Paper · 2006

Effect of Pb and Bi concentration in nutrient solution medium on growth and Pb and Bi concentration of shoots and roots of Brassica Juncea.

Koichiro Watanabe; Kentaro Kimura; Yoshiro Ishihara

7
claims
14
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

Experiments were carried out to investigate the effect of Pb and Bi chelated by EDTA in nutrient solution medium on growth and Pb or Bi concentration of shoots and roots of Brassica Juncea. The shoot and root dry weight of B. Juncea under the condition of medium to which 100 μmol l-1 of Pb was given was almost equal to control. The Pb concentration of shoot of B. Juncea in 500μmol l-1 of Pb was 3.8 times higher than that in 100μmol l-1. B. Juncea under the condition of medium to which 100 μmol l-1 of Bi was given was decreased to 52-66 % of control. The Bi concentration of shoot of B. Juncea in 100μmol l-1 of Bi was almost equal to 50μmol l-1. It was considered that the decrease of growth in 500μmol l-1 of Pb was due to accumulate Pb in the shoot and root, but, that in 100μmol l-1 of Bi was due to accumulate Bi in the root. In this study, it was suggested that the growth of B. Juncea was inhibited by Pb and Bi in nutrient solution.

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Claims 7

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 100 μmol l-1 Pb, shoot and root dry weights were nearly equal to control.

Taxon
Brassica JunceaBrassica junceat0
Organ / stage
shoot and roote0
Treatment
100 μmol l-1 of Pbe0
Outcome
shoot and root dry weighte0
Direction
almost equale0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The shoot and root dry weight of B. Juncea under the condition of medium to which 100 μmol l-1 of Pb was given was almost equal to control.”

✓ located verbatim in the source · abstract, characters 190–329 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Shoot Pb concentration at 500μmol l-1 was 3.8 times that at 100μmol l-1.

Taxon
Brassica JunceaBrassica junceat0
Treatment
500μmol l-1 of Pbe0
Outcome
Pb concentration of shoote0
Direction
highere0
Value
3.8 timese0
Comparator
100μmol l-1e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The Pb concentration of shoot of B. Juncea in 500μmol l-1 of Pb was 3.8 times higher than that in 100μmol l-1.”

✓ located verbatim in the source · abstract, characters 330–440 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bi at 100 μmol l-1 decreased the plant response to 52-66% of control.

Taxon
Brassica JunceaBrassica junceat0
Treatment
100 μmol l-1 of Bie0
Outcome
B. Junceae0
Direction
decreasede0
Value
52-66 %e0
Comparator
controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“B. Juncea under the condition of medium to which 100 μmol l-1 of Bi was given was decreased to 52-66 % of control.”

✓ located verbatim in the source · abstract, characters 441–555 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Shoot Bi concentration was almost equal at 100 and 50 μmol l-1 Bi.

Taxon
Brassica JunceaBrassica junceat0
Treatment
100μmol l-1 of Bie0
Outcome
Bi concentration of shoote0
Direction
almost equale0
Comparator
50μmol l-1e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The Bi concentration of shoot of B. Juncea in 100μmol l-1 of Bi was almost equal to 50μmol l-1.”

✓ located verbatim in the source · abstract, characters 556–651 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Authors attributed growth loss at 500μmol l-1 Pb to Pb accumulation in shoots and roots.

Taxon
Brassica JunceaBrassica junceat0
Treatment
500μmol l-1 of Pbe0
Outcome
decrease of growthe0
Qualifier
accumulate Pb in the shoot and roote0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the decrease of growth in 500μmol l-1 of Pb was due to accumulate Pb in the shoot and root”

✓ located verbatim in the source · abstract, characters 675–765 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Authors attributed growth loss at 100μmol l-1 Bi to root Bi accumulation.

Taxon
Brassica JunceaBrassica junceat0
Treatment
100μmol l-1 of Bie0
Outcome
thate0
Qualifier
accumulate Bi in the roote0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“that in 100μmol l-1 of Bi was due to accumulate Bi in the root.”

✓ located verbatim in the source · abstract, characters 772–835 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pb and Bi inhibited growth in nutrient solution.

Taxon
Brassica JunceaBrassica junceat0
Treatment
Pb and Bie0
Outcome
growthe0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica juncea
Brassica juncea · TaxonDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the growth of B. Juncea was inhibited by Pb and Bi in nutrient solution.”

✓ located verbatim in the source · abstract, characters 873–945 · show in text ↑
t0

“Brassica Juncea”

✓ located verbatim in the source · title, characters 123–138 · show in text ↑

lead atom · growth · Brassica juncea (Indian mustard)Results differ

13 papers: 2 positive, 11 negative or no effect

10 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative

9 papers more in this group

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lead atom · nutrient: content · Brassica juncea (Indian mustard)Positive and negative results

5 papers: 2 positive, 3 negative or no effect

2 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative

1 paper more in this group

See all 5 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.