Article
Group 2 sigma factor mutant ΔsigCDE of the cyanobacterium Synechocystis sp. PCC 6803 reveals functionality of both carotenoids and flavodiiron proteins in photoprotection of photosystem II.
Plant & cell physiology - 1 Nov 2013
Hakkila Kaisa, Antal Taras, Gunnelius Liisa, Kurkela Juha, Matthijs Hans C P, Tyystjärvi Esa, Tyystjärvi Taina
Abstract excerpt
Adjustment of gene expression during acclimation to stress conditions, such as bright light, in the cyanobacterium Synechocystis sp. PCC 6803 depends on four group 2 σ factors (SigB, SigC, SigD, SigE). A ΔsigCDE strain containing the stress-responsive SigB as the only functional group 2 σ factor appears twice as resistant to photoinhibition of photosystem II (PSII) as the control strain. Microarray analyses of...
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