| http://purl.uniprot.org/citations/19617542 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/19617542 | http://www.w3.org/2000/01/rdf-schema#comment | "Selective 2-photon excitation (TPE) of carotenoid dark states, Car S(1), shows that in the major light-harvesting complex of photosystem II (LHCII), the extent of electronic interactions between carotenoid dark states (Car S(1)) and chlorophyll (Chl) states, phi(Coupling)(Car S(1)-Chl), correlates linearly with chlorophyll fluorescence quenching under different experimental conditions. Simultaneously, a linear correlation between both Chl fluorescence quenching and phi(Coupling)(Car S(1)-Chl) with the intensity of red-shifted bands in the Chl Q(y) and carotenoid absorption was also observed. These results suggest quenching excitonic Car S(1)-Chl states as origin for the observed effects. Furthermore, real time measurements of the light-dependent down- and up-regulation of the photosynthetic activity and phi(Coupling)(Car S(1)-Chl) in wild-type and mutant (npq1, npq2, npq4, lut2 and WT+PsbS) Arabidopsis thaliana plants reveal that also in vivo the quenching parameter NPQ correlates always linearly with the extent of electronic Car S(1)-Chl interactions in any adaptation status. Our in vivo measurements with Arabidopsis variants show that during high light illumination, phi(Coupling)(Car S(1)-Chl) depends on the presence of PsbS and zeaxanthin (Zea) in an almost identical way as NPQ. In summary, these results provide clear evidence for a very close link between electronic Car S(1)-Chl interactions and the regulation of photosynthesis. These findings support a photophysical mechanism in which short-living, low excitonic carotenoid-chlorophyll states serve as traps and dissipation valves for excess excitation energy."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.org/dc/terms/identifier | "doi:10.1073/pnas.0903536106"xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Bittner F."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Barros T."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Walla P.J."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Wilk L."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Bode S."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Hafi N."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Liao P.N."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/author | "Quentmeier C.C."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/date | "2009"xsd:gYear |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/name | "Proc Natl Acad Sci U S A"xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/pages | "12311-12316"xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/title | "On the regulation of photosynthesis by excitonic interactions between carotenoids and chlorophylls."xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://purl.uniprot.org/core/volume | "106"xsd:string |
| http://purl.uniprot.org/citations/19617542 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/19617542 |
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