Abstract
Phytoremediation is a green remediation technology for clean-up contaminated soils. The effect of chelant addition including EDTA, DTPA, EDDS, and citric acid on phtoextraction of metals within different organic contents of soil into sunflower (Helianthus annuus), Chinese cabbage (Brassica campestris), cattail (Typha latifolia), and reed (Phragmitescommunis) was investigated in this pot experiment study. The application of 5 mmol/kg EDTA and DTPA had inhibitory effects on the growth of the plants, resulting in % reduction in biomass, respectively, compared with that in the control. However, the uptake of metal into tested plants and translocation to aerial plant parts was also demonstrated. The essential metals Cu and Zn uptake by sunflowers were significantly enhanced via citric acid addition. The other three chelants (EDTA, DTPA, and EDDS) did not improve the Cu and Zn root uptake nor above ground parts translocation compared to the control plant. The addition of 5 mmol/Kg citric acid achieved the maximum extent of phytoextraction.
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Claims 7
Claim · model-written summary
EDTA at 5 mmol/kg inhibited growth of the tested plants.
- Taxon
- plantsViridiplantaee0
- Treatment
- 5 mmol/kg EDTAe0
- Outcome
- growth of the plantse0
- Direction
- inhibitorye0
Not reportedComparator
Verbatim
e0“The application of 5 mmol/kg EDTA and DTPA had inhibitory effects on the growth of the plants”
Claim · model-written summary
DTPA at 5 mmol/kg inhibited growth of the tested plants.
- Taxon
- plantsViridiplantaee0
- Treatment
- DTPAe0
- Outcome
- growth of the plantse0
- Direction
- inhibitorye0
Not reportedComparator
Verbatim
e0“The application of 5 mmol/kg EDTA and DTPA had inhibitory effects on the growth of the plants”
Claim · model-written summary
Citric acid significantly enhanced copper and zinc uptake by sunflower.
- Taxon
- sunflowers
Helianthuse0 - Treatment
- citric acid additione0
- Outcome
- Cu and Zn uptakee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The essential metals Cu and Zn uptake by sunflowers were significantly enhanced via citric acid addition.”
Claim · model-written summary
EDTA did not improve copper and zinc root uptake or aboveground translocation relative to controls.
Verbatim
e0“The other three chelants (EDTA, DTPA, and EDDS) did not improve the Cu and Zn root uptake nor above ground parts translocation compared to the control plant.”
Claim · model-written summary
DTPA did not improve copper and zinc root uptake or aboveground translocation relative to controls.
Verbatim
e0“The other three chelants (EDTA, DTPA, and EDDS) did not improve the Cu and Zn root uptake nor above ground parts translocation compared to the control plant.”
Claim · model-written summary
EDDS did not improve copper and zinc root uptake or aboveground translocation relative to controls.
Verbatim
e0“The other three chelants (EDTA, DTPA, and EDDS) did not improve the Cu and Zn root uptake nor above ground parts translocation compared to the control plant.”
Claim · model-written summary
Citric acid at 5 mmol/Kg yielded the maximum extent of phytoextraction.
- Taxon
- plantsViridiplantaee1
- Treatment
- 5 mmol/Kg citric acide0
- Outcome
- phytoextractione0
- Direction
- maximume0
Not reportedComparator
Verbatim
e0“The addition of 5 mmol/Kg citric acid achieved the maximum extent of phytoextraction.”
e1“tested plants”
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See all 6 papers →citric acid · nutrient: content · Helianthus (sunflowers)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.