Chlorobium tepidum. This protein was characterized by gel electrophoresis, gel filtration, analytical ultracentrifugation and amino acid sequencing. The molecular weight of the purified protein was shown to be 26 kDa by SDS-PAGE. HPLC gelfiltration, S...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000015383.58680.56
更新日期：2004-02-01 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
pub_type： 杂志文章
doi：10.1007/s11120-013-9832-3
更新日期：2013-07-01 00:00:00
abstract：:Heliobacteria contain Type I reaction centers (RCs) and a homodimeric core, but unlike green sulfur bacteria, they do not contain an extended antenna system. Given their simplicity, the heliobacterial RC (HbRC) should be ideal for the study of a prototypical homodimeric RC. However, there exist enormous gaps in our kn...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-007-9162-4
更新日期：2007-04-01 00:00:00
abstract：:In this brief report, we provide a pictorial essay on an international conference "Photosynthesis Research for Sustainability-2013 in honor of Jalal A. Aliyev" that was held in Baku, Azerbaijan, during June 5-9, 2013 ( http://photosynthesis2013.cellreg.org/ ). We begin this report with a brief note on Jalal Aliyev, th...
journal_title：Photosynthesis research
pub_type：
doi：10.1007/s11120-013-9901-7
更新日期：2013-12-01 00:00:00
abstract：:The kinetic and spectroscopic properties of the secondary electron acceptor A1 were determined by flash absorption spectroscopy at room and cryogenic temperatures in a Photosystem I (PS I) core devoid of the iron-sulfur clusters FX, FB and FA. It was shown earlier (Warren, P.V., Golbeck, J.H. and Warden, J.T. (1993) B...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00015559
更新日期：1995-09-01 00:00:00
abstract：:Isolated mesophyll cells from darkened leaves of the C(4) plant Digitaria sanguinalis keep functional plasmodesmata that allow the free exchange of low molecular mass compounds with the surrounding medium. This cell suspension system has been used to measure C(4) PEPC activity in situ using a spectrophotometric assay....
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000017179.31351.f0
更新日期：2004-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00039172
更新日期：1992-08-01 00:00:00
abstract：:Photosynthetic organisms normally endeavor to optimize the efficiency of their light-harvesting apparatus. However, here we describe two bacterial isolates belonging to the genera Allochromatium and Thiocapsa that demonstrate a novel adaptation by optimizing their external growth conditions at the expense of photosynt...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9246-1
更新日期：2008-02-01 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
pub_type： 杂志文章
doi：10.1007/s11120-020-00815-x
更新日期：2021-01-11 00:00:00
abstract：:The role of the ferredoxin:thioredoxin system in the reversible light activation of chloroplast enzymes by thiol-disulfide interchange with thioredoxins is now well established. Recent fruitful collaboration between biochemists and structural biologists, reflected by the shared authorship of the paper, allowed to solv...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/B:PRES.0000017194.34167.6d
更新日期：2004-01-01 00:00:00
abstract：:The possible origins of the different fluorescence decay components in green plants are discussed in terms of a random walk and Butler's bipartite model. The interaction of the excitations with the photosystem II reaction centers and, specifically, the regeneration of theses excitations by charge recombination within ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00118288
更新日期：1986-01-01 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：:The authors present a study of the fluorescence and absorbance transients occurring in whole cells of purple nonsulfur bacterium Rhodobacter sphaeroides on the millisecond timescale under pulsed actinic illumination. The fluorescence induction curve is interpreted in terms of combination of effects of redox changes in...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-010-9569-1
更新日期：2010-08-01 00:00:00
abstract：:Photosynthetic electron transfer has been examined in whole cells, isolated membranes and in partially purified reaction centers (RCs) of Roseicyclus mahoneyensis, strain ML6 and Porphyrobacter meromictius, strain ML31, two species of obligate aerobic anoxygenic phototrophic bacteria. Photochemical activity in strain ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9718-1
更新日期：2012-02-01 00:00:00
abstract：:In this paper we compared the pigment composition, photochemical activity, chloroplast ultrastructure, thylakoid membrane polypeptide composition and ribosomal content of wild-type and seven light-sensitive mutants of Chlamydomonas reinhardii.All the mutants had low chlorophyll and carotenoid content compared to wild-...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00032261
更新日期：1982-01-01 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
pub_type： 杂志文章
doi：10.1007/s11120-019-00707-9
更新日期：2020-12-01 00:00:00
abstract：:A detailed analysis of the periplasmic electron carriers of the photosynthetic bacterium Ectothiorhodospira sp. has been performed. Two low mid-point redox potential electron carriers, cytochrome c' and cytochrome c, are detected. A high potential iron-sulfur protein is the only high mid-point redox potential electron...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1006486307473
更新日期：2000-01-01 00:00:00
abstract：:The interaction of PsaC with the core heterodimer of Photosystem 1 was studied in wild type Synechocystis sp. PCC 6803 and the site-directed mutant R561E of PsaB. The mutant reaction center was much less stable in urea and the functional reconstitution of the mutant core using PsaC was impaired. However, the extent of...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00018261
更新日期：1994-12-01 00:00:00
abstract：:Solubilisation of thylakoid membranes from young leaves of Pisum sativum in the presence of Triton X-100 resulted in an almost complete loss of quenching of light-harvesting chlorophyll-protein (LHCP) fluorescence, as measured at 77°K. There were concomitant changes in the kinetics of light-saturation curves of electr...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00037130
更新日期：1986-01-01 00:00:00
abstract：:The three major chlorophyll-proteins of spinach chloroplasts were solubilized with digitonin and isolated by electrophoresis with deoxycholate. The gel bands were identified from their absorption and fluorescence spectra measured at 77 K. The slowest moving band was a Photosystem I complex (CPI); the second, a Photosy...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00054145
更新日期：1983-12-01 00:00:00
abstract：:Illumination of the dark-incubated cells of Synechocystis PCC6803 caused recovery of both respiratory activity of oxygen uptake and PS I-cyclic electron flow, which was monitored by the dark reduction of P700(+) in the presence of DCMU after a 50 ms pulse light (MT) under background far-red light, but the effects were...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1017946524199
更新日期：2001-01-01 00:00:00
abstract：:Marine macroalgae possess a range of mechanisms to increase the availability of CO2 for fixation by ribulose-1,5-bisphosphate carboxylase/oxygenase. Of these, possession of a periplasmic or external carbonic anhydrase and the ability to use bicarbonate ions is widely distributed. The mechanisms of carbon acquisition w...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-014-0003-y
更新日期：2014-09-01 00:00:00
abstract：:Sulfur is one of the critical elements in living matter, as it participates in several structural, metabolic and catalytic activities. Photosynthesis is an important process that entails the use of sulfur during both the light and carbon reactions. Nearly half of global photosynthetic carbon fixation is carried out by...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-005-3250-0
更新日期：2005-12-01 00:00:00
abstract：:The filamentous nitrogen-fixing cyanobacterium, Anabaena sp. strain PCC 7120 was found to tolerate very high doses of 60Co-gamma radiation or prolonged desiccation. Post-stress, cells remained intact and revived all the vital functions. A remarkable capacity to repair highly disintegrated genome and recycle the damage...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-013-9936-9
更新日期：2013-10-12 00:00:00
