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Photoinhibition of PSII in wild-type and photorespiratory pathway mutants during incubation in light in air. Detached leaves from wild-type and photorespiratory pathway mutants were exposed to light at 200 μmol photons m−2 s−1 in the absence or presence of 1 mm chloramphenicol in air. Maximal photochemical efficiency of PSII (Fv/Fm) was measured after dark adaptation for 15 min. Values are mean ± sd (bars) of results from three independent experiments.
