Claim · model-written summary
Under drought, elevated CO2 may increase water-use efficiency.
- Taxon
- plantsViridiplantaet0
- Outcome
- water-use efficiencye0
- Direction
- increasee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Verbatim
e0“increase water-use efficiency”
t0“water-stressed plants”
Title
Water Stress, C02 and Climate Change
M. M. Chaves; J. S. Pereira; Tapada da Ajuda 1992
Other claims from this paper (9)
- Mechanism Stomata are described as the main limitation to carbon uptake during water deficit in most species.
- Observation Additional stresses can reduce photosynthetic capacity.
- Mechanism Under drought, higher atmospheric CO2 may reduce stomatal limitation of carbon assimilation.
- Observation Under drought, elevated CO2 may inhibit photorespiration.
- Observation Under drought, elevated CO2 may stimulate carbon partitioning to soluble sugars.
- Observation Elevated CO2 may protect plants under high irradiance from photoinhibition.
- Observation Many species appear to acclimate photosynthesis negatively over longer exposure to elevated CO2.
- Observation Water deficits decrease foliage area biomass and productivity.
- Observation Doubling atmospheric CO2 may improve carbon assimilation despite acclimation and partially offset water stress.