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Estimation of mesophyll conductance to CO2 flux by three different methods


, : Estimation of mesophyll conductance to CO2 flux by three different methods. Plant physiology 98(4): 1437-1443

The resistance to diffusion of CO2 from the intercellular airspaces within the leaf through the mesophyll to the sites of carboxylation during photosynthesis was measured using three different techniques, The three techniques include a method based on discrimination against the heavy stable isotope of carbon, 13C, and two modeling methods. The methods rely upon different assumptions, but the estimates of mesophyll conductance were similar with all three methods. The mesophyll conductance of leaves from a number of species was about 1.4 times the stomatal conductance for CO2 diffusion determined in unstressed plants at high light. The relatively low CO2 partial pressure inside chloroplasts of plants with a low mesophyll conductance did not lead to enhanced O2 sensitivity of photosynthesis because the low conductance caused a significant drop in the chloroplast CO2 Partial pressure upon switching to low O2. We found no correlation between mesophyll conductance and the ratio of internal leaf area to leaf surface area and only a weak correlation between mesophyll conductance and the proportion of leaf volume occupied by air. Mesophyll conductance was independent of CO2 and O2 partial pressure during the measurement, indicating that a true physical parameter, independent of biochemical effects, was being measured. No evidence for accumulating mechanisms was found. Some plants, notably Citrus aurantium and Simmondsia chinensis, had very low conductances that limit the rate of photosynthesis these plants can attain at atmospheric CO2 level.

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Accession: 002373306

DOI: 10.1104/pp.98.4.1437

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Rohalj, M.K.aljevic, N.S.tic, S., 1978: Possibilities of increasing labor productivity in the production of milk and baby beef at the Beograd Agricultural Enterprise. Glasnik poljoprivredne proizvodnje prerade i plasmana 27(6): 11-17

Maere, T.; Verrecht, B.; Moerenhout, S.; Judd, S.; Nopens, I., 2011: BSM-MBR: a benchmark simulation model to compare control and operational strategies for membrane bioreactors. A benchmark simulation model for membrane bioreactors (BSM-MBR) was developed to evaluate operational and control strategies in terms of effluent quality and operational costs. The configuration of the existing BSM1 for conventional wastewater tre...

Melnyk T.; Solez K.; Kjellstrand C., 1992: Adult hemolytic uremic syndrome hus consists of an extrinsic and intrinsic form with widely different prognosis. Journal of the American Society of Nephrology 3(3): 345

Mueller H., 1988: Climatic variations in the latest Elsterian and early Holsteinian. Pages 40 1988

Fales, J.H.; Bodenstein, O.F.; Waters, R.M.; Fields, E.S.; Hall, R.P.; Durbin, C.G.J., 1971: USDA studies insecticide effectiveness. Aerosols containing resmethrin alone and with tetramethrin or d-trans-allethrin [the (+)-trans-chrysanthemate of ( plus or minus )-allethrolone] were tested by the Peet-Grady method

Fischer, H., 1940: Le Centenaire du Journal de Conchyllologie et le volume du Centenaire. Journal de Conchyliologie, 894: 191-192

Pawlik, W.; Walus, K.; Konturek, S., 1977: Local circulatory effects of penta gastrin. Ingestion and digestion of food are accompanied by local and systemic hemodynamic changes, in which the autonomic nervous system and vasoactive substances released in the alimentary tract play a significant role. Of the local humoral factors respo...

S.P.erre, L.; Persinger, M.A., 1998: Geophysical variables and behavior: LXXXIV. Quantitative increases in group aggression in male epileptic rats during increases in geomagnetic activity. Over a 24-day period the magnitude of the average, 24 hr., global geomagnetic activity was significantly correlated (r and rho about .40) with the average numbers of agonistic (biting) responses between midnight and 0100 hr. in a group of four mal...

Yasuda, K.; Sugie, H.; Heath, R.R., 1992: Field evaluation of synthetic sex-attractant pheromone of the sweet-potato weevil Cylas formicarius Fabricus (Coleoptera: Brentidae). The synthetic sex pheromone (Z)-3-dodecenyl (E)-2-butenoate was attractive to males of Cylas formicarius in a sweet potato field in Okinawa, Japan, in 1988 and 1989. A rubber dispenser impregnated with 1 mg of synthetic sex pheromone remained attr...

Horbowicz, M.; Sempruch, C.; Kosson, R.; Koczkodaj, D.; Walas, D., 2016: Effect of fluazifop-p-butyl treatment on pigments and polyamines level within tissues of non-target maize plants. Fluazifop-p-butyl (FL) is one of the most popular graminicides from arylophenoxypropionate group. These herbicides act as inhibitors of acetyl-CoA carboxylase (ACCase) that catalyzes the formation of malonyl-CoA during metabolism of lipids and/or...