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Torpee S, Kantachote D, Sukhoom A, Tantirungkij M. Culture optimization to enhance carotenoid production of a selected purple nonsulfur bacterium and its activity against acute hepatopancreatic necrosis disease-causing Vibrio parahaemolyticus. Biotechnol Appl Biochem 2022; 69:2422-2436. [PMID: 34841569 DOI: 10.1002/bab.2292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 11/23/2021] [Indexed: 12/27/2022]
Abstract
Purple nonsulfur bacteria (PNSB) were investigated for their carotenoid production and anti-vibrio activity against acute hepatopancreatic necrosis disease (AHPND)-causing Vibrio parahaemolyticus. To test carotenoid production, selected strains were cultivated in basic isolation medium (BIM), glutamate acetate medium, G5 medium and artificial acetic acid wastewater (AAW) medium. From 144 PNSB, Rhodopseudomonas palustris KTSSG46 was selected to produce carotenoids under microaerobic light conditions in BIM. When the culture medium was optimized, strain KTSSG46 grown in BIM modified with l-glutamate at 1 g/L more effectively inhibited AHPND-causing V. parahaemolyticus strains than standard BIM with 1 g/L (NH4 )2 SO4 . BIM was further modified with 1.23 g/L MgSO4 ·7H2 O and carotenoid production increased 40.22%. Carotenoid production at day 2 by strain KTSSG46 grown in BIM modified with l-glutamate at 1 and 1.23 g/L MgSO4 ·7H2 O was the same as production in BIM modified with monosodium glutamate (MSG). Culture supernatants from all BIM formulations showed similar activity against the resistant AHPND strain SR2. Based on high-performance liquid chromatography, carotenoids of strain KTSSG46 might be canthaxanthin. Grown in BIM modified with MSG, strain KTSSG46 could produce inexpensive carotenoids and release anti-vibrio compounds that, applied as shrimp feed additive, would prevent AHPND strains.
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Affiliation(s)
- Salwa Torpee
- Department of Microbiology, Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Duangporn Kantachote
- Department of Microbiology, Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Ampaitip Sukhoom
- Department of Microbiology, Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Manee Tantirungkij
- Research and Academic Service Center, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom, Thailand
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2
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Lubert-Perquel D, Szumska AA, Azzouzi M, Salvadori E, Ruloff S, Kay CMW, Nelson J, Heutz S. Structure Dependence of Kinetic and Thermodynamic Parameters in Singlet Fission Processes. J Phys Chem Lett 2020; 11:9557-9565. [PMID: 33119322 DOI: 10.1021/acs.jpclett.0c02505] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Singlet fission-whereby one absorbed photon generates two coupled triplet excitons-is a key process for increasing the efficiency of optoelectronic devices by overcoming the Shockley-Queisser limit. A crucial parameter is the rate of dissociation of the coupled triplets, as this limits the number of free triplets subsequently available for harvesting and ultimately the overall efficiency of the device. Here we present an analysis of the thermodynamic and kinetic parameters for this process in parallel and herringbone dimers measured by electron paramagnetic resonance spectroscopy in coevaporated films of pentacene in p-terphenyl. The rate of dissociation is higher for parallel dimers than for their herringbone counterparts, as is the rate of recombination to the ground state. DFT calculations, which provide the magnitude of the electronic coupling as well as the distribution of molecular orbitals for each geometry, suggest that weaker triplet coupling in the parallel dimer is the driving force for faster dissociation. Conversely, localization of the molecular orbitals and a stronger triplet-triplet interaction result in slower dissociation and recombination. The identification and understanding of how the intermolecular geometry promotes efficient triplet dissociation provide the basis for control of triplet coupling and thereby the optimization of one important parameter of device performance.
