Construction of a Rhodobacter sphaeroides Strain That Efficiently Produces Hydrogen Gas from Acetate without Poly(β-Hydroxybutyrate) Accumulation: Insight into the Role of PhaR in Acetate Metabolism
Tetsu Shimizu, Haruhiko Teramoto, Masayuki Inui
Abstract
production from acetate by purple nonsulfur phototrophic bacteria. This study further suggests that polyhydroxyalkanoate is not only a storage substance for carbon and energy in bacteria, but may also act as a signaling molecule that mediates bacterial metabolic adaptations to specific environments. This notion will be helpful for understanding the physiology of polyhydroxyalkanoate-producing bacteria, as well as for their metabolic engineering via synthetic biology.
Topics & Concepts
Rhodobacter sphaeroidesRhodospirillaceaeBacteriaPhototrophRhodospirillalesStrain (injury)ChemistryBiochemistryYield (engineering)MetabolismPurple bacteriaPhotosynthesisMicrobiologyBiologyMaterials sciencePhotosynthetic reaction centreMetallurgyGeneticsAnatomybiodegradable polymer synthesis and propertiesMicrobial Metabolic Engineering and BioproductionAmino Acid Enzymes and Metabolism