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@ARTICLE{Sun:52985,
      author       = {Sun, Z.-L. and Lee, H.-Y. and Matsubara, S. and Hope, A. B.
                      and Pogson, B. J. and Hong, Y.-N. and Chow, W. S.},
      title        = {{P}hotoprotection of residual functional photosystem {II}
                      units that survive illumination in the absence of repair,
                      and their critical role in subsequent recovery},
      journal      = {Physiologia plantarum},
      volume       = {128},
      issn         = {0031-9317},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {PreJuSER-52985},
      pages        = {415 - 425},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Photosystem II (PSII) complexes, which split water into
                      oxygen, protons and electrons in photosynthesis, require
                      light but are also inactivated by it. Recovery of PSII from
                      photoinactivation requires de novo protein synthesis. PSII
                      in capsicum leaf segments were photoinactivated in the
                      absence of chloroplast-encoded protein synthesis. At large
                      photon exposures and despite the absence of repair, a
                      residual fraction of PSII remained functional, being ca
                      0.08–0.2 depending on the ease of gas exchange in the
                      tissue. This study revealed that the residual functional
                      PSII was photoprotected by both (1) reaction-center
                      quenching of excitation energy by photoinactivated PSII even
                      when little or no PSII activity was permitted, and (2)
                      antenna quenching, which was dependent on a trans-thylakoid
                      pH gradient sustained mainly by linear electron transport
                      and facilitated by the residual functional PSII complexes
                      themselves. Significantly, little or no contribution to
                      photoprotection of PSII was observed from cyclic electron
                      flow around PSI. Further, the small residual functional PSII
                      population was critical for recovery of the photoinactivated
                      PSII complexes. Thus, photoinactivated and residual
                      functional PSII complexes in leaves play a mutually
                      beneficial role in each other’s ultimate survival.},
      cin          = {ICG-III},
      ddc          = {580},
      cid          = {I:(DE-Juel1)VDB49},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000241390000004},
      doi          = {10.1111/j.1399-3054.2006.00754.x},
      url          = {https://juser.fz-juelich.de/record/52985},
}