Physiological Roles of Flavodiiron Proteins and Photorespiration in the Liverwort Marchantia polymorpha.

ABSTRACT: Against the potential risk in oxygenic photosynthesis, that is, the generation of reactive oxygen species, photosynthetic electron transport needs to be regulated in response to environmental fluctuations. One of the most important regulations is keeping the reaction center chlorophyll (P700) of photosystem I in its oxidized form in excess light conditions. The oxidation of P700 is supported by dissipating excess electrons safely to O₂, and we previously found that the molecular mechanism of the alternative electron sink is changed from flavodiiron proteins (FLV) to photorespiration in the evolutionary history from cyanobacteria to plants. However, the overall picture of the regulation of photosynthetic electron transport is still not clear in bryophytes, the evolutionary interm

SUBMITTER: Shimakawa G 

PROVIDER: S-EPMC8418088 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature