Mesophyll conductance in Zea mays responds transiently to CO2 availability: implications for transpiration efficiency in C-4 crops

摘要

Mesophyll conductance (g(m)) describes the movement of CO2 from the intercellular air spaces below the stomata to the site of initial carboxylation in the mesophyll. In contrast with C-3-g(m), little is currently known about the intraspecific variation in C-4-g(m) or its responsiveness to environmental stimuli.