Table II.

Summary of partial reactions

Partial ReactionElectron DonorElectron AcceptorRate1-a
TAP-PTAP-S
%
In vivo O2evolution30  ± 631  ± 4
PSII and PSIH2OMV39  ± 337  ± 4
PSIIH2OFerricyanide45  ± 1356  ± 6
PSIDCPIPH2 MV85  ± 12135  ± 16
PQ, Cytb 6-f, and PSIDHQMV82  ± 1788  ± 13
PSII (after O2-evolving complex)DPCDCPIP55  ± 1451  ± 3

Absolute values for partial reactions in unstarved cells (μmol O2 mg−1 Chl h−1) range from: −658 to −593 (H2O to MV), +304 to +377 (H2O to ferricyanide), −869 to −716 (DCPIPH2 to MV), and −1122 to −979 (DHQ to MV). DPC to DCPIP was measured photometrically. Values are the result of three independent experiments.

    • F1-a Percentage ± se of the absolute values of unstarved cells.