Claim · model-written summary
In water supplied leaf pieces, daily cycles persisted to RH 0.850.
- Taxon
- Agapanthus praecox Willd.
Agapanthus praecoxe1 - Outcome
- daily cycle persistede0
- Qualifier
- RH 0.850e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In leaf pieces supplied with water via vascular strands (rate of transpiration), the daily cycle persisted down to RH 0.850, where maximal RE ≈ 2.”
e1“Agapanthus praecox Willd.”
Title
Water loss from leaf mesophyll stripped of the epidermis
Martin Canny Functional Plant Biology 2012. doi:10.1071/fp11265
Other claims from this paper (8)
- Method / resource Relative evaporation below one inadequately marks the onset of mesophyll regulation.
- Observation At RH 0.993-0.967, relative evaporation cycled daily from 0.6 to about 3.
- Observation At RH below 0.950, daily cycles were suppressed.
- Observation After initial RE near 1.2, RE declined toward zero.
- Observation At RH 0.850, maximal RE was about 2.
- Observation Field leaf transpiration from one surface fell in the same range.
- Recommendation Authors propose maximum RE for each deficit as the threshold for mesophyll regulation.
- Mechanism Authors suggest cell wall water status regulates RE decline below one at low RH.