Post-transcriptional control in the regulation of polyhydroxyalkanoates synthesis

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The large production of non-degradable petrol-based plastics has become a major global issue due to its environmental pollution. Biopolymers produced by microorganisms such as polyhy-droxyalkanoates (PHAs) are gaining potential as a sustainable alternative, but the high cost associated with their industrial production has been a limiting factor. Post-transcriptional regulation is a key step to control gene expression in changing environments and has been reported to play a major role in numerous cellular processes. However, limited reports are available concerning the regulation of PHA accumulation in bacteria, and many essential regulatory factors still need to be identified. Here, we review studies where the synthesis of PHA has been reported to be regulated at the post-transcriptional level, and we analyze the RNA-mediated networks involved. Finally, we discuss the forthcoming research on riboregulation, synthetic, and metabolic engineering which could lead to improved strategies for PHAs synthesis in industrial production, thereby reducing the costs currently associated with this procedure.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme. BterBioPlastics - 867437
Original languageEnglish
Article number853
Issue number8
Publication statusPublished - 20 Aug 2021


  • Mcl-PHA
  • Polyhydroxyalkanoates
  • Post-transcriptional regulation
  • Riboregulation
  • Scl-PHA
  • Small non-coding RNAs


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