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Affiliation(s)
- Daphné Lubert-Perquel
- London Centre for Nanotechnology and Department of Materials, Imperial College London, Prince Consort Road, London SW7 2BP, U.K
| | - Anna A Szumska
- Department of Physics, Imperial College London, Prince Consort Road, London SW7 2BP, U.K
| | - Mohammed Azzouzi
- Department of Physics, Imperial College London, Prince Consort Road, London SW7 2BP, U.K
| | - Enrico Salvadori
- Department of Chemistry, University of Turin, Via Giuria 7, Turin 10125, Italy
| | - Stefan Ruloff
- Department of Chemistry, University of Saarland, Saarbrücken 66123, Germany
| | - Christopher M W Kay
- Department of Chemistry, University of Saarland, Saarbrücken 66123, Germany
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London WC1H 0AH, U.K
| | - Jenny Nelson
- Department of Physics, Imperial College London, Prince Consort Road, London SW7 2BP, U.K
| | - Sandrine Heutz
- London Centre for Nanotechnology and Department of Materials, Imperial College London, Prince Consort Road, London SW7 2BP, U.K
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Hashimoto H, Uragami C, Yukihira N, Gardiner AT, Cogdell RJ. Understanding/unravelling carotenoid excited singlet states. J R Soc Interface 2018; 15:20180026. [PMID: 29643225 PMCID: PMC5938589 DOI: 10.1098/rsif.2018.0026] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/16/2018] [Indexed: 11/12/2022] Open
Abstract
Carotenoids are essential light-harvesting pigments in natural photosynthesis. They absorb in the blue-green region of the solar spectrum and transfer the absorbed energy to (bacterio-)chlorophylls, and thus expand the wavelength range of light that is able to drive photosynthesis. This process is an example of singlet-singlet excitation energy transfer, and carotenoids serve to enhance the overall efficiency of photosynthetic light reactions. The photochemistry and photophysics of carotenoids have often been interpreted by referring to those of simple polyene molecules that do not possess any functional groups. However, this may not always be wise because carotenoids usually have a number of functional groups that induce the variety of photochemical behaviours in them. These differences can also make the interpretation of the singlet excited states of carotenoids very complicated. In this article, we review the properties of the singlet excited states of carotenoids with the aim of producing as coherent a picture as possible of what is currently known and what needs to be learned.
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Affiliation(s)
- Hideki Hashimoto
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Chiasa Uragami
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Nao Yukihira
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Alastair T Gardiner
- Institute of Molecular, Cell and Systems Biology, College of Medical Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow G12 8QQ, UK
| | - Richard J Cogdell
- Institute of Molecular, Cell and Systems Biology, College of Medical Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow G12 8QQ, UK
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Cong H, Niedzwiedzki DM, Gibson GN, LaFountain AM, Kelsh RM, Gardiner AT, Cogdell RJ, Frank HA. Ultrafast time-resolved carotenoid to-bacteriochlorophyll energy transfer in LH2 complexes from photosynthetic bacteria. J Phys Chem B 2008; 112:10689-703. [PMID: 18671366 PMCID: PMC3628606 DOI: 10.1021/jp711946w] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Steady-state and ultrafast time-resolved optical spectroscopic investigations have been carried out at 293 and 10 K on LH2 pigment-protein complexes isolated from three different strains of photosynthetic bacteria: Rhodobacter (Rb.) sphaeroides G1C, Rb. sphaeroides 2.4.1 (anaerobically and aerobically grown), and Rps. acidophila 10050. The LH2 complexes obtained from these strains contain the carotenoids, neurosporene, spheroidene, spheroidenone, and rhodopin glucoside, respectively. These molecules have a systematically increasing number of pi-electron conjugated carbon-carbon double bonds. Steady-state absorption and fluorescence excitation experiments have revealed that the total efficiency of energy transfer from the carotenoids to bacteriochlorophyll is independent of temperature and nearly constant at approximately 90% for the LH2 complexes containing neurosporene, spheroidene, spheroidenone, but drops to approximately 53% for the complex containing rhodopin glucoside. Ultrafast transient absorption spectra in the near-infrared (NIR) region of the purified carotenoids in solution have revealed the energies of the S1 (2(1)Ag-)-->S2 (1(1)Bu+) excited-state transitions which, when subtracted from the energies of the S0 (1(1)Ag-)-->S2 (1(1)Bu+) transitions determined by steady-state absorption measurements, give precise values for the positions of the S1 (2(1)Ag-) states of the carotenoids. Global fitting of the ultrafast spectral and temporal data sets have revealed the dynamics of the pathways of de-excitation of the carotenoid excited states. The pathways include energy transfer to bacteriochlorophyll, population of the so-called S* state of the carotenoids, and formation of carotenoid radical cations (Car*+). The investigation has found that excitation energy transfer to bacteriochlorophyll is partitioned through the S1 (1(1)Ag-), S2 (1(1)Bu+), and S* states of the different carotenoids to varying degrees. This is understood through a consideration of the energies of the states and the spectral profiles of the molecules. A significant finding is that, due to the low S1 (2(1)Ag-) energy of rhodopin glucoside, energy transfer from this state to the bacteriochlorophylls is significantly less probable compared to the other complexes. This work resolves a long-standing question regarding the cause of the precipitous drop in energy transfer efficiency when the extent of pi-electron conjugation of the carotenoid is extended from ten to eleven conjugated carbon-carbon double bonds in LH2 complexes from purple photosynthetic bacteria.
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Affiliation(s)
- Hong Cong
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, USA
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Gu Z, Deming C, Yongbin H, Zhigang C, Feirong G. Optimization of carotenoids extraction from Rhodobacter sphaeroides. Lebensm Wiss Technol 2008. [DOI: 10.1016/j.lwt.2007.07.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lin S, Katilius E, Ilagan RP, Gibson GN, Frank HA, Woodbury NW. Mechanism of Carotenoid Singlet Excited State Energy Transfer in Modified Bacterial Reaction Centers. J Phys Chem B 2006; 110:15556-63. [PMID: 16884279 DOI: 10.1021/jp061201d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ultrafast transient laser spectroscopy has been used to investigate carotenoid singlet excited state energy transfer in various Rhodobacter (Rb.) sphaeroides reaction centers (RCs) modified either genetically or chemically. The pathway and efficiency of energy transfer were examined as a function of the structures and energies of the donor and acceptor molecules. On the donor side, carotenoids with various extents of pi-electron conjugation were examined. RCs studied include those from the anaerobically grown wild-type strain containing the carotenoid spheroidene, which has 10 conjugated carbon-carbon double bonds; the GA strain containing neurosporene, which has nine conjugated double bonds; and aerobically grown wild-type cells, as well as aerobically grown H(M182)L mutant, both containing the carbonyl-containing carotenoid spheroidenone, which has 11 conjugated double bonds. By varying the structure of the carotenoid, we observed the effect of altering the energies of the carotenoid excited states on the rate of energy transfer. Both S(1)- and S(2)-mediated carotenoid-to-bacteriochlorophyll energy transfer processes were observed. The highest transfer efficiency, from both the S(1) and S(2) states, was observed using the carotenoid with the shortest chain. The S(1)-mediated carotenoid-to- bacteriochlorophyll energy transfer efficiencies were determined to be 96%, 84%, and 73% for neurosporene, spheroidene, and spheroidenone, respectively. The S(2)-mediated energy transfer efficiencies follow the same trend but could not be determined quantitatively because of limitations in the time resolution of the instrumentation. The dependence of the energy transfer rate on the energetics of the energy transfer acceptor was verified by performing measurements with RCs from the H(M182)L mutant. In this mutant, the bacteriochlorophyll (denoted B(B)) located between the carotenoid and the RC special pair (P) is replaced by a bacteriopheophytin (denoted phi(B)), where the Q(X) and Q(Y) bands of phi(B) are 1830 and 1290 cm(-1), respectively, higher in energy than those of B(B). These band shifts associated with phi(B) in the H(M182)L mutant significantly alter the spectral overlap between the carotenoid and phi(B), resulting in a significant decrease of the transfer efficiency from the carotenoid S(1) state to phi(B). This leaves energy transfer from the carotenoid S(2) state to phi(B) as the dominant channel. Largely because of this change in mechanism, the overall efficiency of energy transfer from the carotenoid to P decreases to less than 50% in this mutant. Because the spectral signature of phi(B) is different from that of B(A) in this mutant, we were able to demonstrate clearly that the carotenoid-to-P energy transfer is via phi(B). This finding supports the concept that, in wild-type RCs, the carotenoid-to-P energy transfer occurs through the cofactor located at the B(B) position.
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Affiliation(s)
- Su Lin
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA.
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Polívka T, Pullerits T, Frank HA, Cogdell RJ, Sundström V. Ultrafast Formation of a Carotenoid Radical in LH2 Antenna Complexes of Purple Bacteria. J Phys Chem B 2004. [DOI: 10.1021/jp0483019] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomáš Polívka
- Department of Chemical Physics, Lund University, Box 124, S-22100 Lund, Sweden, Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, and Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Tõnu Pullerits
- Department of Chemical Physics, Lund University, Box 124, S-22100 Lund, Sweden, Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, and Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Harry A. Frank
- Department of Chemical Physics, Lund University, Box 124, S-22100 Lund, Sweden, Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, and Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Richard J. Cogdell
- Department of Chemical Physics, Lund University, Box 124, S-22100 Lund, Sweden, Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, and Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Villy Sundström
- Department of Chemical Physics, Lund University, Box 124, S-22100 Lund, Sweden, Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, and Division of Biochemistry and Molecular Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, U.K
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Polívka T, Sundström V. Ultrafast dynamics of carotenoid excited States-from solution to natural and artificial systems. Chem Rev 2004; 104:2021-71. [PMID: 15080720 DOI: 10.1021/cr020674n] [Citation(s) in RCA: 656] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomás Polívka
- Department of Chemical Physics, Lund University, Box 124, SE-221 00 Lund, Sweden.
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Vengris M, van Stokkum IHM, He X, Bell AF, Tonge PJ, van Grondelle R, Larsen DS. Ultrafast Excited and Ground-State Dynamics of the Green Fluorescent Protein Chromophore in Solution. J Phys Chem A 2004. [DOI: 10.1021/jp037902h] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mikas Vengris
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Ivo H. M. van Stokkum
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Xiang He
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Alasdair F. Bell
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Peter J. Tonge
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Rienk van Grondelle
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
| | - Delmar S. Larsen
- Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
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Polívka T, Zigmantas D, Herek JL, He Z, Pascher T, Pullerits T, Cogdell RJ, Frank HA, Sundström V. The Carotenoid S1 State in LH2 Complexes from Purple Bacteria Rhodobacter sphaeroides and Rhodopseudomonas acidophila: S1 Energies, Dynamics, and Carotenoid Radical Formation. J Phys Chem B 2002. [DOI: 10.1021/jp025752p] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomáš Polívka
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Donatas Zigmantas
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Jennifer L. Herek
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Zhi He
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Torbjörn Pascher
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Tõnu Pullerits
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Richard J. Cogdell
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Harry A. Frank
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
| | - Villy Sundström
- Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Division of Biochemistry and Molecular Biology, Institute of Biomedical Sciences, University of Glasgow, G12 8QQ Glasgow, U.K., and Department of Chemistry, University of Connecticut, Storrs, Connecticut 0629−3060
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Zhang JP, Inaba T, Koyama Y. The role of the newly-found 1Bu− state of carotenoid in mediating the 1Bu+-to-2Ag− internal conversion and the excited-state dynamics of carotenoid and bacteriochlorophyll in a bacterial antenna complex. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00806-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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