Characterization of the genuine type 2 chromatic acclimation in the two Geminocystis cyanobacteria.

ABSTRACT: Certain cyanobacteria can adjust the wavelengths of light they absorb by remodeling their photosynthetic antenna complex phycobilisome via a process called chromatic acclimation (CA). Although several types of CA have been reported, the diversity of the molecular mechanisms of CA among the cyanobacteria phylum is not fully understood. Here, we characterized the molecular process of CA of Geminocystis sp. strains National Institute of Environmental Studies (NIES)-3708 and NIES-3709. Absorption and fluorescence spectroscopy revealed that both strains dramatically alter their phycoerythrin content in response to green and red light. Whole-genome comparison revealed that the two strains share the typical phycobilisome structure consisting of a central core and peripheral rods, but they differ

SUBMITTER: Hirose Y 

PROVIDER: S-EPMC5737509 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature