Claim · model-written summary
Considerable amounts of Cd accumulated in sunflower roots and older leaves, with a high bioconcentration factor from soil to plant.
- Taxon
- sunflower
Helianthus annuuse0 - Organ / stage
- roots and older leavese1
- Outcome
- considerable amounts of Cd accumulatede1
- Qualifier
- high bioconcentration factor from soil to plante1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sunflower plants grown in soil contaminated with”
e1“considerable amounts of Cd accumulated in roots and older leaves, with a high bioconcentration factor from soil to plant”
Title
Anna Rita Rivelli; Susanna De Maria; Markus Puschenreiter; et al. International Journal of Phytoremediation 2011. doi:10.1080/15226514.2011.620649
Other claims from this paper (9)
- Intervention effect The contaminants applied did not produce large effects on sunflower growth.
- Intervention effect In the Cd-Zn-Cu treatment, leaf area and total dry matter of sunflower were reduced by 15%.
- Intervention effect Contamination with Cd alone did not affect growth or physiological parameters of sunflower.
- Intervention effect Adding Zn and then Cu to Cd in soil had significant toxic effects on sunflower chlorophyll content and water relations.
- Mechanism The toxic effects on chlorophyll content and water relations are attributed to greater accumulation of trace elements in tissues, with imbalances in nutrient uptake.
- Association The interaction between shoot element concentrations (Cd, Zn, Cu, Fe, Mg, K, Ca) and treatments was highly significant.
- Observation Heavy metal concentrations in sunflower roots always exceeded those in stem and leaves.
- Observation Translocation of heavy metals from roots to shoots was lower.
- Mechanism The authors suggest sunflower compartmentalises potentially toxic elements in physiologically less active parts to preserve younger tissues.