1
|
Borisova-Mubarakshina MM, Tsygankov AA, Tomo T, Allakhverdiev SI, Eaton-Rye JJ, Govindjee G. International conference on "Photosynthesis and Hydrogen Energy Research for Sustainability-2019": in honor of Tingyun Kuang, Anthony Larkum, Cesare Marchetti, and Kimiyuki Satoh. PHOTOSYNTHESIS RESEARCH 2020; 146:5-15. [PMID: 31758403 DOI: 10.1007/s11120-019-00687-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
The 10th International Conference on «Photosynthesis and Hydrogen Energy Research for Sustainability-2019» was held in honor of Tingyun Kuang (China), Anthony Larkum (Australia), Cesare Marchetti (Italy), and Kimiyuki Satoh (Japan), in St. Petersburg (Russia) during June 23-28, 2019. The official conference organizers from the Russian side were from the Institute of Basic Biological Problems of the Russian Academy of Sciences (IBBP RAS), Russian Society for Photobiology (RSP), and the Komarov Botanical Institute of the Russian Academy of Sciences ([K]BIN RAS). This conference was organized with the help of Monomax Company, a member of the International Congress Convention Association (ICCA), and was supported by the Ministry of Education and Science of the Russian Federation. Here, we provide a brief description of the conference, its scientific program, as well as a brief introduction and key contributions of the four honored scientists. Further, we emphasize the recognition given, at this conference, to several outstanding young researchers, from around the World, for their research in the area of our conference. A special feature of this paper is the inclusion of photographs provided by one of us (Tatsuya Tomo). Lastly, we urge the readers to watch for information on the next 11th conference on "Photosynthesis and Hydrogen Energy Research for Sustainability-2021," to be held in Bulgaria in 2021.
Collapse
Affiliation(s)
| | - Anatoly A Tsygankov
- Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region, Russia, 142290
| | - Tatsuya Tomo
- Department of Biology, Faculty of Science, Tokyo University of Science, Kagurazaka 1-3, Shinjuku-Ku, Tokyo, 162-8601, Japan
| | - Suleyman I Allakhverdiev
- Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region, Russia, 142290
- K.A. Timiryazev. Institute of Plant Physiology, Russian Academy of Sciences, 35 Botanicheskaya St, Moscow, Russia, 127276
| | - Julian J Eaton-Rye
- Department of Biochemistry, University of Otago, Dunedin, 9054, New Zealand
| | - Govindjee Govindjee
- Department of Plant Biology, Department of Biochemistry, and Center of Biophysics & Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
| |
Collapse
|
2
|
Oxidation of iodide with a mononuclear manganese(IV) complex ion: Mechanistic investigation of autocatalytic behaviour. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
3
|
Baranov S, Haddy A. An enzyme kinetics study of the pH dependence of chloride activation of oxygen evolution in photosystem II. PHOTOSYNTHESIS RESEARCH 2017; 131:317-332. [PMID: 27896527 DOI: 10.1007/s11120-016-0325-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
Oxygen evolution by photosystem II (PSII) involves activation by Cl- ion, which is regulated by extrinsic subunits PsbQ and PsbP. In this study, the kinetics of chloride activation of oxygen evolution was studied in preparations of PSII depleted of the PsbQ and PsbP subunits (NaCl-washed and Na2SO4/pH 7.5-treated) over a pH range from 5.3 to 8.0. At low pH, activation by chloride was followed by inhibition at chloride concentrations >100 mM, whereas at high pH activation continued as the chloride concentration increased above 100 mM. Both activation and inhibition were more pronounced at lower pH, indicating that Cl- binding depended on protonation events in each case. The simplest kinetic model that could account for the complete data set included binding of Cl- at two sites, one for activation and one for inhibition, and four protonation steps. The intrinsic (pH-independent) dissociation constant for Cl- activation, K S, was found to be 0.9 ± 0.2 mM for both preparations, and three of the four pK as were determined, with the fourth falling below the pH range studied. The intrinsic inhibition constant, K I, was found to be 64 ± 2 and 103 ± 7 mM for the NaCl-washed and Na2SO4/pH7.5-treated preparations, respectively, and is considered in terms of the conditions likely to be present in the thylakoid lumen. This enzyme kinetics analysis provides a more complete characterization of chloride and pH dependence of O2 evolution activity than has been previously presented.
Collapse
Affiliation(s)
- Sergei Baranov
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, USA
| | - Alice Haddy
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, 27402, USA.
| |
Collapse
|
4
|
Location of chloride and its possible functions in oxygen-evolving photosystem II revealed by X-ray crystallography. Proc Natl Acad Sci U S A 2009; 106:8567-72. [PMID: 19433803 PMCID: PMC2688974 DOI: 10.1073/pnas.0812797106] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The chloride ion, Cl(-), is an essential cofactor for oxygen evolution of photosystem II (PSII) and is closely associated with the Mn(4)Ca cluster. Its detailed location and function have not been identified, however. We substituted Cl(-) with a bromide ion (Br(-)) or an iodide ion (I(-)) in PSII and analyzed the crystal structures of PSII with Br(-) and I(-) substitutions. Substitution of Cl(-) with Br(-) did not inhibit oxygen evolution, whereas substitution of Cl(-) with I(-) completely inhibited oxygen evolution, indicating the efficient replacement of Cl(-) by I(-). PSII with Br(-) and I(-) substitutions were crystallized, and their structures were analyzed. The results showed that there are 2 anion-binding sites in each PSII monomer; they are located on 2 sides of the Mn(4)Ca cluster at equal distances from the metal cluster. Anion-binding site 1 is close to the main chain of D1-Glu-333, and site 2 is close to the main chain of CP43-Glu-354; these 2 residues are coordinated directly with the Mn(4)Ca cluster. In addition, site 1 is located in the entrance of a proton exit channel. These results indicate that these 2 Cl(-) anions are required to maintain the coordination structure of the Mn(4)Ca cluster as well as the proposed proton channel, thereby keeping the oxygen-evolving complex fully active.
Collapse
|
5
|
Satoh K. Protein-pigments and the photosystem II reaction center: a glimpse into the history of research and reminiscences. PHOTOSYNTHESIS RESEARCH 2008; 98:33-42. [PMID: 18780160 DOI: 10.1007/s11120-008-9348-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Accepted: 08/03/2008] [Indexed: 05/06/2023]
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 version of the personal review on the latter topic has already appeared in this journal (Satoh Photosynth Res 76:233-240, 2003).
Collapse
|
6
|
Enami I, Shen JR. A brief introduction of Kimiyuki Satoh. PHOTOSYNTHESIS RESEARCH 2008; 98:7-11. [PMID: 18690551 DOI: 10.1007/s11120-008-9338-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Accepted: 07/19/2008] [Indexed: 05/26/2023]
Abstract
In this Special Issue of Photosynthesis Research (Structure, Function, and Dynamics of Photosystem II) in honor of Kimiyuki Satoh and Thomas J. Wydrzynski, we present here a brief introduction to the scientific career and achievements of Kimiyuki Satoh, a great scientist with numerous important contributions in photosynthesis research, especially in the field of photosystem II.
Collapse
Affiliation(s)
- Isao Enami
- Department of Biology, Faculty of Science, Tokyo University of Science, Tokyo, Japan.
| | | |
Collapse
|
7
|
Bryson DI, Doctor N, Johnson R, Baranov S, Haddy A. Characteristics of Iodide Activation and Inhibition of Oxygen Evolution by Photosystem II. Biochemistry 2005; 44:7354-60. [PMID: 15882074 DOI: 10.1021/bi047475d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Oxygen evolution by photosystem II (PSII) is activated by chloride and other monovalent anions. In this study, the effects of iodide on oxygen evolution activity were investigated using PSII-enriched membrane fragments from spinach. In the absence of Cl(-), the dependence of oxygen evolution activity on I(-) concentration showed activation followed by inhibition in both intact PSII and NaCl-washed PSII, which lacked the PsbP and PsbQ subunits. Using a substrate inhibition model, the range of values of the Michaelis constant K(M) in intact PSII (0.5-1.5 mM) was smaller than that in NaCl-washed PSII (1.5-5 mM), whereas values of the inhibition constant K(I) in intact PSII (9-17 mM) were larger than those in NaCl-washed PSII (1-4 mM). Studies of I(-) inhibition of Cl(-)-activated oxygen evolution in intact PSII revealed that I(-) was primarily an uncompetitive inhibitor, with uncompetitive constant K(i)' = 37 mM and Cl(-)-competitive constant K(i) > 200 mM. This result indicated that the activating Cl(-) must be bound for inhibition to take place, which is consistent with the substrate inhibition model for I(-) activation. The S(2) state multiline and g = 4.1 EPR signals in NaCl-washed PSII were examined in the presence of 3 and 25 mM NaI, corresponding to I(-)-activated and I(-)-inhibited conditions, respectively. The two S(2) state signals were observed at both I(-) concentrations, indicating that I(-) substitutes for Cl(-) in formation of the signals and that advancement to the S(2) state was not prevented by high I(-) concentrations. A model is presented that incorporates the results of this study, including the action of both chloride and iodide.
