Paper · 2018 · Journal of Pharmacognosy and Phytochemistry

Lead induced root and shoot growth reduction in wheat (Triticum aestivum L.) is due to increase in membrane lipid peroxidation

Satish Kumar; Pallavi Sharma; Amarendra Narayan Misra; et al.

7
claims
13
verbatim quotes
4
citations
1
research areas
✓
Open access

Abstract

Lead (Pb) is one of the most phytotoxic metals in the agricultural soils and its concentration is continuously increasing mainly through anthropogenic activities. Present study was designed to investigate the phototoxic effects of lead (Pb) on different physiological parameter in Triticum aestivum L. Wheat seeds were germinated in petri plate at different concentration (0, 50, 100, 150, 200, 250 and 500μM) of Pb (NO3)2. The increasing lead concentration gradually and significantly decreased germination (%), fresh and dry weight, shoot and root length, decrease in chlorophyll and carotenoid content with respect to control. The hydrogen peroxide content and lipid peroxidation increased both in shoot and root, but those in root increased drastically over the control values. The peroxidative process in roots in Pb toxicity might be one of the major factors for inhibition of growth and pigment content in wheat seedlings.

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Claims 7

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing lead significantly reduced germination.

Taxon
Triticum aestivum L.Triticum aestivumt0
Treatment
increasing lead concentratione0
Outcome
germination (%)e0
Direction
decreasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increasing lead concentration gradually and significantly decreased germination (%)”

✓ located verbatim in the source · abstract, characters 428–511 · show in text ↑
t0

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing lead significantly reduced fresh and dry weight.

Taxon
Triticum aestivum L.Triticum aestivumt0
Treatment
increasing lead concentratione0
Outcome
fresh and dry weighte0
Direction
decreasede0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increasing lead concentration gradually and significantly decreased germination (%), fresh and dry weight, shoot and root length, decrease in chlorophyll and carotenoid content with respect to control”

✓ located verbatim in the source · abstract, characters 428–628 · show in text ↑
t0

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing lead significantly reduced shoot and root length.

Taxon
Triticum aestivum L.Triticum aestivumt0
Treatment
increasing lead concentratione0
Outcome
shoot and root lengthe0
Direction
decreasede0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“increasing lead concentration gradually and significantly decreased germination (%), fresh and dry weight, shoot and root length, decrease in chlorophyll and carotenoid content with respect to control”

✓ located verbatim in the source · abstract, characters 428–628 · show in text ↑
t0

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 48–76 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing lead reduced chlorophyll and carotenoid content.

Taxon
Triticum aestivum L.Triticum aestivumt0
Treatment
Leadt0
Outcome
chlorophyll and carotenoid contente0
Direction
decreasee0
Comparator
controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“decrease in chlorophyll and carotenoid content with respect to control”

✓ located verbatim in the source · abstract, characters 558–628 · show in text ↑
t0

“Lead induced root and shoot growth reduction in wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 0–76 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Hydrogen peroxide increased in shoots and roots, especially roots.

Taxon
Triticum aestivum L.Triticum aestivumt0
Organ / stage
shoot and roote0
Treatment
Leadt0
Outcome
hydrogen peroxide contente0
Direction
increasede0
Comparator
control valuese0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The hydrogen peroxide content and lipid peroxidation increased both in shoot and root, but those in root increased drastically over the control values”

✓ located verbatim in the source · abstract, characters 630–780 · show in text ↑
t0

“Lead induced root and shoot growth reduction in wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 0–76 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lipid peroxidation increased in shoots and roots, especially roots.

Taxon
Triticum aestivum L.Triticum aestivumt0
Organ / stage
shoot and roote0
Treatment
Leadt0
Outcome
lipid peroxidatione0
Direction
increasede0
Comparator
control valuese0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The hydrogen peroxide content and lipid peroxidation increased both in shoot and root, but those in root increased drastically over the control values”

✓ located verbatim in the source · abstract, characters 630–780 · show in text ↑
t0

“Lead induced root and shoot growth reduction in wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 0–76 · show in text ↑
Mechanismhypothesisoriginal resultnegativemeasured

Claim · model-written summary

Authors suggest root peroxidation contributes to reduced growth and pigments under lead.

Outcome
inhibition of growth and pigment contente0
Qualifier
peroxidative process in roots in Pb toxicitye0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The peroxidative process in roots in Pb toxicity might be one of the major factors for inhibition of growth and pigment content in wheat seedlings”

✓ located verbatim in the source · abstract, characters 782–928 · show in text ↑

lead atom · growth · Triticum aestivum (wheat)Results differ

30 papers: 4 positive, 26 negative or no effect

25 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

26 papers more in this group

See all 30 papers →

lead atom · physiology: pigments · Triticum aestivum (wheat)Positive and negative results

7 papers: 1 positive, 6 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. negative

3 papers more in this group

See all 7 papers →

lead atom · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results

15 papers: 1 positive, 14 negative or no effect

13 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. negative

11 papers more in this group

See all 15 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.