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Gillbro T, Sundström V, Sandström Å, Spangfort M, Andersson B. Energy transfer within the isolated light-harvesting chlorophyll a/b
protein of photosystem II (LHC-II). FEBS Lett 2001. [DOI: 10.1016/0014-5793(85)80166-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Evans E, Brown RG. New trends in photobiology. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 1994. [DOI: 10.1016/1011-1344(93)06925-s] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Barsky EL, Vasil'ev SS, Paschenko VZ, Samuilov VD. Nanosecond fluorescence of chloroplasts as a probe for electron transfer disruption in photosystem II. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 1991. [DOI: 10.1016/1011-1344(91)80056-n] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sparrow R, Brown RG, Evans E, Shaw D. Time-resolved spectroscopy of photosynthetic systems. 3: photosystem 1 preparations from the cyanobacterium Chlorogloea fritschii. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 1990. [DOI: 10.1016/1011-1344(90)85057-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chan C, Gaines G, Fleming G, Mets L. Chlorophyll fluorescence lifetime studies of greening in yellow mutants of Chlamydomonas reinhardtii: Assembly of the Photosystem I core complex. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1989. [DOI: 10.1016/s0005-2728(89)80201-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Keuper HJ, Sauer K. Effect of photosystem II reaction center closure on nanosecond fluorescence relaxation kinetics. PHOTOSYNTHESIS RESEARCH 1989; 20:85-103. [PMID: 24425465 DOI: 10.1007/bf00028623] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/1988] [Accepted: 07/15/1988] [Indexed: 06/03/2023]
Abstract
The fluorescence decay of chlorophyll in spinach thylakoids was measured as a function of the degree of closure of Photosystem II reaction centers, which was set for the flowed sample by varying either the preillumination by actinic light or the exposure of the sample to the exciting pulsed laser light. Three exponential kinetic components originating in Photosystem II were fitted to the decays; a fourth component arising from Photosystem I was determined to be negligible at the emission wavelength of 685 nm at which the fluorescence decays were measured. Both the lifetimes and the amplitudes of the components vary with reaction center closure. A fast (170-330 ps) component reflects the trapping kinetics of open Photosystem II reaction centers capable of reducing the plastoquinone pool; its amplitude decreases gradually with trap closure, which is incompatible with the concept of photosynthetic unit connectivity where excitation energy which encounters a closed trap can find a different, possibly open one. For a connected system, the amplitude of the fast fluorescence component is expected to remain constant. The slow component (1.7-3.0 ns) is virtually absent when the reaction centers are open, and its growth is attributable to the appearance of closed centers. The middle component (0.4-1.7 ns) with approximately constant amplitude may originate from centers that are not functionally linked to the plastoquinone pool. To explain the continuous increase in the lifetimes of all three components upon reaction center closure, we propose that the transmembrane electric field generated by photosynthetic turnover modulates the trapping kinetics in Photosystem II and thereby affects the excited state lifetime in the antenna in the trap-limited case.
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Affiliation(s)
- H J Keuper
- Department of Chemistry, University of California, 94720, Berkeley, CA, U.S.A
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8
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Time-resolved chlorophyll fluorescence studies on pigment-protein complexes from photosynthetic membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1988. [DOI: 10.1016/0005-2728(88)90106-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kischkoweit C, Leibl W, Trissl HW. Theoretical and experimental study of trapping times and antenna organization in pea chloroplasts by means of the artificial fluorescence quencher m-dinitrobenzene. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1988. [DOI: 10.1016/0005-2728(88)90035-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hodges M, Mova I. Time-resolved chlorophyll fluorescence studies on photosynthetic mutants of Chlamydomonas reinhardtii: origin of the kinetic decay components. PHOTOSYNTHESIS RESEARCH 1987; 13:125-141. [PMID: 24435782 DOI: 10.1007/bf00035236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/1986] [Accepted: 03/23/1987] [Indexed: 06/03/2023]
Abstract
The room temperature chlorophyll fluorescence decay kinetics of photosynthetic mutants of Chlamydomonas reinhardtii have been measured as a function of Photosystem 2 (PS2) trap closure, DNB-induced quenching at FM, and time-resolved emission spectra. The overall decays have been analyzed in terms of three or four kinetic components where necessary. A comparison of the characteristics of the decay components exhibited by the mutants with the wild-type has been carried out to elucidate the precise origins of the different emissions in relation to the observed pigment-protein complexes. It is shown that a) charge recombination in PS2 is not necessary for the presence of long-lived decay components, b) there are two rapid PS1-associated emissions (τ=30 and 150-200 ps), c) a slow PS1 decay is observed (τ=1.73 ns) in the absence of PS1 reaction centres, d) the two variable components (τ=0.25-1.2 and 0.5-2.2 ns) observed in the wild-type arise from LHC2 and e) a rapid (τ=50-250 ps) decay is associated with the PS2 core antenna (CP3 and CP4). These results show that the intact thylakoid membrane system is too complex to distinguish all of the individual kinetic components.
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Affiliation(s)
- M Hodges
- Laboratoire de Photosynthèse, C.N.R.S., 91190, Gif-sur-Yvette, France
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Senoner M. The nanosecond decay of variable chlorophyll fluorescence in leaves of higher plants. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1986. [DOI: 10.1016/0005-2728(86)90149-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hodges M, Moya I. Time-resolved chlorophyll fluorescence studies of photosynthetic membranes: Resolution and characterisation of four kinetic components. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1986. [DOI: 10.1016/0005-2728(86)90025-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Berens SJ, Scheele J, Butler WL, Magde D. KINETIC MODELING OF TIME-RESOLVED FLUORESCENCE IN SPINACH CHLOROPLASTS. Photochem Photobiol 1985. [DOI: 10.1111/j.1751-1097.1985.tb03548.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Berens SJ, Scheele J, Butler WL, Magde D. TIME-RESOLVED FLUORESCENCE STUDIES OF SPINACH CHLOROPLASTS–EVIDENCE FOR THE HETEROGENEOUS BIPARTITE MODEL. Photochem Photobiol 1985. [DOI: 10.1111/j.1751-1097.1985.tb03547.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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van Grondelle R. Excitation energy transfer, trapping and annihilation in photosynthetic systems. ACTA ACUST UNITED AC 1985. [DOI: 10.1016/0304-4173(85)90017-5] [Citation(s) in RCA: 228] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Time-resolved picosecond fluorescence spectra of the antenna chlorophylls in Chlorella vulgaris. Resolution of Photosystem I fluorescence. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1985. [DOI: 10.1016/0005-2728(85)90119-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Resolution of component spectra for spinach chloroplasts and green algae by means of factor analysis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1985. [DOI: 10.1016/0005-2728(85)90052-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wittmershaus B, Nordlund TM, Knox WH, Knox RS, Geacintov NE, Breton J. Picosecond studies at 77 K of energy transfer in chloroplasts at low and high excitation intensities. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1985. [DOI: 10.1016/0005-2728(85)90085-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Dobek A, Deprez J, Geacintov N, Paillotin G, Breton J. Chlorophyll fluorescence phenomena in chloroplasts on subnanosecond time-scales probed by picosecond pulse pairs. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1985. [DOI: 10.1016/0005-2728(85)90084-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Fluorescence decay kinetics of mutants of corn deficient in photosystem I and photosystem II. