Sll1252 Coordinates Electron Transport between Plastoquinone and Cytochrome b₆/f Complex in Synechocystis PCC 6803.

ABSTRACT: A mutant, Δsll1252^ins, was generated to functionally characterize Sll1252. Δsll1252^ins exhibited a slow-growth phenotype at 70 µmol photons m^-2 s^-1 and glucose sensitivity. In Δsll1252^ins, the rate of PSII activity was not affected, whereas the whole chain electron transport activity was reduced by 45%. The inactivation of sll1252 led to the upregulation of genes, which were earlier reported to be induced in DBMIB-treated wild-type, suggesting that Sll1252 may be involved in electron transfer from the reduced-PQ pool to Cyt b₆/f. The inhibitory effect of DCMU on PSII activity was similar in both wild-type and Δsll1252^ins. However, the concentration of DBMIB for 50% inhibit

SUBMITTER: Balaga RR 

PROVIDER: S-EPMC10743179 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature