The response of mesophyll conductance to ozone-induced oxidative stress is genotype-dependent in poplar
Résumé
Abbreviations: A net , net assimilation rate; Asc, ascorbate; C c , CO 2 partial pressure in the chloroplast; B L , contribution of biochemical limitation to the A net decrease; C i , intercellular CO 2 partial pressure; C i-C c , CO 2 drawdown from the intercellular airspace to chloroplasts; g s , stomatal conductance to water vapour; g sc , stomatal conductance to CO 2 ; J 1000 , electron transport rate at 1000 μmol m −2 s −1 PPFD; J max , maximum electron transport rate; LMA, leaf dry mass per area; l b , l m , l s , photosynthetic limitation by biochemistry, the mesophyll, stomatal conductance;MC L , contribution of mesophyll limitation to the A net decrease; MDA, malondialdehyde; S L , contribution of stomatal conductance limitation to the A net decrease; V cmax , maximum carboxylation rate of the Rubisco enzyme.