Paper · 2025 · Радиационная биология Радиоэкология / Radiation biology Radioecology

Influence of Separate and Combined Action of γ-Radiation and Lead Nitrate on Germination, Antioxidant Status and Cytogenetic Indicators of Spring Barley Seedlings

S. A. Geras’kin

8
claims
22
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

Exposure of seeds to a dose of γ-radiation of 20 Gy and a concentration of 2 mg/ml lead significantly modifies the oxidative status of barley plants. Lead at the concentration studied is capable of suppressing the development of seedlings, but is inferior to γ-radiation in its ability to induce cytogenetic abnormalities in the root meristem. Lead toxicity affects roots much more than shoots because roots interact directly with the lead solution. Preliminary seeds γ-irradiation modifies the oxidative status of plants, which reduces the negative effect of lead on seed germination and mitotic activity of cells. The combined action of lead and ionizing radiation does not lead to increased oxidative stress and an increase in the frequency of cytogenetic abnormalities compared to their separate action.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 8

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Radiation and lead significantly modified barley oxidative status.

Treatment
γ-radiation of 20 Gy and a concentration of 2 mg/ml leade0
Outcome
oxidative statuse0

Not reportedComparatorDirection

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Exposure of seeds to a dose of γ-radiation of 20 Gy and a concentration of 2 mg/ml lead significantly modifies the oxidative status of barley plants”

✓ located verbatim in the source · abstract, characters 0–148 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lead suppressed seedling development.

Taxon
Spring BarleyHordeum vulgaret0
Treatment
Leade0
Outcome
development of seedlingse0
Direction
suppressinge0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Lead at the concentration studied is capable of suppressing the development of seedlings”

✓ located verbatim in the source · abstract, characters 150–238 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Lead induced fewer root-meristem cytogenetic abnormalities than radiation.

Taxon
Spring BarleyHordeum vulgaret0
Treatment
Leade1
Outcome
cytogenetic abnormalities in the root meristeme0
Direction
inferiore0
Comparator
γ-radiatione0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“is inferior to γ-radiation in its ability to induce cytogenetic abnormalities in the root meristem”

✓ located verbatim in the source · abstract, characters 244–342 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Lead toxicity affected roots more than shoots.

Taxon
Spring BarleyHordeum vulgaret0
Organ / stage
rootse0
Outcome
Lead toxicitye0
Direction
much moree0
Comparator
shootse0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Lead toxicity affects roots much more than shoots”

✓ located verbatim in the source · abstract, characters 344–393 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preliminary irradiation reduced lead harm to seed germination.

Taxon
Spring BarleyHordeum vulgaret0
Treatment
Preliminary seeds γ-irradiatione0
Outcome
seed germinatione0
Direction
reducese0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Preliminary seeds γ-irradiation modifies the oxidative status of plants, which reduces the negative effect of lead on seed germination and mitotic activity of cells”

✓ located verbatim in the source · abstract, characters 450–614 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preliminary irradiation reduced lead harm to cell mitotic activity.

Taxon
Spring BarleyHordeum vulgaret0
Treatment
Preliminary seeds γ-irradiatione0
Outcome
mitotic activity of cellse0
Direction
reducese0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Preliminary seeds γ-irradiation modifies the oxidative status of plants, which reduces the negative effect of lead on seed germination and mitotic activity of cells”

✓ located verbatim in the source · abstract, characters 450–614 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Combined lead and radiation did not increase oxidative stress beyond separate exposures.

Taxon
Spring BarleyHordeum vulgaret0
Treatment
combined action of lead and ionizing radiatione0
Outcome
oxidative stresse0
Direction
does not lead to increasede0
Comparator
their separate actione0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The combined action of lead and ionizing radiation does not lead to increased oxidative stress and an increase in the frequency of cytogenetic abnormalities compared to their separate action”

✓ located verbatim in the source · abstract, characters 616–806 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Combined lead and radiation did not increase cytogenetic abnormality frequency beyond separate exposures.

Taxon
Spring BarleyHordeum vulgaret0
Treatment
combined action of lead and ionizing radiatione0
Outcome
frequency of cytogenetic abnormalitiese0
Direction
does not lead to increasede0
Comparator
their separate actione0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The combined action of lead and ionizing radiation does not lead to increased oxidative stress and an increase in the frequency of cytogenetic abnormalities compared to their separate action”

✓ located verbatim in the source · abstract, characters 616–806 · show in text ↑
e1

“Lead at the concentration studied”

✓ located verbatim in the source · abstract, characters 150–183 · show in text ↑
t0

“Spring Barley Seedlings”

✓ located verbatim in the source · title, characters 139–162 · show in text ↑

lead atom · growth · Hordeum vulgare (barley)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

See all 13 papers →

lead atom · physiology: oxidative · Hordeum vulgare (barley)Results agree

6 papers: 0 positive, 6 negative or no effect

5 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

2 papers more in this group

See all 6 papers →

radiation · physiology: oxidative · Hordeum vulgare (barley)Positive and negative results

6 papers: 2 positive, 4 negative or no effect

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

  1. positive
  2. positive
  3. negative

2 papers more in this group

See all 6 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.