A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species
Various aspects of the biochemistry of photosynthetic carbon assimilation in C3 plants are integrated into a form compatible with studies of gas exchange in leaves. These aspects include the kinetic…
On the Relationship Between Carbon Isotope Discrimination and the Intercellular Carbon Dioxide Concentration in Leaves
It is shown how diffusion of gaseous COz can significantly affect carbon isotopic discrimination and a simple relationship between discrimination and the ratio of the intercellular and atmospheric partial pressures of COZ is developed.
Physiological and environmental regulation of stomatal conductance, photosynthesis and transpiration: a model that includes a laminar boundary layer
A Model Predicting Stomatal Conductance and its Contribution to the Control of Photosynthesis under Different Environmental Conditions
In the past, stomatal responses have generally been considered in relation to single environmental variables in part because the interactions between factors have appeared difficult to quantify in a…
Photosynthetic Response and Adaptation to Temperature in Higher Plants
A comparison of plants from contrasting thermol regimes in Thermally Contrasting Climates and adoptive responses in the heat stability 0/ the photosynthetic apparatus highlights the need to understand more fully the role of photosynthesis in climate change.
A Revised Land Surface Parameterization (SiB2) for Atmospheric GCMS. Part I: Model Formulation
Abstract The formulation of a revised land surface parameterization for use within atmospheric general circulation models (GCMs) is presented. The model (SiB2) incorporates several significant…
Coupled Photosynthesis-Stomatal Conductance Model for Leaves of C4 Plants
A simple model for predicting An and g from leaves of C4 plants that is easily parameterised and that predicts many of the important environmental responses is developed and shown to be highly correlated with the data.
Carbon isotope discrimination measured concurrently with gas exchange to investigate CO2 diffusion in leaves of higher plants
Despite uncertainties about various processes affecting carbon isotope composition, the resistance to the transfer of CO2 from the intercellular airspaces to the sites of carboxylation in the mesophyll chloroplasts was estimated and is consistent with, and provides the first direct experimental support for, theoretical equations describing discrimination during photosynthesis.
Carbon isotopes and water use efficiency: sense and sensitivity
The relationship between plant water use efficiency and carbon isotope signatures (δ13C) of plant material is revisited and a model available at http://carbonisotopes.googlepages.com is offered to explore how waterUse efficiency and 13C discrimination are related across leaf and canopy scales.
Photosynthetic Fractionation of the Stable Isotopes of Oxygen and Carbon
The results provide improved estimates of discrimination factors in several reactions prominent in the global O cycle and indicate that photorespiration plays a significant part in determining the isotopic composition of atmospheric oxygen.