Abstract
Two wheat (Triticum aestivum L.) varieties viz. WH 1105 and WH 1025 are subjected to drought stress. The non enzymatic antioxidant defense system which contains antioxidant metabolites such as ascorbic acid, glutathione and carotenoids contents were studied in drought sensitive and drought resistant varieties days after anthesis (DAA) in leaf and grain samples. As part of protective mechanism against drought, wheat plants produced more of ascorbic acid and glutathione with a concomitant decrease in carotenoid content. The increase in ascorbic acid and glutathione were more in WH 1025 than WH 1105. Carotenoids protect plants by minimizing ROS formation by quenching oxygen. The reduction in carotenoid content was observed in both wheat varieties days after anthesis (DAA) in leaf and grain samples but more reduction was observed in WH 1105 which is a drought sensitive variety of wheat. These antioxidant metabolites played a key role in protecting wheat plants against reactive oxygen species (ROS) mediated oxidative damage and their redox buffering capacity generates stress tolerance in drought tolerant wheat variety WH 1025.
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Claims 7
Claim · model-written summary
Wheat ascorbic acid increased under drought.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- droughte0
- Outcome
- ascorbic acide0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As part of protective mechanism against drought, wheat plants produced more of ascorbic acid and glutathione with a concomitant decrease in carotenoid content.”
Claim · model-written summary
Wheat glutathione increased under drought.
- Taxon
- wheatTriticum aestivume0
- Treatment
- droughte0
- Outcome
- glutathionee0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As part of protective mechanism against drought, wheat plants produced more of ascorbic acid and glutathione with a concomitant decrease in carotenoid content.”
Claim · model-written summary
Wheat carotenoid content decreased under drought.
- Taxon
- wheatTriticum aestivume0
- Treatment
- droughte0
- Outcome
- carotenoid contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As part of protective mechanism against drought, wheat plants produced more of ascorbic acid and glutathione with a concomitant decrease in carotenoid content.”
Claim · model-written summary
Ascorbic acid increased more in WH 1025 than WH 1105.
- Taxon
- wheatTriticum aestivumt0
- Material
- WH 1025e0
- Outcome
- ascorbic acide0
- Direction
- moree0
- Comparator
- WH 1105e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in ascorbic acid and glutathione were more in WH 1025 than WH 1105.”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Glutathione increased more in WH 1025 than WH 1105.
- Taxon
- wheatTriticum aestivumt0
- Material
- WH 1025e0
- Outcome
- glutathionee0
- Direction
- moree0
- Comparator
- WH 1105e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in ascorbic acid and glutathione were more in WH 1025 than WH 1105.”
t0“wheat (Triticum aestivum L.)”
Claim · model-written summary
Carotenoid content fell more in drought-sensitive WH 1105 than in WH 1025.
- Taxon
- wheatTriticum aestivume0
- Material
- WH 1105e0
- Organ / stage
- leaf and graine0
- Outcome
- carotenoid contente0
- Direction
- more reductione0
- Qualifier
- days after anthesis (DAA)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in carotenoid content was observed in both wheat varieties days after anthesis (DAA) in leaf and grain samples but more reduction was observed in WH 1105 which is a drought sensitive variety of wheat.”
Claim · model-written summary
Authors attribute drought tolerance in WH 1025 to antioxidant protection and redox buffering.
- Taxon
- wheatTriticum aestivume0
- Material
- WH 1025e0
- Outcome
- stress tolerancee0
- Qualifier
- redox buffering capacitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These antioxidant metabolites played a key role in protecting wheat plants against reactive oxygen species (ROS) mediated oxidative damage and their redox buffering capacity generates stress tolerance in drought tolerant wheat variety WH 1025.”
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