Cited by 870Microbial Metabolic Engineering and BioproductionAlgal biology and biofuel productionPhotosynthetic Processes and Mechanisms

Direct photosynthetic recycling of carbon dioxide to isobutyraldehyde

Atsumi, Shota, Higashide, Wendy, Liao, James C·2009·Nature Biotechnology

Abstract

Global climate change has stimulated efforts to reduce CO(2) emissions. One approach to addressing this problem is to recycle CO(2) directly into fuels or chemicals using photosynthesis. Here we genetically engineered Synechococcus elongatus PCC7942 to produce isobutyraldehyde and isobutanol directly from CO(2) and increased productivity by overexpression of ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco). Isobutyraldehyde is a precursor for the synthesis of other chemicals, and isobutanol can be used as a gasoline substitute. The high vapor pressure of isobutyraldehyde allows in situ product recovery and reduces product toxicity. The engineered strain remained active for 8 d and produced isobutyraldehyde at a higher rate than those reported for ethanol, hydrogen or lipid production by cyanobacteria or algae. These results underscore the promise of direct bioconversion of CO(2) into fuels and chemicals, which bypasses the need for deconstruction of biomass.

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Crossref · 10.1038/nbt.1586

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  • Engineering the isobutanol biosynthetic pathway and overexpressing Rubisco resulted in enhanced production of isobutyraldehyde and isobutanol (6,230 and 3,000 μg L−1 h−1, respectively) in Synechococcus elongatus PCC 7942.

    “Engineering isobutanol biosynthetic pathway and overexpressing Rubisco have resulted in an enhanced production of isobutyraldehayde and isobutanol (6,230 and 3,000 μg L−1 h−1, respectively) in Synechococcus elongatus PCC 7942 (Atsumi et al. 2009).”

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Authors
Atsumi, S., Higashide, W., & Liao, J. C.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Liao, James C
Venue
Nature Biotechnology
Published
2009-11-15
Volume
27
Issue
12
Pages
1177-1180
ISSN
  • 0733-222X (ISSN-L)
  • 1087-0156
  • 1546-1696
OpenAlex
W2117741404
Cited by
870
References
36
Citations by year
2026: 18 · 2025: 34 · 2024: 29 · 2023: 38 · 2022: 51 · 2021: 61 · 2020: 49 · 2019: 42 · 2018: 46 · 2017: 55 · 2016: 82 · 2015: 74 · 2014: 75 · 2013: 65 · 2012: 72
FWCI
20.11
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
Keywords
CO2 recycling, isobutyraldehyde, isobutanol, Anacystis nidulans, cyanobacteria, photosynthetic carbon fixation, in situ product recovery, biofuels, bio-based chemicals
MeSH terms
Aldehydes, Carbon Dioxide, Conservation of Natural Resources, Light, Photosynthesis, Synechococcus, Biofuels

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