Maximum leaf conductance driven by CO2 effects on stomatal size and density over geologic time

Maximum leaf conductance driven by CO2 effects on stomatal size and density over geologic time.

Stomatal pores are microscopic structures on the epidermis of leaves formed by 2 specialized guard cells that control the exchange of water vapor and CO(2) between plants and the atmosphere. Stomatal size (S) and density (D) determine maximum leaf diffusive (stomatal) conductance of CO(2) (g(c(max))) to sites of assimilation. Although large variations in D observed in the fossil record have bee...

Influence of salinity on co2 fluxes stomatal conductance and specific leaf eeight of jojoba

Running Head : Leaf hydraulics and stomatal conductance

Manuscript submitted to Plant Physiology (Update) 1 2 Running Head: Leaf hydraulics and stomatal conductance 3 4 Corresponding author: 5 Fulton E. Rockwell 6 Harvard University 7 Department of Organismic and Evolutionary Biology 8 Cambridge, MA 02138. 9 Phone: (617) 496-0603 10 Email: [email protected] 11 12 Research Area: 13 Focus Issue on water: Update on stomata, Ecophysiology and Su...

Effects of CO2 on stomatal conductance: do stomata open at very high CO2 concentrations?

Potato and wheat plants were grown for 50 d at 400, 1000 and 10000 micromoles mol-1 carbon dioxide (CO2). and sweetpotato and soybean were grown at 1000 micromoles mol-1 CO2 in controlled environment chambers to study stomatal conductance and plant water use. Lighting was provided with fluorescent lamps as a 12 h photoperiod with 300 micromoles m-2 s-1 PAR. Mid-day stomatal conductances for pot...

Pore size regulates operating stomatal conductance, while stomatal densities drive the partitioning of conductance between leaf sides.

BACKGROUND AND AIMS Leaf gas exchange is influenced by stomatal size, density, distribution between the leaf adaxial and abaxial sides, as well as by pore dimensions. This study aims to quantify which of these traits mainly underlie genetic differences in operating stomatal conductance (gs) and addresses possible links between anatomical traits and regulation of pore width. METHODS Stomatal r...