The Overexpression of Phasin and Regulator Genes Promoting the Synthesis of Polyhydroxybutyrate in Cupriavidus necator H16 under Nonstress Conditions.

ABSTRACT: Cupriavidus necator H16 is an ideal strain for polyhydroxybutyrate (PHB) production from CO₂. Low-oxygen stress can induce PHB synthesis in C. necator H16 while reducing bacterial growth under chemoautotrophic culture. The optimum growth and PHB synthesis of C. necator H16 cannot be achieved simultaneously, which restricts PHB production. The present study was initiated to address the issue through comparative transcriptome and gene function analysis. First, the comparative transcriptome of C. necator H16 chemoautotrophically cultured under low-oxygen stress and nonstress conditions was studied. Three types of genes were discovered to have differential levels of transcription: those involving PHB enzymatic synthesis, PHB granulation, and regulators. Under low-oxygen stress condi

SUBMITTER: Tang R 

PROVIDER: S-EPMC8788698 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature