Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 68, Issue 14, Pages 3717-3737Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erx133
Keywords
Algae; carboxysome; cyanobacteria; photosynthesis; pyrenoid; Rubisco; transporter
Categories
Funding
- UK Biotechnology and Biological Sciences Research Council
- US National Science Foundation as part of the Combining Algal and Plant Photosynthesis (CAPP) consortium [BB/I024453/1, BB/M006468/1]
- University of Illinois as part of the Realizing Increased Photosynthetic Efficiency (RIPE) project
- Bill & Melinda Gates Foundation
- Australian Research Council, Centre of Excellence grant for 'Translational Photosynthesis' [CE140100015]
- BBSRC [BB/M006468/1, BB/I024453/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/I024453/1, BB/M006468/1] Funding Source: researchfish
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Growth and productivity in important crop plants is limited by the inefficiencies of the C-3 photosynthetic pathway. Introducing CO2-concentrating mechanisms (CCMs) into C-3 plants could overcome these limitations and lead to increased yields. Many unicellular microautotrophs, such as cyanobacteria and green algae, possess highly efficient biophysical CCMs that increase CO2 concentrations around the primary carboxylase enzyme, Rubisco, to enhance CO2 assimilation rates. Algal and cyanobacterial CCMs utilize distinct molecular components, but share several functional commonalities. Here we outline the recent progress and current challenges of engineering biophysical CCMs into C-3 plants. We review the predicted requirements for a functional biophysical CCM based on current knowledge of cyanobacterial and algal CCMs, the molecular engineering tools and research pipelines required to translate our theoretical knowledge into practice, and the current challenges to achieving these goals.
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