Paper · 2016 · Indian Journal of Agricultural Biochemistry

Role of Sulphydral Compounds on Antioxidant Defense Mechanism under High Temperature Stress in Wheat

Meenakshi Goyal; Bavita Asthir

8
claims
16
verbatim quotes
4
citations
1
research areas
—
Not open access

Abstract

The role of sulphydral compound viz: thiourea (TU) on the activities of antioxidant enzymes along with membrane thermostability parameters and metabolites contents was studied in high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings. The seedlings were raised from seeds previously soaked with TU at different concentration (6 mM and 10 mM). TU pre-treatments modulated the response in shoots under HT by increasing antioxidant enzymes activities except superoxide dismutase and catalase, resulting in decreased lipid peroxidation products. In roots, HT upregulated the activities of ascorbate peroxidase and glutathione peroxidase but downregulated the activities of other enzymes resulting in increased TBARS levels. Proline content increased with TU pre-treatment in both shoots and roots under HT stress. Membrane thermostability was also enhanced with TU pre-treatment in both organs. However, free amino acids decreased with TU pre-treatment.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

TU pre-treatment increased antioxidant enzyme activities in shoots under HT, except superoxide dismutase and catalase.

Material
PBW 343e0
Organ / stage
shootse1
Treatment
TU pre-treatmentse1
Outcome
antioxidant enzymes activitiese1
Direction
increasinge1
Qualifier
except superoxide dismutase and catalasee1

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e1

“TU pre-treatments modulated the response in shoots under HT by increasing antioxidant enzymes activities except superoxide dismutase and catalase”

✓ located verbatim in the source · abstract, characters 370–515 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

TU pre-treatment decreased lipid peroxidation products in shoots under HT.

Organ / stage
shootse3
Treatment
TU pre-treatmentse3
Outcome
lipid peroxidation productse3
Direction
decreasede3

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e3

“TU pre-treatments modulated the response in shoots under HT by increasing antioxidant enzymes activities except superoxide dismutase and catalase, resulting in decreased lipid peroxidation products”

✓ located verbatim in the source · abstract, characters 370–567 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Under HT, activities of ascorbate peroxidase and glutathione peroxidase were upregulated in roots.

Organ / stage
rootse4
Treatment
HTe4
Outcome
activities of ascorbate peroxidase and glutathione peroxidasee4
Direction
upregulatede4

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e4

“In roots, HT upregulated the activities of ascorbate peroxidase and glutathione peroxidase but downregulated the activities of other enzymes resulting in increased TBARS levels”

✓ located verbatim in the source · abstract, characters 569–745 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Under HT, activities of other enzymes were downregulated in roots.

Organ / stage
rootse4
Treatment
HTe4
Outcome
activities of other enzymese4
Direction
downregulatede4

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e4

“In roots, HT upregulated the activities of ascorbate peroxidase and glutathione peroxidase but downregulated the activities of other enzymes resulting in increased TBARS levels”

✓ located verbatim in the source · abstract, characters 569–745 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Under HT, TBARS levels increased in roots.

Organ / stage
rootse4
Treatment
HTe4
Outcome
TBARS levelse4
Direction
increasede4

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e4

“In roots, HT upregulated the activities of ascorbate peroxidase and glutathione peroxidase but downregulated the activities of other enzymes resulting in increased TBARS levels”

✓ located verbatim in the source · abstract, characters 569–745 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

TU pre-treatment increased proline content in both shoots and roots under HT.

Organ / stage
shoots and rootse5
Treatment
TU pre-treatmente5
Outcome
Proline contente5
Direction
increasede5

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e5

“Proline content increased with TU pre-treatment in both shoots and roots under HT stress”

✓ located verbatim in the source · abstract, characters 747–835 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

TU pre-treatment enhanced membrane thermostability in both organs.

Organ / stage
both organse6
Treatment
TU pre-treatmente6
Outcome
Membrane thermostabilitye6
Direction
enhancede6

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e6

“Membrane thermostability was also enhanced with TU pre-treatment in both organs”

✓ located verbatim in the source · abstract, characters 837–916 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

TU pre-treatment decreased free amino acids.

Treatment
TU pre-treatmente7
Outcome
free amino acidse7
Direction
decreasede7

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

“high temperature (HT) stressed wheat (Triticum aestivum L. cv. PBW 343) seedlings”

✓ located verbatim in the source · abstract, characters 179–260 · show in text ↑
e7

“However, free amino acids decreased with TU pre-treatment”

✓ located verbatim in the source · abstract, characters 918–975 · show in text ↑

thiourea · physiology: antioxidant enzymes · Triticum aestivum (wheat)Results differ

9 papers: 7 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

5 papers more in this group

See all 9 papers →

thiourea · physiology: osmolytes · Triticum aestivum (wheat)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

thiourea · physiology: oxidative · Triticum aestivum (wheat)Results agree

9 papers: 9 positive, 0 negative or no effect

8 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.