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000040448 0247_ $$2DOI$$a10.1093/jxb/eri012
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000040448 084__ $$2WoS$$aPlant Sciences
000040448 1001_ $$0P:(DE-Juel1)129358$$aMatsubara, S.$$b0$$uFZJ
000040448 245__ $$aSlowly reversible de-epoxidation of lutein-epoxide in deep shade leaves of a tropical tree legume may 'lock-in' lutein-based photoprotection during acclimation to strong light
000040448 260__ $$aOxford$$bUniv. Press$$c2005
000040448 300__ $$a461 - 468
000040448 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000040448 440_0 $$03318$$aJournal of Experimental Botany$$v56$$x0022-0957$$y411
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000040448 520__ $$aThe kinetics of response to strong light have been examined in deeply shaded leaves of the tropical tree legume (Inga sp.) which have extraordinarily high levels of the alpha-xanthophyll lutein-epoxide that are co-located in pigment-protein complexes of the photosynthetic apparatus with the beta-xanthophyll violaxanthin. As in other species, rapidly reversible photoprotection (measured as non-photochemical chlorophyll fluorescence quenching) is initiated within the time frame of sun-flecks (minutes), before detectable conversion of violaxanthin to antheraxanthin or zeaxanthin. Photoprotection is stabilized within hours of exposure to strong light by simultaneously engaging the reversible violaxanthin cycle and a slowly reversible conversion of lutein-epoxide to lutein. It is proposed that this lutein 'locks in' a primary mechanism of photoprotection during photoacclimation in this species, converting efficient light-harvesting antennae of the shade plant into potential excitation dissipating centres. It is hypothesized that lutein occupies sites L2 and V1 in light-harvesting chlorophyll protein complexes of photosystem II, facilitating enhanced photoprotection through the superior singlet and/or triplet chlorophyll quenching capacity of lutein.
000040448 536__ $$0G:(DE-Juel1)FUEK257$$2G:(DE-HGF)$$aChemie und Dynamik der Geo-Biosphäre$$cU01$$x0
000040448 588__ $$aDataset connected to Web of Science, Pubmed
000040448 650_2 $$2MeSH$$aAcclimatization: physiology
000040448 650_2 $$2MeSH$$aCircadian Rhythm
000040448 650_2 $$2MeSH$$aElectron Transport
000040448 650_2 $$2MeSH$$aFabaceae: metabolism
000040448 650_2 $$2MeSH$$aFabaceae: physiology
000040448 650_2 $$2MeSH$$aFabaceae: radiation effects
000040448 650_2 $$2MeSH$$aLight
000040448 650_2 $$2MeSH$$aLutein: analogs & derivatives
000040448 650_2 $$2MeSH$$aLutein: metabolism
000040448 650_2 $$2MeSH$$aPhotosynthetic Reaction Center Complex Proteins: physiology
000040448 650_2 $$2MeSH$$aPigments, Biological: metabolism
000040448 650_2 $$2MeSH$$aPlant Leaves: physiology
000040448 650_2 $$2MeSH$$aTrees: physiology
000040448 650_2 $$2MeSH$$aTropical Climate
000040448 650_7 $$00$$2NLM Chemicals$$aPhotosynthetic Reaction Center Complex Proteins
000040448 650_7 $$00$$2NLM Chemicals$$aPigments, Biological
000040448 650_7 $$0127-40-2$$2NLM Chemicals$$aLutein
000040448 650_7 $$2WoSType$$aJ
000040448 65320 $$2Author$$aInga sp.
000040448 65320 $$2Author$$alutein-epoxide
000040448 65320 $$2Author$$aphotoacclimation
000040448 65320 $$2Author$$aphotoprotection
000040448 65320 $$2Author$$aphotosynthesis
000040448 65320 $$2Author$$axanthophyll cycles
000040448 7001_ $$0P:(DE-HGF)0$$aNaumann, M.$$b1
000040448 7001_ $$0P:(DE-HGF)0$$aMartin, J. M.$$b2
000040448 7001_ $$0P:(DE-HGF)0$$aNichol, C.$$b3
000040448 7001_ $$0P:(DE-Juel1)129388$$aRascher, U.$$b4$$uFZJ
000040448 7001_ $$0P:(DE-HGF)0$$aMorosinotto, T.$$b5
000040448 7001_ $$0P:(DE-HGF)0$$aBassi, R.$$b6
000040448 7001_ $$0P:(DE-HGF)0$$aOsmond, B.$$b7
000040448 773__ $$0PERI:(DE-600)1466717-4$$a10.1093/jxb/eri012$$gVol. 56, p. 461 - 468$$p461 - 468$$q56<461 - 468$$tThe @journal of experimental botany$$v56$$x0022-0957$$y2005
000040448 8567_ $$uhttp://dx.doi.org/10.1093/jxb/eri012
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000040448 9141_ $$y2005
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