Journal
JOURNAL OF BACTERIOLOGY
Volume 193, Issue 1, Pages 292-295Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JB.00984-10
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- Federal Ministry of Education and Research (BMBF)
- EU/NEST
- German Research Foundation (DFG) [SFB 480]
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While methyl viologen had only a small effect on P700(+) rereduction kinetics after far-red pulses in KCN-treated wild-type Synechocystis sp. strain PCC6803 and an NdhF3/NdhF4 (NdhF3/F4)-defective mutant, it involved a rather slow P700(+) rereduction in an NdhF1-defective mutant. This strongly indicates that (i) active electron flow from metabolites to plastoquinone is suppressed upon deletion of ndhF1 and (ii) photosystem 1-mediated cyclic electron transport is dependent on NdhF3/F4-type NDH-1 complexes.
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