Claim · model-written summary
Osmotic stress after Rb accumulation made root segments lose only slightly more Rb than controls in the first 30 min.
- Taxon
- corn
Zea mays subsp. mayse1 - Organ / stage
- root segmentse1
- Treatment
- osmotic stress by immersion in solutions of mannitole1
- Outcome
- Rbe4
- Direction
- lose only slightly moree4
- Comparator
- controlse4
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Excised root segments of corn were subjected to osmotic stress by immersion in solutions of mannitol before, during, or after a period of Rb absorption”
e4“Stress imposed following a period of Rb accumulation caused root segments to lose only slightly more Rb than controls during the first 30 min”
Title
INFLUENCE OF MANNITOL ON ABSORPTION AND RETENTION OF RUBIDIUM BY EXCISED CORN ROOTS
Richard C. Smith; Beverly H. St. John; Rolando Parrondo American Journal of Botany 1973. doi:10.1002/j.1537-2197.1973.tb05979.x
Other claims from this paper (4)
- Intervention effect Osmotic stress before or during the absorption period reduced Rb absorption to 20% or less of controls.
- Intervention effect Osmotic stress during the absorption period had no detectable influence on the constancy and selectivity of Rb uptake.
- Intervention effect Segments stressed after the Rb absorption period retained 70–90% as much Rb as controls, even after two hours.
- Mechanism Stress-induced reduction of ion absorption cannot be adequately explained by increased efflux of ions alone.