Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10877049 | Journal of Plant Physiology | 2005 | 14 Pages |
Abstract
In the first 4Â h in the light following the heat pulse, the AT-band and the K-step disappeared in parallel, indicating the loss of this restricted activity of PSII. This phase was followed by a recovery period, during which PSII-activity was gradually restored in the light. In darkness, no recovery, except for the membrane permeability, was observed. A model is presented that accounts for (i) the damage induced by the heat pulse on the membrane architecture and on the PSII donor side, (ii) the light-dependent removal of the impaired reaction centers from the disorganized membrane, and (iii) the subsequent light-independent restoration of the membrane permeability and the de novo synthesis of the PSII reaction centers in the light.
Keywords
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Authors
Szilvia Z. Tóth, Gert Schansker, Judit Kissimon, László Kovács, GyoËzoË Garab, Reto J. Strasser,