Changing frequency of fluctuating light reveals the molecular mechanism for P700 oxidation in plant leaves.

ABSTRACT: Natural sunlight exceeds the demand of photosynthesis such that it can cause plants to produce reactive oxygen species (ROS), which subsequently cause photo-oxidative damage. Because photosystem I (PSI) is a major source of ROS, plants actively maintain the reaction center chlorophyll of PSI(P700) oxidized under excessive light conditions to alleviate the ROS production. P700 oxidation is universally recognized in photosynthetic organisms as a physiological response to excessive light. However, it is still poorly understood how P700 oxidation is induced in response to fluctuating light with a variety of frequencies. Here, we investigated the relationships of photosynthetic parameters with P700 oxidation in Arabidopsis thaliana under a sine fluctuating light with different frequencies. As t

SUBMITTER: Shimakawa G 

PROVIDER: S-EPMC6508772 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature