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Photosynthetic Efficiency And Mesophyll Conductance Are Unaffected In Arabidopsis Thaliana Aquaporin Knock-Out Lines, Johannes Kromdijk, Katarzyna Głowacka, Stephen P. Long
Photosynthetic Efficiency And Mesophyll Conductance Are Unaffected In Arabidopsis Thaliana Aquaporin Knock-Out Lines, Johannes Kromdijk, Katarzyna Głowacka, Stephen P. Long
Department of Biochemistry: Faculty Publications
Improving photosynthetic efficiency is widely regarded as a major route to achieving much-needed yield gains in crop plants. In plants with C3 photosynthesis, increasing the diffusion conductance for CO2 transfer from substomatal cavity to chloroplast stroma (gm) could help to improve the efficiencies of CO2 assimilation and photosynthetic water use in parallel. The diffusion pathway from substomatal cavity to chloroplast traverses cell wall, plasma membrane, cytosol, chloroplast envelope membranes, and chloroplast stroma. Specific membrane intrinsic proteins of the aquaporin family can facilitate CO2 diffusion across membranes. Some of these aquaporins, such as PIP1;2 …