Article
Irradiance and phenotype: comparative eco-development of sun and shade leaves in relation to photosynthetic CO2 diffusion.
Journal of experimental botany - 1 Jan 2006
Terashima Ichiro, Hanba Yuko T, Tazoe Youshi, Vyas Poonam, Yano Satoshi
Abstract excerpt
The subject of this paper, sun leaves are thicker and show higher photosynthetic rates than the shade leaves, is approached in two ways. The first seeks to answer the question: why are sun leaves thicker than shade leaves? To do this, CO2 diffusion within a leaf is examined first. Because affinity of Rubisco for CO2 is low, the carboxylation of ribulose 1,5-bisphosphate is competitively inhibited by O2, and the...
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