Abstract
Phytoremediation is a green technology for the sustainable remediation of surface soils contaminated with toxic heavy metals. When added to soils the chelating agent ethylenediamine tetraacetic acid (EDTA) increased the solubility of heavy elements for plant uptake during phytoremediation. A greenhouse experiment was carried out with two Brassica species ( Brassica juncea and Brassica carinata ) grown on artificially contaminated soil (20 and 40 mg Cd kg -1 ) with EDTA added at a rate of 1 g kg -1 soil. With increasing Cd (0, 20 and 40 mg Cd kg -1 soil) contamination the biomass of both the Brassica species decreased. However, Brassica juncea was more tolerant of high levels of Cd in the soil in comparison to B. carinata . The results indicated that EDTA made the cadmium more available to the plants and lowered the Cd content of the soil. The magnitude of the increase in tissue (stem, leaf and root) Cd concentration was higher in B. juncea than in B. carinata and after the application of chelating agent (EDTA). The Brassica juncea species of Indian mustard has better potential for the phytoremediation of soil heavily contaminated with Cd (40 mg Cd kg -1 soil).
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Claims 7
Claim · model-written summary
Increasing soil Cd decreased biomass in both Brassica species.
BrassicaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing Cd (0, 20 and 40 mg Cd kg -1 soil) contamination the biomass of both the Brassica species decreased”
Claim · model-written summary
Brassica juncea tolerated high soil Cd better than B. carinata.
- Taxon
- Brassica juncea
Brassica junceae0 - Outcome
- tolerant of high levels of Cd in the soile0
- Direction
- more tolerante0
- Comparator
- B. carinatae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassica juncea was more tolerant of high levels of Cd in the soil in comparison to B. carinata”
Claim · model-written summary
EDTA made cadmium more available to plants.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EDTA made the cadmium more available to the plants”
t0“BRASSICA SPECIES”
Claim · model-written summary
EDTA lowered soil Cd content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EDTA made the cadmium more available to the plants and lowered the Cd content of the soil”
t0“BRASSICA SPECIES”
Claim · model-written summary
The increase in stem, leaf and root Cd concentration was greater in B. juncea than B. carinata.
- Taxon
- B. junceaBrassica junceae0
- Organ / stage
- stem, leaf and roote0
- Outcome
- tissue (stem, leaf and root) Cd concentratione0
- Direction
- highere0
- Comparator
- B. carinatae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of the increase in tissue (stem, leaf and root) Cd concentration was higher in B. juncea than in B. carinata”
Claim · model-written summary
EDTA increased tissue Cd concentration.
- Taxon
- B. junceaBrassica junceae0
- Treatment
- application of chelating agent (EDTA)e0
- Outcome
- tissue (stem, leaf and root) Cd concentratione0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of the increase in tissue (stem, leaf and root) Cd concentration was higher in B. juncea than in B. carinata and after the application of chelating agent (EDTA)”
Claim · model-written summary
The authors judge B. juncea to have better phytoremediation potential at 40 mg Cd kg -1 soil.
- Taxon
- Brassica junceaBrassica junceae0
- Outcome
- better potential for the phytoremediation of soile0
- Qualifier
- 40 mg Cd kg -1 soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Brassica juncea species of Indian mustard has better potential for the phytoremediation of soil heavily contaminated with Cd (40 mg Cd kg -1 soil)”
The same questions in other papers
chelator · nutrient: content · Brassica juncea (Indian mustard)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →cadmium atom · growth · BrassicaResults agree
1 paper in the same direction as this paper
- negative
ethylenediaminetetraacetic acid · nutrient: content · Brassica juncea (Indian mustard)Results agree
25 papers in the same direction as this paper
- positive
- positive
- positive
22 papers more in this group
See all 26 papers →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.