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1984. [DOI: 10.1016/0005-2728(84)90058-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Karukstis KK, Sauer K. Organization of the photosynthetic apparatus of the chlorina-f2 mutant of barley using chlorophyll fluorescence decay kinetics. BIOCHIMICA ET BIOPHYSICA ACTA 1984; 766:148-55. [PMID: 6743648 DOI: 10.1016/0005-2728(84)90226-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The time-resolved chlorophyll fluorescence emission of higher plant chloroplasts monitors the primary processes of photosynthesis and reflects photosynthetic membrane organization. In the present study we compare measurements of the chlorophyll fluorescence decay kinetics of the chlorophyll-b-less chlorina-f2 barley mutant and wild-type barley to investigate the effect of alterations in thylakoid membrane composition on chlorophyll fluorescence. Our analysis characterizes the fluorescence decay of chlorina-f2 barley chloroplasts by three exponential components with lifetimes of approx. 100 ps, 400 ps and 2 ns. The majority of the chlorophyll fluorescence originates in the two faster decay components. Although photo-induced and cation-induced effects on fluorescence yields are evident, the fluorescence lifetimes are independent of the state of the Photosystem-II reaction centers and the degree of grana stacking. Wild-type barley chloroplasts also exhibit three kinetic fluorescence components, but they are distinguished from those of the chlorina-f2 chloroplasts by a slow decay component which displays cation- and photo-induced yield and lifetime changes. A comparison is presented of the kinetic analysis of the chlorina-f2 barley fluorescence to the decay kinetics previously measured for intermittent-light-grown peas (Karukstis, K. and Sauer, K. (1983) Biochim. Biophys. Acta 725, 384-393). We propose that similarities in the fluorescence decay kinetics of both species are a consequence of analogous rearrangements of the thylakoid membrane organization due to the deficiencies present in the light-harvesting chlorophyll a/b complex.
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Time-Resolved Picosecond Fluorescence Spectra of the Antenna Chlorophylls in the Green Alga Chlorella Vulgaris. ACTA ACUST UNITED AC 1984. [DOI: 10.1007/978-3-642-82378-7_135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Haworth P, Karukstis KK, Sauer K. Picosecond fluorescence kinetics in spinach chloroplasts at room temperature. Effects of phosphorylation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1983. [DOI: 10.1016/0005-2728(83)90199-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Karukstis KK, Sauer K. Photosynthetic membrane development studied using picosecond fluorescence kinetics. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1983. [DOI: 10.1016/0005-2728(83)90213-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Karukstis KK, Sauer K. Fluorescence decay kinetics of chlorophyll in photosynthetic membranes. J Cell Biochem 1983; 23:131-58. [PMID: 6373794 DOI: 10.1002/jcb.240230112] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The absorption of light by the pigments of photosynthetic organisms results in electronic excitation that provides the energy to drive the energy-storing light reactions. A small fraction of this excitation gives rise to fluorescence emission, which serves as a sensitive probe of the energetics and kinetics of the excited states. The wavelength dependence of the excitation and emission spectra can be used to characterize the nature of the absorbing and fluorescing molecules and to monitor the process of sensitization of the excitation transfer from one pigment to another. This excitation transfer process can also be followed by the progressive depolarization of the emitted radiation. Using time-resolved fluorescence rise and decay kinetics, measurements of these processes can now be characterized to as short as a few picoseconds. Typically, excitation transfer among the antenna or light harvesting pigments occurs within 100 psec, whereupon the excitation has reached a photosynthetic reaction center capable of initiating electron transport. When this trap is functional and capable of charge separation, the fluorescence intensity is quenched and only rapidly decaying kinetic components resulting from the loss of excitation in transit in the antenna pigment bed are observed. When the reaction centers are blocked or saturated by high light intensities, the photochemical quenching is relieved, the fluorescence intensity rises severalfold, and an additional slower decay component appears and eventually dominates the decay kinetics. This slower (1-2 nsec) decay results from initial charge separation followed by recombination in the blocked reaction centers and repopulation of the excited electronic state, leading to a rapid delayed fluorescence component that is the origin of variable fluorescence. Recent growth in the literature in this area is reviewed here, with an emphasis on new information obtained on excitation transfer, trapping, and communication between different portions of the photosynthetic membranes.
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