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000022170 084__ $$2WoS$$aBiochemistry & Molecular Biology
000022170 1001_ $$0P:(DE-HGF)0$$aBonente, G.$$b0
000022170 245__ $$aAcclimation of Chlamydomonas reinhardtii to different growth irradiances
000022170 260__ $$aBethesda, Md.$$bSoc.$$c2012
000022170 300__ $$a5833 - 5847
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000022170 440_0 $$03091$$aJournal of Biological Chemistry$$v287$$x0021-9258$$y8
000022170 500__ $$aThis work was supported by European Union Project 245070 FP7-KBBE-2009-3 SUNBIOPATH.
000022170 520__ $$aWe report on the changes the photosynthetic apparatus of Chlamydomonas reinhardtii undergoes upon acclimation to different light intensity. When grown in high light, cells had a faster growth rate and higher biomass production compared with low and control light conditions. However, cells acclimated to low light intensity are indeed able to produce more biomass per photon available as compared with high light-acclimated cells, which dissipate as heat a large part of light absorbed, thus reducing their photosynthetic efficiency. This dissipative state is strictly dependent on the accumulation of LhcSR3, a protein related to light-harvesting complexes, responsible for nonphotochemical quenching in microalgae. Other changes induced in the composition of the photosynthetic apparatus upon high light acclimation consist of an increase of carotenoid content on a chlorophyll basis, particularly zeaxanthin, and a major down-regulation of light absorption capacity by decreasing the chlorophyll content per cell. Surprisingly, the antenna size of both photosystem I and II is not modulated by acclimation; rather, the regulation affects the PSI/PSII ratio. Major effects of the acclimation to low light consist of increased activity of state 1 and 2 transitions and increased contributions of cyclic electron flow.
000022170 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000022170 536__ $$0G:(EU-Grant)245070$$aSUNBIOPATH - Towards a better sunlight to biomass conversion efficiency in microalgae (245070)$$c245070$$fFP7-KBBE-2009-3$$x1
000022170 588__ $$aDataset connected to Web of Science, Pubmed
000022170 650_2 $$2MeSH$$aAdaptation, Physiological: radiation effects
000022170 650_2 $$2MeSH$$aChlamydomonas reinhardtii: growth & development
000022170 650_2 $$2MeSH$$aChlamydomonas reinhardtii: metabolism
000022170 650_2 $$2MeSH$$aChlamydomonas reinhardtii: physiology
000022170 650_2 $$2MeSH$$aChlamydomonas reinhardtii: radiation effects
000022170 650_2 $$2MeSH$$aDarkness
000022170 650_2 $$2MeSH$$aDose-Response Relationship, Radiation
000022170 650_2 $$2MeSH$$aElectron Transport: radiation effects
000022170 650_2 $$2MeSH$$aLight
000022170 650_2 $$2MeSH$$aLight-Harvesting Protein Complexes: metabolism
000022170 650_2 $$2MeSH$$aPhotosynthesis: radiation effects
000022170 650_2 $$2MeSH$$aPhotosystem I Protein Complex: metabolism
000022170 650_2 $$2MeSH$$aPhotosystem II Protein Complex: metabolism
000022170 650_2 $$2MeSH$$aPigments, Biological: metabolism
000022170 650_7 $$00$$2NLM Chemicals$$aLight-Harvesting Protein Complexes
000022170 650_7 $$00$$2NLM Chemicals$$aPhotosystem I Protein Complex
000022170 650_7 $$00$$2NLM Chemicals$$aPhotosystem II Protein Complex
000022170 650_7 $$00$$2NLM Chemicals$$aPigments, Biological
000022170 650_7 $$2WoSType$$aJ
000022170 7001_ $$0P:(DE-HGF)0$$aPippa, S.$$b1
000022170 7001_ $$0P:(DE-HGF)0$$aCastellano, S.$$b2
000022170 7001_ $$0P:(DE-Juel1)VDB38860$$aBassi, R.$$b3$$uFZJ
000022170 7001_ $$0P:(DE-HGF)0$$aBallottari, M.$$b4
000022170 773__ $$0PERI:(DE-600)1474604-9$$a10.1074/jbc.M111.304279$$gVol. 287, p. 5833 - 5847$$p5833 - 5847$$q287<5833 - 5847$$tThe @journal of biological chemistry$$v287$$x0021-9258$$y2012
000022170 8567_ $$2Pubmed Central$$uhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3285353
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