Claim · model-written summary
Substantial damage to the photochemical apparatus occurred only at extreme dehydration, after complete stomatal closure, and seems to be irreversible.
- Taxon
- angiosperm speciese2
- Outcome
- Substantial damage to the photochemical apparatuse1
- Qualifier
- after complete stomatal closuree1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e1“Substantial damage to the photochemical apparatus occurs at extreme dehydration, after complete stomatal closure, and seems to be irreversible”
e2“10 diverse angiosperm species”
Title
Santiago Trueba; Ruihua Pan; Christine Scoffoni; et al. New Phytologist 2019. doi:10.1111/nph.15779
Other claims from this paper (5)
- Observation Losses of leaf rehydration capacity occurred beyond 50% declines of stomatal conductance, leaf hydraulic conductance and turgor loss point.
- Observation Losses of Fv/Fm were not recovered with rehydration and occurred after much stronger dehydration.
- Association Tissue dehydration thresholds were intercorrelated across species.
- Observation Thresholds for each type of functional decline were much less variable across species in relative water content than in leaf water potential.
- Observation Stomatal and leaf hydraulic systems showed early functional declines before cell integrity was lost.