Rights statement: This is the peer reviewed version of the following article: Lundgren, M.R. (2020), C2 photosynthesis: a promising route towards crop improvement? New Phytologist 228 (6), doi:10.1111/nph.16494 which has been published in final form at https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.16494 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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Final published version
Research output: Contribution to Journal/Magazine › Review article › peer-review
Research output: Contribution to Journal/Magazine › Review article › peer-review
}
TY - JOUR
T1 - C2 photosynthesis
T2 - a promising route towards crop improvement?
AU - Lundgren, Marjorie
N1 - This is the peer reviewed version of the following article: Lundgren, M.R. (2020), C2 photosynthesis: a promising route towards crop improvement? New Phytologist 228 (6), doi:10.1111/nph.16494 which has been published in final form at https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.16494 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - C2 photosynthesis is a carbon concentrating mechanism that can increase net CO2 assimilation by capturing, concentrating, and re-assimilating CO2 released by photorespiration. Empirical and modelling studies indicate that C2 plants assimilate more carbon than C3 plants under high temperature, bright light, and low CO2 conditions. I argue that engineering C2 photosynthesis into C3 crops is a promising approach to improve photosynthetic performance under these, and temporally heterogeneous, environments and review the modifications that may re-create a C2 phenotype in C3 plants. While a C2 engineering program would encounter many of the same challenges faced by C4 engineering programs, the simpler leaf anatomical requirements make C2 engineering a feasible approach to improve crops in the medium term.
AB - C2 photosynthesis is a carbon concentrating mechanism that can increase net CO2 assimilation by capturing, concentrating, and re-assimilating CO2 released by photorespiration. Empirical and modelling studies indicate that C2 plants assimilate more carbon than C3 plants under high temperature, bright light, and low CO2 conditions. I argue that engineering C2 photosynthesis into C3 crops is a promising approach to improve photosynthetic performance under these, and temporally heterogeneous, environments and review the modifications that may re-create a C2 phenotype in C3 plants. While a C2 engineering program would encounter many of the same challenges faced by C4 engineering programs, the simpler leaf anatomical requirements make C2 engineering a feasible approach to improve crops in the medium term.
KW - bundle sheath cells
KW - C2 photosynthesis
KW - C3‐C4 intermediate
KW - carbon concentrating mechanism
KW - crop improvement
KW - food security
KW - glycine shuttle
KW - photorespiratory CO2 pump
U2 - 10.1111/nph.16494
DO - 10.1111/nph.16494
M3 - Review article
VL - 228
SP - 1734
EP - 1740
JO - New Phytologist
JF - New Phytologist
SN - 0028-646X
IS - 6
ER -