Claim · model-written summary
The authors suggest light reactions mainly control SIF on a different timescale from stomatal response.
- Taxon
- Populus deltoides
Populus deltoidese1 - Outcome
- SIFe0
- Qualifier
- light reactions of photosynthesise0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results suggest that SIF is mainly controlled by the light reactions of photosynthesis, which operate on different timescales than the stomatal response.”
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 Net photosynthesis dropped 94% during drought.
- 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.