Overexpression of the Rieske FeS protein of the Cytochrome b ₆ f complex increases C₄ photosynthesis in Setaria viridis.

ABSTRACT: C₄ photosynthesis is characterised by a CO₂ concentrating mechanism that operates between mesophyll and bundle sheath cells increasing CO₂ partial pressure at the site of Rubisco and photosynthetic efficiency. Electron transport chains in both cell types supply ATP and NADPH for C₄ photosynthesis. Cytochrome b ₆ f is a key control point of electron transport in C₃ plants. To study whether C₄ photosynthesis is limited by electron transport we constitutively overexpressed the Rieske FeS subunit in Setaria viridis. This resulted in a higher Cytochrome b ₆ f content in mesophyll and bundle sheath cells without marked changes in the abundances of other photosynthetic protei

SUBMITTER: Ermakova M 

PROVIDER: S-EPMC6697696 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature