Claim · model-written summary
Shoot Pb and Cu accumulation was two to four times that in roots in all three plants.
- Taxon
- amaranth, Indian mustard and sunflower
Amaranthus caudatus
Brassica juncea
Helianthus annuuse0 - Organ / stage
- shootse1
- Outcome
- accumulation of Pb and Cue1
- Direction
- highere2
- Value
- two to four foldse2
- Comparator
- the concentration in rootse2
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“into amaranth, Indian mustard and sunflower”
e1“Industrial soil amended with N fertilizer resulted in the highest accumulation of Pb and Cu (for Pb 10.1-15.5 mg kg⁻¹, for Cu 11.6-16.8 mg kg⁻¹) in the shoots”
e2“which was two to four folds higher relative to the concentration in roots”
Title
Motior M. Rahman; Sofian M. Azirun; Amru N. Boyce PLoS ONE 2013. doi:10.1371/journal.pone.0062941
Other claims from this paper (11)
- Intervention effect Nitrogen fertilizer in industrial soil gave the highest Pb accumulation in shoots (10.1-15.5 mg kg-1).
- Intervention effect Nitrogen fertilizer in industrial soil gave the highest Cu accumulation in shoots (11.6-16.8 mg kg-1).
- Intervention effect Sunflower removed significantly more Pb (50-54%) than amaranth and Indian mustard when nitrogen fertilizer was applied to industrial soil.
- Intervention effect Sunflower removed significantly more Cu (34-38%) than amaranth and Indian mustard when nitrogen fertilizer was applied to industrial soil.
- Observation The transfer factor was below 1 in all three plant species.
- Observation The shoot-to-root concentration ratio of Pb was 1.3-4.3.
- Observation The shoot-to-root concentration ratio of Cu was 1.8-3.8.
- Recommendation Sunflower is recommended as the best species for phytoextraction of Pb and Cu.
- Observation Pb and Cu removal by Indian mustard and amaranth shows potential as quick, short-duration vegetable crops.
- Recommendation Nitrogen fertilizer is suggested as an effective amendment for phytoextraction of Pb and Cu from contaminated industrial soil.
- Intervention effect Nitrogen fertilizer lowered soil pH from 6.9 to 5.5.