Claim · model-written summary
At higher acidity, soybean plants reduced more nitrate, generating more internal hydroxide ions.
- Taxon
- soybean
Glycine maxe1 - Treatment
- higher aciditiese0
- Outcome
- reduction of NO3 -e0
- Direction
- greatere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“greater reduction of NO3 -, and thus greater generation of internal OH- ions, occurred in plants at higher acidities”
e1“soybean (Glycine max [L.] Merrill) plants”
Title
Thomas W. Rufty,; C. David Raper,; William A. Jackson Botanical Gazette 1982. doi:10.1086/337264
Other claims from this paper (11)
- Intervention effect Increasing acidity reduced soybean root growth rates for about 20 days.
- Intervention effect After about 20 days, root growth rates recovered and exceeded those at low acidity.
- Observation Root mass was similar across acidity treatments after 30 days.
- Intervention effect Increasing acidity enhanced nitrate uptake rate per unit root mass within the first day, with rates remaining constant thereafter.
- Intervention effect Higher acidity restricted total nitrate uptake until about day 20.
- Intervention effect Higher acidity restricted shoot growth rates until about day 20.
- Intervention effect After day 20, total nitrate uptake recovered and exceeded that at low acidity.
- Intervention effect After day 20, shoot growth rates recovered and exceeded those at low acidity.
- Intervention effect As acidity increased, anion uptake increased relative to cation uptake.
- Intervention effect At higher acidity, plant tissues contained less organic anion.
- Mechanism Root-zone acidity influenced the partitioning of internally generated hydroxide between organic-anion synthesis and efflux.