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Morosinotto T, Bassi R, Frigerio S, Finazzi G, Morris E, Barber J. Biochemical and structural analyses of a higher plant photosystem II supercomplex of a photosystem I-less mutant of barley. Consequences of a chronic over-reduction of the plastoquinone pool. FEBS J 2006; 273:4616-30. [PMID: 16984398 DOI: 10.1111/j.1742-4658.2006.05465.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photosystem II of higher plants is a multisubunit transmembrane complex composed of a core moiety and an extensive peripheral antenna system. The number of antenna polypeptides per core complex is modulated following environmental conditions in order to optimize photosynthetic performance. In this study, we used a barley (Hordeum vulgare) mutant, viridis zb63, which lacks photosystem I, to mimic extreme and chronic overexcitation of photosystem II. The mutation was shown to reduce the photosystem II antenna to a minimal size of about 100 chlorophylls per photosystem II reaction centre, which was not further reducible. The minimal photosystem II unit was analysed by biochemical methods and by electron microscopy, and found to consist of a dimeric photosystem II reaction centre core surrounded by monomeric Lhcb4 (chlorophyll protein 29), Lhcb5 (chlorophyll protein 26) and trimeric light-harvesting complex II antenna proteins. This minimal photosystem II unit forms arrays in vivo, possibly to increase the efficiency of energy distribution and provide photoprotection. In wild-type plants, an additional antenna protein, chlorophyll protein 24 (Lhcb6), which is not expressed in viridis zb63, is proposed to associate to this minimal unit and stabilize larger antenna systems when needed. The analysis of the mutant also revealed the presence of two distinct signalling pathways activated by excess light absorbed by photosystem II: one, dependent on the redox state of the electron transport chain, is involved in the regulation of antenna size, and the second, more directly linked to the level of photoinhibitory stress perceived by the cell, participates in regulating carotenoid biosynthesis.
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Affiliation(s)
- Tomas Morosinotto
- Université d'Aix-Marseille II, Faculté des Sciences de Luminy, Laboratoire de Génétique et de Biophysique des Plantes, LGBP, CNRS-CEA-Université de la Méditerranée, Marseille, France.
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Knoetzel J, Mant A, Haldrup A, Jensen PE, Scheller HV. PSI-O, a new 10-kDa subunit of eukaryotic photosystem I. FEBS Lett 2002; 510:145-8. [PMID: 11801243 DOI: 10.1016/s0014-5793(01)03253-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel polypeptide with an apparent molecular mass of 9 kDa was detected after sodium dodecyl sulphate-polyacrylamide gel electrophoresis of Arabidopsis photosystem I (PSI) and was N-terminally sequenced. Corresponding cDNA clones encode a precursor protein of 140 amino acid residues which was imported into isolated intact chloroplasts and processed to the mature protein, designated PSI-O. The mature protein has two transmembrane helices and a calculated mass of 10104 Da. The PSI-O protein was also shown to be present in PSI isolated from barley and spinach, and was essentially absent in chloroplast grana. Expressed sequences encoding similar proteins are available from many species of plants and green algae.
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Affiliation(s)
- Jürgen Knoetzel
- Plant Biochemistry Laboratory, Department of Plant Biology, The Royal Veterinary and Agricultural University, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark
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Scheller HV, Jensen PE, Haldrup A, Lunde C, Knoetzel J. Role of subunits in eukaryotic Photosystem I. BIOCHIMICA ET BIOPHYSICA ACTA 2001; 1507:41-60. [PMID: 11687207 DOI: 10.1016/s0005-2728(01)00196-7] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photosystem I (PSI) of eukaryotes has a number of features that distinguishes it from PSI of cyanobacteria. In plants, the PSI core has three subunits that are not found in cyanobacterial PSI. The remaining 11 subunits of the core are conserved but several of the subunits have a different role in eukaryotic PSI. A distinguishing feature of eukaryotic PSI is the membrane-imbedded peripheral antenna. Light-harvesting complex I is composed of four different subunits and is specific for PSI. Light-harvesting complex II can be associated with both PSI and PSII. Several of the core subunits interact with the peripheral antenna proteins and are important for proper function of the peripheral antenna. The review describes the role of the different subunits in eukaryotic PSI. The emphasis is on features that are different from cyanobacterial PSI.
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Affiliation(s)
- H V Scheller
- Plant Biochemistry Laboratory, Department of Plant Biology, The Royal Veterinary and Agricultural University, 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark.
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Meurer J, Meierhoff K, Westhoff P. Isolation of high-chlorophyll-fluorescence mutants of Arabidopsis thaliana and their characterisation by spectroscopy, immunoblotting and northern hybridisation. PLANTA 1996; 198:385-96. [PMID: 8717135 DOI: 10.1007/bf00620055] [Citation(s) in RCA: 128] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Thirty-four recessive photosynthetic mutants of the high-chlorophyll-fluorescence (hcf) phenotype have been isolated by screening 7700 M2 progenies of ethyl methane sulfonate-treated seeds of Arabidopsis thaliana. Most of the mutants isolated were found to be seedling-lethal, but could be grown on sucrose-supplemented media. Chlorophyll (Chl) fluorescence induction, absorption changes in the reaction-centre chlorophyll of PS I (P700) at 830 nm and Chl a/Chl b ratios were recorded in order to probe the photosynthetic functions and to define the mutational lesion. These studies were complemented by immunoblot and Northern analyses which finally led to the classification of the mutants into six different groups. Four classes of mutants were affected in PS I, PS II (two different classes) or the intersystem electron-transport chain, respectively. A fifth mutant class was of pleiotropic nature and the sixth class comprised a Chl b-deficient mutant. Several of the mutants showed severe deficiencies in the levels of subunits of PS I, PS II or the cytochrome b6/f complex. Thus the mutational lesions could be located precisely. Only one mutant was defective in the transcript patterns of some plastid-encoded photosynthesis genes. Hence most of the mutants isolated appear to be affected in translational and post-translational regulatory processes of thylakoid membrane biogenesis or in structural genes encoding constituent subunits of the thylakoid protein complexes.
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Affiliation(s)
- J Meurer
- Institut für Entwicklungs- und Molekularbiologie der Pflanzen, Heinrich-Heine-Universität, Düsseldorf, Germany
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Schaffner C, Laasch H, Hagemann R. Detection of point mutations in chloroplast genes of Antirrhinum majus L. I. Identification of a point mutation in the psaB gene of a photosystem I plastome mutant. MOLECULAR & GENERAL GENETICS : MGG 1995; 249:533-44. [PMID: 8544819 DOI: 10.1007/bf00290579] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A point mutation in the plastome-encoded psaB gene of the mutant en:alba-1 of Antirrhinum majus L. was identified by an analysis of chloroplast DNA with a modified PCR-SSCP technique. Application of this technique is indicated when a gene or a group of genes is known in which the point mutation is located. Analysis of primary photosynthetic reactions in the yellowish white plastome mutant indicated a dysfunction of photosystem (PS) I. The peak wavelength of PS I-dependent chlorophyll (Chl) fluorescence emission at 77 K was shifted by 4 nm to 730 nm, as compared to fluorescence from wild-type. There were no redox transients of the reaction center Chl P700 upon illumination of leaves with continuous far-red light or with rate-saturating flashes of white light. The PS I reaction center proteins PsaA and PsaB are not detectable by SDS-PAGE in mutant plastids. Hence, plastome encoded PS I genes were regarded as putative sites of mutation. In order to identify plastome mutations we developed a modified SSCP (single-strand conformation polymorphism) procedure using a large PCR fragment which can be cleaved with various restriction enzymes. When DNA from wild-type and en:alba-1 was submitted to SSCP analysis, a single stranded HinfI fragment of a PCR product of the psaB gene showed differences in electrophoretic mobility. Sequence analysis revealed that the observed SSCP was caused by a single base substitution at codon 136 (TAT-->TAG) of the psaB gene. The point mutation produces a new stop codon that leads to a truncated PsaB protein. The results presented indicate that the mutation prevents the assembly of a functional PS I complex. The applicability to other plastome mutants of the new method for detection of point mutations is discussed.
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Affiliation(s)
- C Schaffner
- Institute of Genetics, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
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Juhler RK, Miller M, Simpson D, Cox RP. Chlorophyll fluorescence transients in a barley mutant lacking Photosystem I. PHOTOSYNTHESIS RESEARCH 1993; 35:305-310. [PMID: 24318760 DOI: 10.1007/bf00016561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/1992] [Accepted: 11/04/1992] [Indexed: 06/02/2023]
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 the presence of O2 at concentrations similar to that in air; 2% O2 in N2 had no effect. The observed decline was mainly due to an increase in the non-photochemical quenching. Secondly, in the absence of O2, saturating light pulses caused a pronounced transient decrease in the fluorescence signal; a similar effect could also be observed in wild type plants when neither CO2 nor O2 was present.
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Affiliation(s)
- R K Juhler
- Institute of Biochemistry, Odense University, Campusvej 55, DK 5230, Odense M, Denmark
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Ougham HJ, Thomas AM, Thomas BJ, Roberts PC, Mutinda C, Hayward MD, Dalton SJ. Leaf development in Lolium temulentum L.: characterization of a slow-to-green mutant. THE NEW PHYTOLOGIST 1992; 122:261-272. [PMID: 33873986 DOI: 10.1111/j.1469-8137.1992.tb04230.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A nuclear-gene mutation of the C3 grass Lolium temulentum L., which arose following cell suspension culture and plant regeneration, is manifested as delayed and incomplete greening, which occurs from the leaf tip downwards. Many plastids in the mutant exhibit abnormal morphology when examined by transmission electron microscopy; the plastid outer envelope lacks integrity and thylakoids, while still stacked, are spread over a wide area surrounded by diffuse stromal contents. These aberrant plastids can coexist with apparently normal chloroplasts in the same cell of mutant plants. Levels of chlorophyll a and b, and carotenoids, are all lower in the mutants than in normal Lolium temulentum. Leaf length, absolute growth rate, and number of cells per unit length at the leaf base, are greatly reduced (20-30% the normal values) in slow-to-green plants, but relative growth rate, duration of leaf growth, length of cell division zone and proportion of cells dividing are little affected. This novel mutant is a potentially valuable resource for studying interrelationships between photosynthetic function and leaf extension growth in grasses.
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Affiliation(s)
- Helen J Ougham
- Cell Biology Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
| | - Ann M Thomas
- Cell Biology Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
| | - Barry J Thomas
- Cell Biology Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
| | - Peter C Roberts
- Cell Biology Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
| | - Charles Mutinda
- Plant Genetics And Breeding Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
| | - Michael D Hayward
- Plant Genetics And Breeding Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
| | - Susan J Dalton
- Cell Biology Department, AFRC Institute Of Grassland And Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, Wales, UK
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Cook WB, Miles D. Anomalous electron transport activity in a Photosystem I-deficient maize mutant. PHOTOSYNTHESIS RESEARCH 1990; 24:81-8. [PMID: 24419768 DOI: 10.1007/bf00032647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/1989] [Accepted: 10/23/1989] [Indexed: 05/10/2023]
Abstract
Photosynthesis mutations were induced in maize lines bearing the transposable DNA element system, Mutator. Two Photosystem I mutants (hcf101 and hcf104) which were isolated are described here. Maize plants homozygous for the hcf104 mutation are seedling lethal and exhibit a high in vivo chlorophyll fluorescence yield. They lack ∼60% of CP1, P700 and PSI-specific electron transport activity relative to normal sibling plants. The comparable depletion of these three measures of PS I content conforms to the pattern reported for many other PS I-deficient mutants. Maize plants homozygous for hcf101 are seedling lethal and also exhibit high in vivo chlorophyll fluorescence yield. They lack 80-90% of CP1 and P700 but sustain steady state levels of PS I-specific electron transport activity at 70% of normal. Previous reports of similar apparent PS I hyperactivity are discussed and an explanation for the elevated steady state level of PS I electron transport activity in hcf101 is proposed.
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Affiliation(s)
- W B Cook
- Department of Biological Sciences, University of Missouri, 65211, Columbia, MO, USA
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Photosystem II and cytochromeb-559 in the stroma lamellae of barley chloroplasts. ACTA ACUST UNITED AC 1987. [DOI: 10.1007/bf02907528] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Trissl HW, Breton J, Deprez J, Leibl W. Primary electrogenic reactions of Photosystem II as probed by the light-gradient method. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1987. [DOI: 10.1016/0005-2728(87)90052-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Identification of a chloroplast-encoded 9-kDa polypeptide as a 2[4Fe-4S] protein carrying centers A and B of photosystem I. J Biol Chem 1987. [DOI: 10.1016/s0021-9258(18)45260-x] [Citation(s) in RCA: 124] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Høj PB, Møller BL. The 110-kDa reaction center protein of photosystem I, P700-chlorophyll a-protein 1, is an iron-sulfur protein. J Biol Chem 1986. [DOI: 10.1016/s0021-9258(18)67017-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Chia CP, Duesing JH, Watson JL, Guy R, Arntzen CJ. Characterization of cytoplasmic mutants of Nicotiana tabacum with altered photosynthetic function. Curr Genet 1986. [DOI: 10.1007/bf00419876] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Høyer-Hansen G, Hønberg LS, Høj PB. Probing in vitro translation products with monoclonal antibodies to a 15.2 kD polypeptide subunit of photosystem I. ACTA ACUST UNITED AC 1985. [DOI: 10.1007/bf02907147] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Monoclonal antibodies used for the characterization of the two putative iron-sulphur centre proteins associated with photosystem I. ACTA ACUST UNITED AC 1985. [DOI: 10.1007/bf02910535] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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de Heij HT, Jochemsen AG, Willemsen PT, Groot GS. Protein synthesis during chloroplast development in Spirodela oligorhiza. Coordinated synthesis of chloroplast-encoded and nuclear-encoded subunits of ATPase and ribulose-1,5-bisphosphate carboxylase. EUROPEAN JOURNAL OF BIOCHEMISTRY 1984; 138:161-8. [PMID: 6229404 DOI: 10.1111/j.1432-1033.1984.tb07895.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We have studied qualitative and quantitative changes of several parameters during chloroplast development in Spirodela oligorhiza (duckweed). On a dry weight basis, the amount of protein increases from 2.5% (w/w) in dark-grown to 7.8% (w/w) in light-grown fronds. At the same time the amount of starch drops from 50% to 27% (w/w). Using an immunochemical quantification method we have found that during greening of etiolated plants the amount of all subunits of the ATPase complex per frond increases 10-fold, whereas the level of the subunits of ribulose-1,5-biphosphate carboxylase increases 50-fold. Cytochrome f was found to be present in dark-grown Spirodela and the amount of this polypeptide per frond increases about 30-fold. The concentration of a polypeptide that possibly represents a cytochrome b6 subunit increases about 10-fold upon greening. The molar ratio of the CF1-beta and CF1-gamma subunits of the ATPase complex varies over 2-3, while in all stages of chloroplast development studied the molar ratio of the carboxylase subunits is about 1. As these values are in agreement with the stoichiometrical amounts in the native protein complexes, we conclude that the synthesis of CF1-beta and CF1-gamma, as well as the synthesis of the large and small carboxylase subunits, are strictly coordinated during chloroplast biogenesis in Spirodela oligorhiza.
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Hønberg LS. Probing barley mutants with a monoclonal antibody to a polypeptide involved in photosynthetic oxygen evolution. ACTA ACUST UNITED AC 1984. [DOI: 10.1007/bf02907501] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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von Wettstein D. Genetic engineering in the adaptation of plants to evolving human needs. ACTA ACUST UNITED AC 1983. [DOI: 10.1007/bf01990287] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Haworth P, Watson JL, Arntzen CJ. The detection, isolation and characterization of a light-harvesting complex which is specifically associated with Photosystem I. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1983. [DOI: 10.1016/0005-2728(83)90036-1] [Citation(s) in RCA: 170] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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A thylakoid polypeptide involved in the reconstitution of photosynthetic oxygen evolution. ACTA ACUST UNITED AC 1983. [DOI: 10.1007/bf02907765] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Henry LEA, Mikkelsen JD, Møller BL. Pigment and acyl lipid composition of photosystem I and II vesicles and of photosynthetic mutants in barley. ACTA ACUST UNITED AC 1983. [DOI: 10.1007/bf02906174] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Koenig F, Møller BL. Isolation and characterization of cytochromeb-559 from chloroplasts and etioplasts of barley. ACTA ACUST UNITED AC 1982. [DOI: 10.1007/bf02907786] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Simpson DJ. Freeze-fracture studies on barley plastid membranes V.viridis-n 34, a photosystem I mutant. ACTA ACUST UNITED AC 1982. [DOI: 10.1007/bf02907873] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Metz JG, Miles D. Use of a nuclear mutant of maize to identity components of Photosystem II. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1982. [DOI: 10.1016/0005-2728(82)90282-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Henry LEA, Møller BL, Andersson B, Åkerlund HE. Reactivation of photosynthetic oxygen evolution in tris-inactivated inside-out photosystem II vesicles from spinach. ACTA ACUST UNITED AC 1982. [DOI: 10.1007/bf02904381] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Høyer-Hansen G, Casadoro G. Unstable chloroplast ribosomes in the cold-sensitive barley mutanttigrina-o 34. ACTA ACUST UNITED AC 1982. [DOI: 10.1007/bf02914030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Møller BL, Nugent JHA, Evans MCW. Electron paramagnetic resonance spectrometry of photosystem I mutants in barley. ACTA ACUST UNITED AC 1981. [DOI: 10.1007/bf02907959] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Polypeptide composition of an oxygen evolving photosystem II vesicle from spinach chloroplasts. ACTA ACUST UNITED AC 1981. [DOI: 10.1007/bf02906500] [Citation(s) in RCA: 69] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Searle GFW, Koehorst RBM, Schaafsma TJ, Møller BL, von Wettstein D. Fluorescence detected magnetic resonance (FDMR) spectroscopy of chlorophyll-proteins from barley. ACTA ACUST UNITED AC 1981. [DOI: 10.1007/bf02906496] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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