Abstract
In the present study, increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1) resulted in progressive increases in root elongation and in shoot and root dry matter (DM) of Indian mustard seedlings (Brassica juncea. L.) exposed at 0.5 mmol L(-1) of lead (Pb). The highest concentration of Pb in the shoots of Indian mustard reached 1140 mg kg(-1) dry weight (DW) in the treatment with 0.5 mmol L(-1) of Pb + 0.25 mmol L(-1) of EDTA. A significantly positive correlation was found between the concentrations of Pb and EDTA in the shoots of mustard. Roots were pretreated with an MC (methanol:trichloromethane) solution, 0.1 mol L(-1) of HCl, and 65 degrees C hot water. The plants were then exposed to 0.5 mmol L(-1) of Pb + 3 mmol L(-1) of EDTA in solution for 2 d. The pretreatments with MC, HCl, and hot water all increased the concentration of Pb in shoots by 14-, 7-, and 15-fold, respectively, compared with the shoots that had not been pretreated. Therefore, some physiological damage to roots would be useful to enhance the uptake of metal by plants and to minimize the application of doses of chelates in the practical operation of chelate-assisted phytoremediation.
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Claims 9
Claim · model-written summary
Increasing EDTA from 0 to 0.5 mmol L(-1) progressively increased root elongation of Indian mustard under lead exposure.
- Taxon
- Indian mustard
Brassica junceae0 - Treatment
- increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1)e0
- Outcome
- root elongatione0
- Direction
- progressive increasese0
- Qualifier
- exposed at 0.5 mmol L(-1) of lead (Pb)e0
- Comparator
- 0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the present study, increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1) resulted in progressive increases in root elongation and in shoot and root dry matter (DM) of Indian mustard seedlings (Brassica juncea. L.) exposed at 0.5 mmol L(-1) of lead (Pb).”
Claim · model-written summary
Increasing EDTA from 0 to 0.5 mmol L(-1) progressively increased shoot dry matter of Indian mustard under lead exposure.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1)e0
- Outcome
- shoot and root dry matter (DM)e0
- Direction
- progressive increasese0
- Qualifier
- exposed at 0.5 mmol L(-1) of lead (Pb)e0
- Comparator
- 0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the present study, increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1) resulted in progressive increases in root elongation and in shoot and root dry matter (DM) of Indian mustard seedlings (Brassica juncea. L.) exposed at 0.5 mmol L(-1) of lead (Pb).”
Claim · model-written summary
Increasing EDTA from 0 to 0.5 mmol L(-1) progressively increased root dry matter of Indian mustard under lead exposure.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1)e0
- Outcome
- shoot and root dry matter (DM)e0
- Direction
- progressive increasese0
- Qualifier
- exposed at 0.5 mmol L(-1) of lead (Pb)e0
- Comparator
- 0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the present study, increasing ethylenediaminetetraacetic acid (EDTA) concentration from 0 to 0.5 mmol L(-1) resulted in progressive increases in root elongation and in shoot and root dry matter (DM) of Indian mustard seedlings (Brassica juncea. L.) exposed at 0.5 mmol L(-1) of lead (Pb).”
Claim · model-written summary
Shoot lead concentration reached 1140 mg kg(-1) dry weight at 0.5 mmol L(-1) Pb plus 0.25 mmol L(-1) EDTA.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- 0.5 mmol L(-1) of Pb + 0.25 mmol L(-1) of EDTAe0
- Outcome
- concentration of Pb in the shootse0
- Direction
- higheste0
- Value
- 1140 mg kg(-1) dry weight (DW)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest concentration of Pb in the shoots of Indian mustard reached 1140 mg kg(-1) dry weight (DW) in the treatment with 0.5 mmol L(-1) of Pb + 0.25 mmol L(-1) of EDTA.”
Claim · model-written summary
Shoot Pb and EDTA concentrations were significantly positively correlated.
Verbatim
e0“A significantly positive correlation was found between the concentrations of Pb and EDTA in the shoots of mustard.”
Claim · model-written summary
MC root pretreatment increased mustard shoot Pb concentration 14-fold versus no pretreatment.
- Taxon
- Indian mustardBrassica junceat0
- Treatment
- MCe0
- Outcome
- concentration of Pb in shootse0
- Direction
- increasede0
- Value
- 14-e0
- Comparator
- shoots that had not been pretreatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pretreatments with MC, HCl, and hot water all increased the concentration of Pb in shoots by 14-, 7-, and 15-fold, respectively, compared with the shoots that had not been pretreated.”
t0“Indian Mustard Plants”
Claim · model-written summary
HCl root pretreatment increased mustard shoot Pb concentration 7-fold versus no pretreatment.
- Taxon
- Indian mustardBrassica junceat0
- Treatment
- HCle0
- Outcome
- concentration of Pb in shootse0
- Direction
- increasede0
- Value
- 7-e0
- Comparator
- shoots that had not been pretreatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pretreatments with MC, HCl, and hot water all increased the concentration of Pb in shoots by 14-, 7-, and 15-fold, respectively, compared with the shoots that had not been pretreated.”
t0“Indian Mustard Plants”
Claim · model-written summary
hot water root pretreatment increased mustard shoot Pb concentration 15-foldfold versus no pretreatment.
- Taxon
- Indian mustardBrassica junceat0
- Treatment
- hot watere0
- Outcome
- concentration of Pb in shootse0
- Direction
- increasede0
- Value
- 15-folde0
- Comparator
- shoots that had not been pretreatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pretreatments with MC, HCl, and hot water all increased the concentration of Pb in shoots by 14-, 7-, and 15-fold, respectively, compared with the shoots that had not been pretreated.”
t0“Indian Mustard Plants”
Claim · model-written summary
The authors recommend controlled root damage to enhance plant metal uptake and reduce chelate dose in phytoremediation.
- Taxon
- Indian Mustard PlantsBrassica junceat0
- Outcome
- physiological damage to roots would be useful to enhance the uptake of metal by plants and to minimize the application of doses of chelatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore, some physiological damage to roots would be useful to enhance the uptake of metal by plants and to minimize the application of doses of chelates in the practical operation of chelate-assisted phytoremediation.”
t0“Indian Mustard Plants”
The same questions in other papers
ethylenediaminetetraacetic acid · growth · Brassica juncea (Indian mustard)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
5 papers more in this group
See all 9 papers →heat · molecular: metabolites · Brassica juncea (Indian mustard)Positive and negative results
1 in the opposite direction
- negative
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.