Claim · model-written summary
Drought decreased maximum photosynthetic rates under saturating light and CO2.
- Treatment
- droughtt0
- Outcome
- maximum photosynthetic ratese0
- Qualifier
- light and CO2 saturating conditionse0
VitisNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum photosynthetic rates measured at light and CO2 saturating conditions (three times ambient CO2 levels)”
t0“field-grown grapevine under drought”
Title
Joã o P. Maroco; M. Lucí et al. Australian Journal of Plant Physiology 2002. doi:10.1071/pp01040
Other claims from this paper (10)
- Intervention effect Drought reduced grapevine photosynthetic rate by about 70%.
- Intervention effect Drought reduced grapevine stomatal conductance and PSII activity.
- Intervention effect Drought increased stomatal limitation to photosynthesis by about 44%.
- Intervention effect Modeled maximum Rubisco carboxylation activity fell by about 32% under drought.
- Intervention effect Modeled ribulose-1,5-bisphosphate regeneration fell by about 27% under drought.
- Intervention effect Modeled triose phosphate utilization fell by about 37% under drought.
- Method / resource Modeled biochemical drought effects agreed with in vitro activities of carbon metabolism enzymes.
- Intervention effect Drought reduced quantum yields under ambient and saturating CO2.
- Mechanism Stomatal closure strongly limited CO2 assimilation under drought.
- Method / resource Gas exchange modeling successfully predicted metabolic limits to photosynthesis.