Towards engineering carboxysomes into C3 plants

Hanson, Maureen R. and Lin, Myat T. and Carmo-Silva, Ana Elizabete and Parry, Martin Afan John (2016) Towards engineering carboxysomes into C3 plants. The Plant Journal, 87 (1). pp. 38-50. ISSN 0960-7412

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Photosynthesis in C3 plants is limited by features of the carbon-fixing enzyme Rubisco, which exhibits a low turnover rate and can react with O2 instead of CO2, leading to photorespiration. In cyanobacteria, bacterial microcompartments known as carboxysomes improve the efficiency of photosynthesis by concentrating CO2 near the enzyme Rubisco. Cyanobacterial Rubisco enzymes are faster than those of C3 plants, though have lower specificity toward CO2 than the land plant enzyme. Replacement of land plant Rubisco by faster bacterial variants with lower CO2 specificity will improve photosynthesis only if a microcompartment capable of concentrating CO2 can also be installed into the chloroplast. We review current information about cyanobacterial microcompartments and carbon-concentrating mechanisms, plant transformation strategies, replacement of Rubisco in a model C3 plant with cyanobacterial Rubisco, and progress toward synthesizing a carboxysome in chloroplasts.

Item Type:
Journal Article
Journal or Publication Title:
The Plant Journal
Additional Information:
This is the peer reviewed version of the following article: Hanson, M. R., Lin, M. T., Carmo-Silva, A. E. and Parry, M. A.J. (2016), Towards engineering carboxysomes into C3 plants. Plant J. Accepted Author Manuscript. doi:10.1111/tpj.13139 which has been published in final form at This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Uncontrolled Keywords:
?? carboxysomecarbon concentration systemc3 plantsrubiscoplant sciencecell biologygenetics ??
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Deposited On:
16 May 2016 13:02
Last Modified:
19 Mar 2024 00:33