Paper · 2022 · Antioxidants

Radio-Protective Effects of Stigmasterol on Wheat (Triticum aestivum L.) Plants

Hebat-Allah A. Hussein; Shifaa O. Alshammari; Fatma M. Elkady; et al.

14
claims
30
verbatim quotes
8
citations
2
research areas
✓
Open access · cc-by

Abstract

Ionizing radiation is abiotic stress limiting the growth and productivity of crop plants. Stigmasterol has positive effects on the plant growth of many crops. The role of stigmasterol in alleviating the effects of ionizing radiation on plant metabolism and development is still unclear. Therefore, the study aimed to investigate the effects of pretreatments with γ-radiation (0, 25, and 50 Gy), foliar application of stigmasterol (0, 100, and 200 ppm), and their interaction on the growth, and biochemical constituents of wheat (Triticum aestivum L., var. Sids 12) plants. Gamma radiation at 25 Gy showed no significant difference in plant height, root length, no. of leaves, shoot fresh weight, root fresh weight, Chl a, ABA, soluble phenols, and MDA compared to the control values. Gamma rays at 50 Gy inhibited shoot and root lengths, flag leaf area, shoot fresh and dry weights, photosynthetic pigments, total soluble sugars, proline, and peroxidase activity. However, it stimulated total phenols, catalase activity, and lipid peroxidation. On the other hand, stigmasterol at 100 ppm showed no significant effects on some of the physiological attributes compared to control plants. Stigmasterol at 200 ppm improved plant growth parameters, photosynthetic pigments, proline, phenols, antioxidant enzyme, gibberellic acid, and indole acetic acid. Correspondingly, it inhibited total soluble sugars, abscisic acid, and lipid peroxidation. Moreover, the application of stigmasterol caused the appearance of new polypeptides and the reappearance of those missed by gamma radiation. Overall, stigmasterol could alleviate the adverse effects of gamma radiation on wheat plants.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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 14

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Gamma radiation at 25 Gy did not change plant height, root length or number of leaves

Material
Sids 12e1
Treatment
Gamma radiation at 25 Gye2
Outcome
plant height, root length, no. of leavese2
Direction
no significant differencee2
Comparator
the control valuese2

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e2

“Gamma radiation at 25 Gy showed no significant difference in plant height, root length, no. of leaves, shoot fresh weight, root fresh weight, Chl a, ABA, soluble phenols, and MDA compared to the control values”

✓ located verbatim in the source · abstract, characters 573–782 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Gamma radiation at 25 Gy did not change shoot fresh weight, root fresh weight or Chl a

Material
Sids 12e1
Treatment
Gamma radiation at 25 Gye2
Outcome
shoot fresh weight, root fresh weight, Chl ae2
Direction
no significant differencee2
Comparator
the control valuese2

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e2

“Gamma radiation at 25 Gy showed no significant difference in plant height, root length, no. of leaves, shoot fresh weight, root fresh weight, Chl a, ABA, soluble phenols, and MDA compared to the control values”

✓ located verbatim in the source · abstract, characters 573–782 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Gamma radiation at 25 Gy did not change ABA, soluble phenols or MDA

Material
Sids 12e1
Treatment
Gamma radiation at 25 Gye2
Outcome
ABA, soluble phenols, and MDAe2
Direction
no significant differencee2
Comparator
the control valuese2

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e2

“Gamma radiation at 25 Gy showed no significant difference in plant height, root length, no. of leaves, shoot fresh weight, root fresh weight, Chl a, ABA, soluble phenols, and MDA compared to the control values”

✓ located verbatim in the source · abstract, characters 573–782 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gamma rays at 50 Gy inhibited shoot and root lengths and flag leaf area

Material
Sids 12e1
Treatment
Gamma rays at 50 Gye3
Outcome
shoot and root lengths, flag leaf areae3
Direction
inhibitede3

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e3

“Gamma rays at 50 Gy inhibited shoot and root lengths, flag leaf area, shoot fresh and dry weights, photosynthetic pigments, total soluble sugars, proline, and peroxidase activity”

✓ located verbatim in the source · abstract, characters 784–962 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gamma rays at 50 Gy inhibited shoot fresh and dry weights and photosynthetic pigments

Material
Sids 12e1
Treatment
Gamma rays at 50 Gye3
Outcome
shoot fresh and dry weights, photosynthetic pigmentse3
Direction
inhibitede3

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e3

“Gamma rays at 50 Gy inhibited shoot and root lengths, flag leaf area, shoot fresh and dry weights, photosynthetic pigments, total soluble sugars, proline, and peroxidase activity”

✓ located verbatim in the source · abstract, characters 784–962 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gamma rays at 50 Gy inhibited total soluble sugars, proline and peroxidase activity

Material
Sids 12e1
Treatment
Gamma rays at 50 Gye3
Outcome
total soluble sugars, proline, and peroxidase activitye3
Direction
inhibitede3

