Control of a four-color sensing photoreceptor by a two-color sensing photoreceptor reveals complex light regulation in cyanobacteria.

ABSTRACT: Photoreceptors are biologically important for sensing changes in the color and intensity of ambient light and, for photosynthetic organisms, processing this light information to optimize food production through photosynthesis. Cyanobacteria are an evolutionarily and ecologically important prokaryotic group of oxygenic photosynthesizers that contain cyanobacteriochrome (CBCR) photoreceptors, whose family members sense nearly the entire visible spectrum of light colors. Some cyanobacteria contain 12 to 15 different CBCRs, and many family members contain multiple light-sensing domains. However, the complex interactions that must be occurring within and between these photoreceptors remain unexplored. Here we describe the regulation and photobiology of a unique CBCR called IflA (influenced by f

SUBMITTER: Bussell AN 

PROVIDER: S-EPMC3732953 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature