Claim · model-written summary
At two days, 75% of TNT mass was in onion roots.
Allium cepaNot reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the total TNT mass (5 microM concentration), 75% was in the roots, 4.4% in the leaves, and 21% in the external solution at 2 days.”
t0“Onion Plant”
Title
Uptake and Phytotoxicity of TNT in Onion Plant
Jaisoo Kim; Malcolm C. Drew; M. Yavuz Corapcioglu Journal of Environmental Science and Health Part A 2004. doi:10.1081/ese-120027743
Other claims from this paper (13)
- Observation At two days, 4.4% of TNT mass was in onion leaves.
- Observation At two days, 21% of TNT mass remained in external solution.
- Association The fraction of TNT in roots decreased as external concentration increased.
- Association The fraction of TNT in leaves was comparable across concentrations.
- Observation Root concentration factor exceeded 85 in constant hydroponics at 5 microM.
- Observation Root concentration factor was 150 in nonconstant hydroponics at 5 microM.
- Association Maximum root concentration factor was greater at lower solution concentration.
- Observation Measured TSCF values of 0.31-0.56 were similar to predicted values of 0.43-0.78.
- Association TSCF increased with higher external TNT concentration.
- Intervention effect 500 microM TNT was toxic to onion plants.
- Intervention effect 50 microM TNT was nontoxic for growth but limited transpiration.
- Intervention effect 50 microM TNT limited onion transpiration rate.
- Observation 5 microM TNT was nontoxic as a control.