Ivanov AG, Sane PV, Krol M, Gray GR, Balseris A, Savitch LV, Oquist G, Hüner NPA. Acclimation to temperature and irradiance modulates PSII charge recombination.
FEBS Lett 2006;
580:2797-802. [PMID:
16674953 DOI:
10.1016/j.febslet.2006.04.018]
[Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2006] [Revised: 04/07/2006] [Accepted: 04/10/2006] [Indexed: 11/16/2022]
Abstract
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 S(2)Q(B)(-) and S(2)Q(A)(-) charge recombinations within photosystem II reaction centers. This is discussed in terms of photoprotection through non-radiative charge recombination.
Collapse