Claim · model-written summary
Net photosynthesis dropped 94% during drought.
- Taxon
- Populus deltoides
Populus deltoidese1 - Treatment
- droughte0
- Outcome
- Net photosynthesise0
- Direction
- droppede0
- Value
- 94%e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Net photosynthesis ( A net ) and conductance dropped 94% and 95% on average over the drought, while SIF values only decreased slightly (21%).”
e1“Populus deltoides”
Title
Solar‐induced chlorophyll fluorescence and short‐term photosynthetic response to drought
Levi T. Helm; Hanyu Shi; Manuel T. Lerdau; et al. Ecological Applications 2020. doi:10.1002/eap.2101
Other claims from this paper (9)
- Intervention effect Conductance dropped 95% during drought.
- Intervention effect SIF values decreased 21% during drought.
- Intervention effect Electron transport rate fell 64% against control in the last drought week.
- Observation Electron transport continued as net photosynthesis approached zero.
- Association SIF yield correlated positively with steady-state fluorescence.
- Association SIF yield correlated negatively with non-photochemical quenching.
- Observation Normalized steady-state fluorescence and SIF yield had a more pronounced drought response.
- Method / resource The authors infer that SIF may be a less accurate photosynthesis estimator in brief mild stress.
- Mechanism The authors suggest light reactions mainly control SIF on a different timescale from stomatal response.