Collapse
Affiliation(s)
- David I Bryson
- Department of Chemistry and Biochemistry, University of North Carolina-Greensboro, Greensboro, North Carolina 27402, USA
| | | | | | | | | |
Collapse
|
8
|
Affiliation(s)
- R P Pesavento
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | | |
Collapse
|
9
|
Satoh K, Fujii Y, Aoshima T, Tado T. Immunological identification of the polypeptide bands in the SDS-polyacrylamide gel electrophoresis of photosystem II preparations. FEBS Lett 2001. [DOI: 10.1016/0014-5793(87)80746-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
10
|
A comparative study of the reduction of EPR signal IIslowby iodide and the iodo-labeling of the D2-protein in photosystem II. FEBS Lett 2001. [DOI: 10.1016/0014-5793(87)80321-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
11
|
Takahashi Y, Satoh K, Itoh S. Silicomolybdate substitutes for the function of a primary electron acceptor and stabilizes charge separation in the photosystem II reaction center complex. FEBS Lett 2001. [DOI: 10.1016/0014-5793(89)81076-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
12
|
Abstract
The protein environment can dramatically affect the EPR line shape of tyrosine radicals. The alterations can be caused by: (1) a change in methylene geometry caused by different protein steric constraints; (2) a change in spin density caused by a change in protein environment; or (3) covalent modification of the tyrosine. Any or all of these effects may also be important, in some cases, in control of oxidation potential and chemical reactivity. The new signal that has been observed in the YF161D1 PS II mutant has an approximate 1:3:3:1 lineshape. There is no precedent for a 1:3:3:1 EPR signal from a tyrosine in a powder sample. However, as described above, given the diversity of signals from tyrosine radicals, it is impossible to exclude the possibility that the signal arises from tyrosine on this basis.
Collapse
Affiliation(s)
- B A Barry
- Department of Biochemistry, University of Minnesota, St. Paul 55108
| |
Collapse
|
13
|
|
14
|
Sabat SC, Babu TS, Mohanty P. N,N-diethylhydroxylamine: a new electron donor to photosystem II. Biochem Biophys Res Commun 1991; 179:1127-33. [PMID: 1898394 DOI: 10.1016/0006-291x(91)91937-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Diethylhydroxylamine, when added to beet spinach thylakoid membranes in the reaction mixture enhanced both photosystem II mediated dichlorophenolindophenol photoreduction and whole chain electron transport supported by methyl viologen. Diethylhydroxylamine supports dichlorophenolindophenol photoreduction when oxygen evolving complex is inactivated by hydroxylamine washings. All the electron transport assays were found to be highly sensitive to diuron, indicating that diethylhydroxylamine donates electrons to the photosystem II before the herbicide binding site. The stimulation of the photochemical activity by diethylhydroxylamine is not solely due to its action as an uncoupler. It was also observed that the action of diethylhydroxylamine was not altered by preincubations of thylakoids in light in the presence of diethylhydroxylamine. Also, thylakoid membranes did not lose their benzoquinone Hill activity by the pre-incubations with diethylhydroxylamine either in light or in dark. Thus, unlike the photosystem II electron donor, hydroxylamine, diethylhydroxylamine was found to donate electrons without the inactivations of oxygen evolving complex. It is suggested that diethylhydroxylamine is a useful electron donor to the photosystem II.
Collapse
Affiliation(s)
- S C Sabat
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | | | | |
Collapse
|
15
|
Papageorgiou GC, Lagoyanni T. Interactions of iodide ions with isolated photosystem 2 particles. Arch Biochem Biophys 1991; 285:339-43. [PMID: 1897936 DOI: 10.1016/0003-9861(91)90369-t] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The effects of I- ions on O2 evolution by photosystem 2 particles, which were depleted of the 18-kDa and the 23-kDa extrinsic proteins of the O2 evolution complex by NaCl washing (dPS2 particles) were examined. In the absence of Cl- (incompetent dPS2) I- stimulated O2 evolution up to 3-6 mM, depending on the associated cation, and inhibited it at higher concentrations. In the presence of Cl- (competent dPS2), I- was inhibitory at all concentrations. The inhibition was reversible, it occurred at a site preceding Tyrz (Tyr residue mediating electron transfer from H2O to photosystem 2), and it interfered noncompetitively with the reactivation of incompetent dPS2 with Cl-. Furthermore, the organic salts tetrabutyl ammonium iodide and tetraphenyl phosphonium iodide proved to be stronger inhibitors than the inorganic NaI. This is interpreted as an indication of a negatively charged surface, situated behind a hydrophobic permeability barrier. Permeant organic cations, being better compensators of the inner surface charge than Na+, are also more apt in facilitating access of the I- ions to the inhibitory site in the vicinity of Tyrz.
