Cited by 170Microbial Metabolic Engineering and Bioproductionbiodegradable polymer synthesis and propertiesAlgal biology and biofuel production

Engineering cyanobacteria for photosynthetic production of 3-hydroxybutyrate directly from CO2

Wang, Bo, Pugh, Shawn, Nielsen, David R., Zhang, Weiwen, Meldrum, Deirdre R.·2013·Metabolic Engineering

Abstract

(S)- and (R)-3-hydroxybutyrate (3HB) are precursors to synthesize the biodegradable plastics polyhydroxyalkanoates (PHAs) and many fine chemicals. To date, however, their production has been restricted to petroleum-based chemical industry and sugar-based microbial fermentation, limiting its sustainability and economical feasibility. With the ability to fix CO2 photosynthetically, cyanobacteria have attracted increasing interest as a biosynthesis platform to produce fuels and chemicals from alternative renewable resources. To this end, synthesis metabolic pathways have been constructed and optimized in cyanobacterium Synechocystis sp. PCC 6803 to photosynthetically produce (S)- and (R)-3HB directly from CO2. Both types of 3HB molecules were produced and readily secreted from Synechocystis cells without over-expression of transporters. Additional inactivation of the competing pathway by deleting slr1829 and slr1830 (encoding PHB polymerase) from the Synechocystis genome further promoted the 3HB production. Up to 533.4mg/L 3HB has been produced after photosynthetic cultivation of the engineered cyanobacterium Synechocystis TABd for 21 days. Further analysis indicated that the phosphate consumption during the photoautrophic growth and the concomitant elevated acetyl-CoA pool acted as a key driving force for 3HB biosynthesis in Synechocystis. For the first time, the study has demonstrated the feasibility of photosynthetic production of (S)- and (R)-3HB directly from sunlight and CO2.

Integrity signals

Registry

Crossref · 10.1016/j.ymben.2013.01.001

Cites

54 of 54 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Synechococcus elongatus PCC 7942 has relatively fast growth, well-characterised physiology, and the availability of established genetic manipulation techniques.

    “This strain has become a key experimental platform due to its relatively fast growth, well-characterised physiology, and the availability of established genetic manipulation techniques [59,60].”

Cites

Flagged first, then by citations

2 of the 56 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Wang, B., Pugh, S., Nielsen, D. R., Zhang, W., & Meldrum, D. R.
Affiliations
Arizona State University (US)
Corresponding author
  • Zhang, Weiwen
  • Meldrum, Deirdre R.
Venue
Metabolic Engineering
Publisher
Elsevier BV
Published
2013-03
Volume
16
Pages
68-77
ISSN
1096-7176 (ISSN-L)
OpenAlex
W2012010696
Cited by
170
References
56
Citations by year
2026: 3 · 2025: 8 · 2024: 9 · 2023: 6 · 2022: 15 · 2021: 17 · 2020: 7 · 2019: 12 · 2018: 14 · 2017: 17 · 2016: 17 · 2015: 24 · 2014: 13 · 2013: 8
FWCI
9.25
Type
journal article
Language
en
Update notices
erratum (2014-01-01)
Open access
closed
Locations
  • Metabolic Engineering (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Petroleum Technology Alliance Canada
  • National Key Research and Development Program of China
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
Keywords
beta-hydroxybutyrate, cyanobacteria, Synechocystis sp. PCC 6803, photosynthetic carbon fixation, polyhydroxyalkanoates, biodegradable plastics, metabolic pathway engineering, phosphate consumption, acetyl-CoA pool, photoautotrophic cultivation
MeSH terms
Bacterial Proteins, Carrier Proteins, Photosynthesis, Gene Expression, Gene Deletion, 3-Hydroxybutyric Acid, Synechocystis, Metabolic Engineering

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review