Open AccessMolecular bases and photobiological consequences of light intensity adaptation in photosynthetic organisms
Author(s) -
Chen Yb,
Dion G. Durnford,
Michal Koblížek,
P. G. Falkowski
Publication year - 2003
Language(s) - English
Resource type - Reports
DOI - 10.2172/820031
Subject(s) - photosynthesis , plastid , electron transport chain , photosystem ii , light intensity , photosystem , gene , redox , photosystem i , adaptation (eye) , biophysics , gene expression , biology , chemistry , microbiology and biotechnology , botany , chloroplast , biochemistry , physics , optics , neuroscience , organic chemistry
By applying a combination of light transitions, uncouplers, and inhibitors of photosynthetic electron transport inhibitors we modulate the redox poise of many components in the plastid and examine the pattern of expression of cab1 gene. This gene encodes the major light harvesting protein that services photosystem II. While our results have confirmed our own previous finding that light intensity regulation of cab1 gene expression is signaled by the redox state of the PQ pool, we have also identified additional sensor(s) located in the PET chain