Claim · model-written summary
Elevated O3 increased stomatal conductance and O3 uptake in birch.
- Taxon
- Betula pendula
Betula pendulat0 - Treatment
- elevated O3e0
- Outcome
- stomatal conductance and O3 uptakee0
- Direction
- highere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under elevated O3, stomatal conductance and O3 uptake were higher.”
t0“Components of apoplastic ascorbate use in Betula pendula leaves exposed to CO2 and O3 enrichment”
Title
Components of apoplastic ascorbate use in Betula pendula leaves exposed to CO2 and O3 enrichment
E. Padu; H. Kollist; I. Tulva; et al. New Phytologist 2004. doi:10.1111/j.1469-8137.2004.01220.x
Other claims from this paper (7)
- Association Higher apoplastic ascorbate concentrations levelled off ozone fluxes to the plasmalemma.
- Intervention effect CO2 enrichment had a minor effect on ascorbate concentrations under elevated ozone.
- Observation Under ambient ozone, ascorbate use ranked from peroxidases through ozone scavenging and oxidases to coniferyl alcohol re-reduction.
- Observation Under elevated ozone, ascorbate use in ozone scavenging exceeded use by oxidases.
- Intervention effect Ozone did not depress ascorbate redox state.
- Observation No leaf injury was observed under ozone exposure.
- Mechanism The birch cell wall, plasmalemma and cytosol system maintained apoplastic ascorbate redox status without restricting ozone uptake through stomatal closure.