Claim · model-written summary
The cation exchange capacity of intact xylem vessels in cut papyrus shoots was high, 0.6 to 1 x 10(-7) equivalents per square centimeter of vessel wall surface.
- Taxon
- papyrus
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Cyperus papyruse1 - Organ / stage
- xylem vesselse1
- Outcome
- cation exchange capacitye0
- Direction
- highe0
- Value
- 0.6 to 1 x 10(-7) equivalents per square centimeter vessel wall surfacee0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“The high value of the cation exchange capacity (0.6 to 1 x 10(-7) equivalents per square centimeter vessel wall surface)”
e1“intact xylem vessels in cut shoots of papyrus”
Title
Siebe C. Van de Geijn; Charles M. Petit PLANT PHYSIOLOGY 1979. doi:10.1104/pp.64.6.954
Other claims from this paper (4)
- Association The cation exchange capacity is independent of the cation concentration in the transpiration stream.
- Observation The cation exchange capacity is equal for Ca and Co.
- Mechanism The high cation exchange capacity leads to the hypothesis that the porous structure of the vessel wall, and not only its inner surface, acts as a cation exchanger.
- Mechanism Differences between anion and cation movement are explained by transport with the transpiration flux or by exchange reactions.