Regulation of Ferredoxin-NADP⁺ Oxidoreductase to Cyclic Electron Transport in High Salinity Stressed Pyropia yezoensis.

ABSTRACT: Pyropia yezoensis can survive the severe water loss that occurs during low tide, making it an ideal species to investigate the acclimation mechanism of intertidal seaweed to special extreme environments. In this study, we determined the effects of high salinity on photosynthesis using increasing salinity around algal tissues. Both electron transport rates, ETR (I) and ETR (II), showed continuous decreases as the salinity increased. However, the difference between these factors remained relatively stable, similar to the control. Inhibitor experiments illustrated that there were at least three different cyclic electron transport pathways. Under conditions of severe salinity, NAD(P)H could be exploited as an endogenous electron donor to reduce the plastoquinone pool in Py. yezoensis

SUBMITTER: Yu B 

PROVIDER: S-EPMC6068275 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature