Light-generated nuclear quantum beats: a signature of photosynthesis
Light-induced radical pairs in deuterated and deuterated plus 15N-substituted Synechococcus lividus cyanobacteria have been studied by transient EPR following pulsed laser excitation. Nuclear quantum beats are observed in the transverse electron magnetization at lower temperatures. Model calculation...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 1995-08, Vol.92 (17), p.7789-7793 |
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| container_title | Proceedings of the National Academy of Sciences - PNAS |
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| creator | Weber, S. (University of Stuttgart, Stuttgart, Germany.) Ohmes, E Thurnauer, M.C Norris, J.R Kothe, G |
| description | Light-induced radical pairs in deuterated and deuterated plus 15N-substituted Synechococcus lividus cyanobacteria have been studied by transient EPR following pulsed laser excitation. Nuclear quantum beats are observed in the transverse electron magnetization at lower temperatures. Model calculations for the time profiles, evaluated at the high-field emissive maximum of the spectrum, indicate assignment of these coherences to nitrogen nuclei in the primary donor. Thorough investigation of the nuclear modulation patterns can provide detailed information on the electronic structure of the primary donor, providing insight into the mechanism of the primary events of plant photosynthesis |
| doi_str_mv | 10.1073/pnas.92.17.7789 |
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Thorough investigation of the nuclear modulation patterns can provide detailed information on the electronic structure of the primary donor, providing insight into the mechanism of the primary events of plant photosynthesis</description><subject>Acoustic spectra</subject><subject>Bacteria</subject><subject>Biochemistry</subject><subject>BIOLOGICAL PATHWAYS</subject><subject>Biology</subject><subject>BIOLOGY AND MEDICINE, BASIC STUDIES</subject><subject>CYANOBACTERIA</subject><subject>CYANOPHYTA</subject><subject>Electrons</subject><subject>ESPECTROSCOPIA ESR</subject><subject>FOTOSINTESIS</subject><subject>FOTOSISTEMAS</subject><subject>Lasers</subject><subject>Light</subject><subject>LUMIERE</subject><subject>LUZ</subject><subject>Magnetic fields</subject><subject>Magnetization</subject><subject>MATHEMATICAL MODELS</subject><subject>Microwaves</subject><subject>Nuclear spin</subject><subject>OXIRREDUCION</subject><subject>OXYDOREDUCTION</subject><subject>PHOTOSYNTHESE</subject><subject>PHOTOSYNTHESIS</subject><subject>PHOTOSYSTEME</subject><subject>Physics</subject><subject>SPECTROSCOPIE RSE</subject><subject>STRUCTURE-ACTIVITY RELATIONSHIPS</subject><subject>Synechococcus lividus</subject><subject>Tensors</subject><issn>0027-8424</issn><issn>1091-6490</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNp9kU1v1DAYhCMEokvhjIQQinqAU7b-jG3EpSqf0kocoGfLcZzEq6y9tR1E_z2OEtqCECcf5pmx5p2ieA7BFgKGz49Oxa1AW8i2jHHxoNhAIGBVEwEeFhsAEKs4QeSkeBLjHgAgKAePixMIa8AoQ5vi_c72Q6p640xQybSlm_RoVCivJ-XSdCgbo1J8W6oy2t6pNAVT-q48Dj75eOPSYKKNT4tHnRqjeba-p8XVxw_fLz9Xu6-fvlxe7CpNa5oqBmoFCCVCtaBuKaIdFi3QmiuEW40J0x1sCWwazWnbQIMgYV3mAESACIrwafFuyT1OzcG02rgU1CiPwR5UuJFeWfmn4uwge_9DEogwzPZysfuYrIzaJqMH7Z0zOknBeQ0y8nr9IfjrycQkDzZqM47KGT9FyRjga9b_QVhzzjDiGTz7C9z7Kbh8JpmLYZI3mqHzBdLBxxhMd9sJAjkPLeehpUASMjkPnR2v7p_ijl-XzcCbFZidv-W7BNlN45jMz3Qv6t9kBl4uwD4mH24JhGueC2T5xSJ3ykvVBxvl1TdBKacc419Iy83a</recordid><startdate>19950815</startdate><enddate>19950815</enddate><creator>Weber, S. 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Model calculations for the time profiles, evaluated at the high-field emissive maximum of the spectrum, indicate assignment of these coherences to nitrogen nuclei in the primary donor. Thorough investigation of the nuclear modulation patterns can provide detailed information on the electronic structure of the primary donor, providing insight into the mechanism of the primary events of plant photosynthesis</abstract><cop>United States</cop><pub>National Academy of Sciences of the United States of America</pub><pmid>11607572</pmid><doi>10.1073/pnas.92.17.7789</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| issn | 0027-8424 1091-6490 |
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| source | JSTOR Archive Collection A-Z Listing; PubMed Central; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Acoustic spectra Bacteria Biochemistry BIOLOGICAL PATHWAYS Biology BIOLOGY AND MEDICINE, BASIC STUDIES CYANOBACTERIA CYANOPHYTA Electrons ESPECTROSCOPIA ESR FOTOSINTESIS FOTOSISTEMAS Lasers Light LUMIERE LUZ Magnetic fields Magnetization MATHEMATICAL MODELS Microwaves Nuclear spin OXIRREDUCION OXYDOREDUCTION PHOTOSYNTHESE PHOTOSYNTHESIS PHOTOSYSTEME Physics SPECTROSCOPIE RSE STRUCTURE-ACTIVITY RELATIONSHIPS Synechococcus lividus Tensors |
| title | Light-generated nuclear quantum beats: a signature of photosynthesis |
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