True oxygen reduction capacity during photosynthetic electron transfer in thylakoids and intact leaves.

ABSTRACT: Reactive oxygen species (ROS) are generated in electron transport processes of living organisms in oxygenic environments. Chloroplasts are plant bioenergetics hubs where imbalances between photosynthetic inputs and outputs drive ROS generation upon changing environmental conditions. Plants have harnessed various site-specific thylakoid membrane ROS products into environmental sensory signals. Our current understanding of ROS production in thylakoids suggests that oxygen (O2) reduction takes place at numerous components of the photosynthetic electron transfer chain (PETC). To refine models of site-specific O2 reduction capacity of various PETC components in isolated thylakoids of Arabidopsis thaliana, we quantified the stoichiometry of oxygen production and consumption reactions associated

SUBMITTER: Fitzpatrick D 

PROVIDER: S-EPMC9070831 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature