Claim · model-written summary
The energy of activation of rehydration declines greatly after water loss in excess of 600 milligrams per gram fresh weight.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- water loss in excess of 600 milligrams per gram fresh weighte5
- Outcome
- energy of activatione4
- Direction
- declinese5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Removal of the lower epidermis from a tobacco leaf allows a faster and wider range of water fluxes, without damaging the mesophyll”
e4“The "energy of activation" of rehydration amounts to about 9 kilocalories per mole at intermediate dehydration”
e5“but it greatly declines following water loss in excess of 600 milligrams per gram fresh weight”
Title
Dehydration, Water Fluxes, and Permeability of Tobacco Leaf Tissue
Y. Graziani; A. Livne PLANT PHYSIOLOGY 1971. doi:10.1104/pp.48.5.575
Other claims from this paper (9)
- Intervention effect Removal of the lower epidermis from a tobacco leaf gives a faster and wider range of water fluxes without damaging the mesophyll.
- Observation The rehydration rate of tobacco leaf discs is essentially linear.
- Association The rehydration rate of tobacco leaf tissue decreases with leaf age.
- Association The rehydration rate of tobacco leaf tissue is correlated with the rate of dehydration.
- Association The rehydration rate of tobacco leaf tissue is independent of tissue water potential.
- Association The hydraulic permeability coefficient of water influx in tobacco leaf tissue is directly related to tissue water potential.
- Observation The energy of activation of rehydration in tobacco leaf tissue is about 9 kilocalories per mole at intermediate dehydration.
- Association Excessive dehydration of tobacco leaf tissue is associated with a major increase in permeability.
- Association Excessive dehydration of tobacco leaf tissue is associated with a parallel decrease in photosynthetic activity.