Collapse
Affiliation(s)
- G C Papageorgiou
- National Research Center Demokritos, Institute of Biology, Athens, Greece
| | | |
Collapse
|
16
|
Takahashi Y, Satoh K. Identification of the photochemically iodinated amino-acid residue on Dl-protein in the Photosystem II core complex by peptide mapping analysis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1989. [DOI: 10.1016/s0005-2728(89)80414-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
17
|
Assignment of histidine residues in Dl protein as possible ligands for functional manganese in photosynthetic water-oxidizing complex. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1989. [DOI: 10.1016/s0005-2728(89)80433-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
18
|
Vincent JB, Christou G. Higher Oxidation State Manganese Biomolecules. ADVANCES IN INORGANIC CHEMISTRY 1989. [DOI: 10.1016/s0898-8838(08)60196-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
19
|
Debus RJ, Barry BA, Sithole I, Babcock GT, McIntosh L. Directed mutagenesis indicates that the donor to P+680 in photosystem II is tyrosine-161 of the D1 polypeptide. Biochemistry 1988; 27:9071-4. [PMID: 3149511 DOI: 10.1021/bi00426a001] [Citation(s) in RCA: 326] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Photosystem II contains two redox-active tyrosines. One of these, YZ, reduces the reaction center chlorophyll, P680, and transfers the oxidizing equivalent to the oxygen-evolving complex. The second, YD, has a long-lived free radical state of unknown function. We recently established that YD is Tyr-160 of the D2 polypeptide by site-directed mutagenesis of a psbD gene in the unicellular cyanobacterium Synechocystis 6803 [Debus, R. J., Barry, B. A., Babcock, G. T., & McIntosh, L. (1988) Proc. Natl. Acad. Sci. U.S.A. 85, 427-430]. YZ is most likely the symmetry-related Tyr-161 of the D1 polypeptide. To test this hypothesis, we have changed Tyr-161 to phenylalanine by site-directed mutagenesis of a psbA gene in Synechocystis. The resulting mutant assembles PSII, as judged by its ability to produce the stable Y+D radical, but is unable to grow photosynthetically and exhibits altered fluorescence properties. The nature of the fluorescence change indicates that forward electron transfer to P+680 is disrupted in the mutant. These results provide strong support for our identification of Tyr-161 in the D1 polypeptide with YZ.
Collapse
Affiliation(s)
- R J Debus
- MSU-DOE Plant Research Laboratory, Department of Chemistry, Michigan State University, East Lansing 48824
| | | | | | | | | |
Collapse
|
20
|
Diner BA, Ries DF, Cohen BN, Metz JG. COOH-terminal processing of polypeptide D1 of the photosystem II reaction center of Scenedesmus obliquus is necessary for the assembly of the oxygen-evolving complex. J Biol Chem 1988. [DOI: 10.1016/s0021-9258(18)68403-0] [Citation(s) in RCA: 143] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
21
|
|
22
|
Ikeuchi M, Koike H, Inoue Y. Iodination of D1 (herbicide-binding protein) is coupled with photooxidation of 125I− associated with Cl−-binding site in Photosystem-II water-oxidation system. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1988. [DOI: 10.1016/0005-2728(88)90151-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
23
|
Cantrell A, Bryant DA. Molecular cloning and nucleotide sequence of the psaA and psaB genes of the cyanobacterium Synechococcus sp. PCC 7002. PLANT MOLECULAR BIOLOGY 1987; 9:453-468. [PMID: 24277132 DOI: 10.1007/bf00015877] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/1987] [Accepted: 07/14/1987] [Indexed: 06/02/2023]
Abstract
The psaA and psaB genes, which encode the P700 chlorophyll a apoproteins of the Photosystem I complex, have been cloned from the unicellular, transformable cyanobacterium Synechococcus sp. PCC 7002. The nucleotide sequence of these genes and of their flanking sequences have been determined by the chain termination method. As found in the chloroplast genomes of higher plants, the psaA gene lies 5' to the psaB gene; however, the cyanobacterial genes are separated by a greater distance (173 vs. 25-26 bp). The psaA gene is predicted to encode a polypeptide of 739 amino acid residues (81.7 kDa), and the psaB gene is predicted to encode a polypeptide of 733 residues (81.4 kDa). The cyanobacterial psa gene products are 76% to 81% identical to their higher plant homologues; moreover, because of conservative amino acid replacements, the cyanobacterial sequences are more than 95% homologous to those determined for higher plants. These results provide the basis for a genetic analysis of Photosystem I, and are discussed in relationship to structural and functional aspects of the Photosystem I complexes of both cyanobacteria and higher plants.
Collapse
Affiliation(s)
- A Cantrell
- S-101 Frear Bldg. Department of Molecular and Cell Biology, The Pennsylvania State University, 16802, University Park, PA, USA
| | | |
Collapse
|
24
|
Renger G. Biologische Sonnenenergienutzung durch photosynthetische Wasserspaltung. Angew Chem Int Ed Engl 1987. [DOI: 10.1002/ange.19870990708] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
25
|
|