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Oxygen evolution measurements on the α and β particles and the starting thylakoid membranes performed in the presence and absence of 25 mM CaCl2 in the assay medium. The oxygen evolution rates are average ± s.d. of triplicate measurements of at least three independent experiments.
| µmol O2 mg Chl−1 h−1 |
||
|---|---|---|
| +CaCl2 | −CaCl2 | |
| thylakoids | 189 ± 8 | 175 ± 12 |
| α particle | 478 ± 6 | 475 ± 12 |
| β particle | 591 ± 20 | 437 ± 16 |
