Stomatal conductance, usually measured in mmol m−2 s−1 by a porometer, estimates the rate of gas exchange (i.e., carbon dioxide uptake) and transpiration (i.e., water loss as water vapor) through the leaf stomata as determined by the degree of stomatal aperture (and therefore the physical resistances to the movement of gases between the air and the interior of the leaf).[1]
The stomatal conductance, or its inverse, stomatal resistance, is under the direct biological control of the leaf through its guard cells, which surround the stomatal pore. The turgor pressure and osmotic potential of guard cells are directly related to the stomatal conductance.
Stomatal conductance is a function of stomatal density, stomatal aperture, and stomatal size. Stomatal conductance is integral to leaf level calculations of transpiration. Multiple studies have shown a direct correlation between the use of herbicides and changes in physiological and biochemical growth processes in plants, particularly non-target plants, resulting in a reduction in stomatal conductance and turgor pressure in leaves.
^Cotthem, Willem Van (2018-01-30). "Stomatal conductance". PLANT STOMATA ENCYCLOPEDIA. Retrieved 2022-05-03.
and 28 Related for: Stomatal conductance information
spaces and the outside air. Stomatal resistance (or its inverse, stomatalconductance) can therefore be calculated from the transpiration rate and humidity...
calculate water use efficiency (A/E), stomatalconductance (gs), intrinsic water use efficiency (A/gs), and sub-stomatal CO2 concentration (Ci). Chamber and...
of CO2 concentration across the stomatal pores. This means that C4 plants have generally lower stomatalconductance, reduced water losses and have generally...
survive under limiting carbon conditions. It is likely that the trees’ stomatalconductance and chloroplast demand for CO2 was higher during this period to increase...
great deal of phenotypic data can be extracted including data on stomatalconductance, growth rates, transpiration and soil water content and plant dynamic...
'The interpretation of the variations in leaf water potential and stomatalconductance found in canopies in the field'". Philosophical Transactions of the...
conditions at any given time. Some of these interactions include stomatalconductance, carotenoid degradation and anthocyanin accumulation, the intervention...
Collatz, GJ; Ribas-Carbo, M; Berry, JA (1992). "Coupled Photosynthesis-StomatalConductance Model for Leaves of C4 Plants". Functional Plant Biology. 19 (5)...
that plants are able use water more efficiently because of reduced stomatalconductance. Plants experiencing higher CO2 concentrations may benefit from a...
The interpretation of the variations in leaf water potential and stomatalconductance found in canopies in the field. Phil. Trans. R. Soc. Lond. B. 273...
transcription followed by protein expression. Research shows that stomatalconductance is heavily dependent on the presence of the PsBs protein. Thus, when...
through the stomata of the plant, and the carboxylation via RuBisCO. Stomatalconductance discriminates against the heavier 13C by 4.4‰. RuBisCO carboxylation...
in Venezuela. Trees can grow up to 20 m. Inga striata have less stomatalconductance and transpiration in soil polluted with clomazone. Groom, A. (2010-09-13)...
F. M. Kelliher, M. B. Kirkham, J. E. Hunt, 'Photosynthesis and stomatalconductance of the New Zealand tree, Meryta sinclairii, grown under two watering...
Emilsson, Tobias; Sjöman, Henrik; Wiström, Björn (January 2024). "Using stomatalconductance capacity during water stress as a tool for tree species selection...
physiological acclimatisation, with response to factors such as stomatalconductance regulation, variation of photosynthetic capacity, and respiration...
Climatic Region on Diurnal Fluctuation of Leaf Water Potential, StomatalConductance, and Leaf Temperature of Grapevines" by Freeman, Kliewer, and Stern...
Effects of frozen storage duration and soil temperature on the stomatalconductance and net photosynthesis of Picea glauca seedlings. Can. J. For. Res...
which when transported up the xylem into the leaves will reduce stomatalconductance and wall extensibility of growing cells. This lowers the rates of...
leaf conductance that can be measured using a porometer. Porometry can be used to screen individual plants. The heritability of stomatalconductance is...
leaf water potential and therefore be beneficial. The stomatalconductance and hydraulic conductance of the branches of taller trees (~30 m) are much higher...
alfalfa-rhizobia symbiosis under salinity: electrolyte leakage, stomatalconductance, and chlorophyll fluorescence". Turkish Journal of Agriculture and...
estimate, "A" or carbon assimilation, "E" or transpiration, "gs" or stomatalconductance, and "Ci" or intracellular CO2. However, it is more common to use...
the effects of E. alphitoides on Quercus robur found it decreased stomatalconductance by 15–30%, did not affect the leaf mass to area ratio, decreased...
regulated in the roots by the endodermis and in the plant foliage by stomatalconductance, and can be interrupted in root and shoot xylem vessels by cavitation...
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