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Acclimation to temperature and irradiance modulates PSII charge recombination.
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2006 (English)In: FEBS Letters, ISSN 0014-5793, Vol. 580, no 11, 2797-802 p.Article in journal (Refereed) Published
Abstract [en]

Acclimation of wild type and the chlorina F2 mutant of barley to either high light or low temperature results in a 2- to 3-fold increase in non-photochemical quenching which occurred independently of either energy-dependent quenching (qE), xanthophyll cycle-mediated antenna quenching or state transitions. Results of in vivo thermoluminescence measurements used to address this conundrum indicated that excitation pressure regulates the temperature gap for Click to view the MathML source and Click to view the MathML source charge recombinations within photosystem II reaction centers. This is discussed in terms of photoprotection through non-radiative charge recombination.

Place, publisher, year, edition, pages
2006. Vol. 580, no 11, 2797-802 p.
Keyword [en]
Acclimatization/*physiology, Hordeum/genetics/growth & development/*metabolism/*radiation effects, Light, Photosynthesis/radiation effects, Photosystem II Protein Complex/genetics/*metabolism, Temperature
URN: urn:nbn:se:umu:diva-15867DOI: doi:10.1016/j.febslet.2006.04.018PubMedID: 16674953OAI: diva2:155539
Available from: 2007-08-03 Created: 2007-08-03 Last updated: 2011-01-11Bibliographically approved

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Öquist, Gunnar
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Plant PhysiologyUmeå Plant Science Centre

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