Open AccessPhotoregulation of Cellular Morphology during Complementary Chromatic Adaptation Requires Sensor-Kinase-Class Protein RcaE in Fremyella diplosiphon
Author(s) -
Juliana R. Bordowitz,
Beronda L. Montgomery
Publication year - 2008
Publication title -
journal of bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.652
H-Index - 246
eISSN - 1067-8832
pISSN - 0021-9193
DOI - 10.1128/jb.00018-08
Subject(s) - biology , protein filament , chromatic adaptation , mutant , microbiology and biotechnology , phycobilisome , adaptation (eye) , cyanobacteria , genetics , gene , bacteria , neuroscience , physics , optics
We used wild-type UTEX481; SF33, a shortened-filament mutant strain that shows normal complementary chromatic adaptation pigmentation responses; and FdBk14, an RcaE-deficient strain that lacks light-dependent pigmentation responses, to investigate the molecular basis of the photoregulation of cellular morphology in the cyanobacteriumFremyella diplosiphon . Detailed microscopic and biochemical analyses indicate that RcaE is required for the photoregulation of cell and filament morphologies ofF. diplosiphon in response to red and green light.