CO2 Concentrating Mechanism of C4 Photosynthesis: Permeability of Isolated Bundle Sheath Cells to Inorganic Carbon

R. T. Furbank, C. L. D. Jenkins, M. D. Hatch
1989 Plant Physiology  
Diffusion of inorganic carbon into isolated bundle sheath cells from a variety of C4 species was characterized by coupling inward diffusion of CO2 to photosynthetic carbon assimilation. The average permeability coefficient for CO2 (Pco2) for five representatives from the three decarboxylation types was approximately 20 micromoles per minute per milligram chlorophyll per millimolar, on a leaf chlorophyll basis. The average value for the NAD-ME species Panicum miliaceum (10 determinations) was 26
more » ... with a standard deviation of 6 micromoles per minute per milligram chlorophyll per millimolar, on a leaf chlorophyll basis. A Pc02 of at www.plantphysiol.org on April 30, 2019 -Published by Downloaded from
doi:10.1104/pp.91.4.1364 pmid:16667187 pmcid:PMC1062192 fatcat:6wk7cylebfdspeq4qezgkw2poi