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e3

“Gamma rays at 50 Gy inhibited shoot and root lengths, flag leaf area, shoot fresh and dry weights, photosynthetic pigments, total soluble sugars, proline, and peroxidase activity”

✓ located verbatim in the source · abstract, characters 784–962 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Gamma rays at 50 Gy stimulated total phenols, catalase activity and lipid peroxidation

Material
Sids 12e1
Treatment
Gamma rays at 50 Gye3
Outcome
total phenols, catalase activity, and lipid peroxidatione4
Direction
stimulatede4

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e3

“Gamma rays at 50 Gy inhibited shoot and root lengths, flag leaf area, shoot fresh and dry weights, photosynthetic pigments, total soluble sugars, proline, and peroxidase activity”

✓ located verbatim in the source · abstract, characters 784–962 · show in text ↑
e4

“However, it stimulated total phenols, catalase activity, and lipid peroxidation”

✓ located verbatim in the source · abstract, characters 964–1043 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Stigmasterol at 100 ppm showed no significant effect on some physiological attributes

Material
Sids 12e1
Treatment
stigmasterol at 100 ppme5
Outcome
some of the physiological attributese5
Direction
no significant effectse5
Comparator
control plantse5

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e5

“On the other hand, stigmasterol at 100 ppm showed no significant effects on some of the physiological attributes compared to control plants”

✓ located verbatim in the source · abstract, characters 1045–1184 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Stigmasterol at 200 ppm improved plant growth parameters, photosynthetic pigments and proline

Material
Sids 12e1
Treatment
Stigmasterol at 200 ppme6
Outcome
plant growth parameters, photosynthetic pigments, prolinee6
Direction
improvede6

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e6

“Stigmasterol at 200 ppm improved plant growth parameters, photosynthetic pigments, proline, phenols, antioxidant enzyme, gibberellic acid, and indole acetic acid”

✓ located verbatim in the source · abstract, characters 1186–1347 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Stigmasterol at 200 ppm improved phenols, antioxidant enzyme and gibberellic acid

Material
Sids 12e1
Treatment
Stigmasterol at 200 ppme6
Outcome
phenols, antioxidant enzyme, gibberellic acide6
Direction
improvede6

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e6

“Stigmasterol at 200 ppm improved plant growth parameters, photosynthetic pigments, proline, phenols, antioxidant enzyme, gibberellic acid, and indole acetic acid”

✓ located verbatim in the source · abstract, characters 1186–1347 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Stigmasterol at 200 ppm improved indole acetic acid

Material
Sids 12e1
Treatment
Stigmasterol at 200 ppme6
Outcome
indole acetic acide6
Direction
improvede6

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e6

“Stigmasterol at 200 ppm improved plant growth parameters, photosynthetic pigments, proline, phenols, antioxidant enzyme, gibberellic acid, and indole acetic acid”

✓ located verbatim in the source · abstract, characters 1186–1347 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Stigmasterol at 200 ppm inhibited total soluble sugars, abscisic acid and lipid peroxidation

Material
Sids 12e1
Treatment
Stigmasterol at 200 ppme6
Outcome
total soluble sugars, abscisic acid, and lipid peroxidatione7
Direction
inhibitede7

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e6

“Stigmasterol at 200 ppm improved plant growth parameters, photosynthetic pigments, proline, phenols, antioxidant enzyme, gibberellic acid, and indole acetic acid”

✓ located verbatim in the source · abstract, characters 1186–1347 · show in text ↑
e7

“Correspondingly, it inhibited total soluble sugars, abscisic acid, and lipid peroxidation”

✓ located verbatim in the source · abstract, characters 1349–1438 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Stigmasterol application caused appearance of new polypeptides and reappearance of those missed by gamma radiation

Material
Sids 12e1
Treatment
the application of stigmasterole2
Gene
new polypeptidese2
Outcome
the appearance of new polypeptidese2
Comparator
those missed by gamma radiatione2

Not reportedDirection

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e2

“Moreover, the application of stigmasterol caused the appearance of new polypeptides and the reappearance of those missed by gamma radiation”

✓ located verbatim in the source · abstract, characters 1440–1579 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Stigmasterol could alleviate the adverse effects of gamma radiation on wheat

Material
Sids 12e1
Treatment
stigmasterole3
Outcome
adverse effects of gamma radiatione3
Direction
alleviatee3

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

e1

“wheat (Triticum aestivum L., var. Sids 12) plants”

✓ located verbatim in the source · abstract, characters 522–571 · show in text ↑
e3

“Overall, stigmasterol could alleviate the adverse effects of gamma radiation on wheat plants”

✓ located verbatim in the source · abstract, characters 1581–1673 · show in text ↑

radiation · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results

13 papers: 6 positive, 7 negative or no effect

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radiation · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results

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

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radiation · growth · Triticum aestivum (wheat)Positive and negative results

89 papers: 35 positive, 54 negative or no effect

53 papers in the same direction as this paper · 35 in the opposite direction

  1. negative
  2. negative
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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.