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Photosynthesis is a multipart, biochemical process that occurs in plants as well as in some bacteria. It captures carbon dioxide and solar energy to produce glucose. Glucose stores chemical energy in the form of carbohydrates. The overall biochemical formula of photosynthesis is 6 CO2 + 6 H2O + Light energy → C6H12O6 + 6 O2. Photosynthesis releases oxygen into the atmosphere and is largely responsible for maintaining the Earth’s atmospheric oxygen content.
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Determination of the Glycogen Content in Cyanobacteria
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Engineering cyanobacteria chassis cells toward more efficient photosynthesis.

Guodong Luan1, Shanshan Zhang2, Xuefeng Lu3

  • 1Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101, China; Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101, China.

Current Opinion in Biotechnology
|September 11, 2019
PubMed
Summary

Cyanobacteria biomanufacturing uses synthetic biology to boost photosynthesis for green development. New research reveals efficient photosynthesis pathways, guiding future improvements in cyanobacteria cell factories.

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Area of Science:

  • Biotechnology and synthetic biology applied to microbial systems.

Background:

  • Cyanobacteria hold potential for sustainable biomanufacturing through photosynthesis.
  • Current limitations in photosynthetic efficiency hinder economical applications.
  • Synthetic biology offers tools to enhance cyanobacteria's solar energy and carbon dioxide utilization.

Purpose of the Study:

  • To review recent advancements in improving cyanobacteria photosynthetic productivity.
  • To highlight the role of synthetic biology in optimizing cyanobacteria chassis cells.
  • To discuss findings from a newly identified efficient cyanobacterium for future development.

Main Methods:

  • Review of synthetic biology strategies for metabolic and physiological remodeling of cyanobacteria.
  • Analysis of systematic assays on a novel cyanobacterium with high photosynthetic efficiency.
  • Synthesis of current research to identify future trends.

Main Results:

  • Synthetic biology approaches have successfully improved photosynthesis in cyanobacteria.
  • Remodeling metabolism and physiology enhances solar energy and carbon dioxide assimilation.
  • Characterization of a new cyanobacterium provides insights into efficient photosynthesis.

Conclusions:

  • Optimizing cyanobacteria for biomanufacturing requires efficient photosynthesis systems.
  • Synthetic biology is key to tailoring cyanobacteria for enhanced productivity.
  • Future research should focus on leveraging new discoveries for improved cyanobacteria cell factories.