Abstract
Effects of putrescine (Put) on responses of wheat (Triticum aestivum) seedlings or detached tillers at mid-milky stage to high temperature (HT) stress were investigated. The heat tolerant cv. PBW 343 exhibited higher content of antioxidants and activities of antioxidative enzymes, while lower content of lipid peroxides as compared to the heat-sensitive cv. HD 2329. HT elevated peroxidase (POX) and superoxide dismutase (SOD) activities, while diamine oxidase (DAO) and polyamine oxidase (PAO) activities were reduced in roots, shoots and developing grains. Application of Put under HT further enhanced POX and SOD activities along with increased content of ascorbate and tocophereol in grains. Invariably POX and SOD revealed higher activities in roots while CAT, DAO and PAO activities were higher in shoots. The content of lipid peroxides was increased in roots and shoots of HT stressed seedlings but less in Put-treated cv. PBW 343.
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Claims 11
Claim · model-written summary
Heat-tolerant PBW 343 had higher antioxidant content than heat-sensitive HD 2329.
- Taxon
- wheat
Triticum aestivume2 - Material
- PBW 343e0
- Outcome
- content of antioxidantse0
- Direction
- highere0
- Comparator
- HD 2329e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“heat tolerant cv. PBW 343 exhibited higher content of antioxidants”
e1“heat-sensitive cv. HD 2329”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
Heat-tolerant PBW 343 had higher antioxidative enzyme activities than heat-sensitive HD 2329.
- Taxon
- wheatTriticum aestivume2
- Material
- PBW 343e0
- Outcome
- activities of antioxidative enzymese0
- Direction
- highere0
- Comparator
- HD 2329e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“heat tolerant cv. PBW 343 exhibited higher content of antioxidants and activities of antioxidative enzymes”
e1“heat-sensitive cv. HD 2329”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
Heat-tolerant PBW 343 had lower lipid peroxide content than heat-sensitive HD 2329.
- Taxon
- wheatTriticum aestivume2
- Material
- PBW 343e1
- Outcome
- content of lipid peroxidese0
- Direction
- lowere0
- Comparator
- HD 2329e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower content of lipid peroxides as compared to the heat-sensitive cv. HD 2329”
e1“heat tolerant cv. PBW 343”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
High temperature elevated wheat POX and SOD activities.
- Taxon
- wheatTriticum aestivume2
- Treatment
- high temperature (HT) stresse1
- Outcome
- peroxidase (POX) and superoxide dismutase (SOD) activitiese0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HT elevated peroxidase (POX) and superoxide dismutase (SOD) activities”
e1“high temperature (HT) stress”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
High temperature reduced wheat DAO and PAO activities in roots, shoots, and developing grains.
- Taxon
- wheatTriticum aestivume2
- Organ / stage
- roots, shoots and developing grainse0
- Treatment
- high temperature (HT) stresse1
- Outcome
- diamine oxidase (DAO) and polyamine oxidase (PAO) activitiese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diamine oxidase (DAO) and polyamine oxidase (PAO) activities were reduced in roots, shoots and developing grains”
e1“high temperature (HT) stress”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
Putrescine under heat further enhanced wheat POX and SOD activities.
- Taxon
- wheatTriticum aestivume2
- Treatment
- Application of Put under HTe0
- Outcome
- POX and SOD activitiese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Put under HT further enhanced POX and SOD activities”
e1“putrescine (Put)”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
Putrescine under heat increased ascorbate and tocophereol content in developing wheat grains.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- grainse0
- Treatment
- Application of Put under HTe0
- Outcome
- content of ascorbate and tocophereole0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Put under HT further enhanced POX and SOD activities along with increased content of ascorbate and tocophereol in grains”
e1“wheat (Triticum aestivum)”
Claim · model-written summary
POX and SOD activities were higher in wheat roots than shoots.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- rootse0
- Outcome
- POX and SOD revealed higher activitiese0
- Direction
- highere0
- Comparator
- shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“POX and SOD revealed higher activities in roots while CAT, DAO and PAO activities were higher in shoots”
e1“wheat (Triticum aestivum)”
Claim · model-written summary
CAT, DAO and PAO activities were higher in wheat shoots than roots.
- Taxon
- wheatTriticum aestivume2
- Organ / stage
- shootse0
- Outcome
- CAT, DAO and PAO activitiese0
- Direction
- highere0
- Comparator
- rootse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CAT, DAO and PAO activities were higher in shoots”
e1“POX and SOD revealed higher activities in roots while CAT, DAO and PAO activities were higher in shoots”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
Heat stress increased lipid peroxide content in wheat seedling roots and shoots.
- Taxon
- wheatTriticum aestivume2
- Organ / stage
- roots and shootse0
- Treatment
- high temperature (HT) stresse1
- Outcome
- content of lipid peroxidese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of lipid peroxides was increased in roots and shoots of HT stressed seedlings”
e1“high temperature (HT) stress”
e2“wheat (Triticum aestivum)”
Claim · model-written summary
Putrescine-treated PBW 343 had less lipid peroxide content under heat stress.
- Taxon
- wheatTriticum aestivume1
- Material
- PBW 343e0
- Treatment
- Put-treatede0
- Outcome
- content of lipid peroxidese0
- Direction
- lesse0
- Comparator
- HT stressed seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“content of lipid peroxides was increased in roots and shoots of HT stressed seedlings but less in Put-treated cv. PBW 343”
e1“wheat (Triticum aestivum)”
The same questions in other papers
putrescine · physiology: antioxidant enzymes · Triticum aestivum (wheat)Results agree
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- positive
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- positive
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- positive
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See all 11 papers →heat · physiology: antioxidant enzymes · Triticum aestivum (wheat)Results differ
16 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- negative
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See all 28 papers →heat · molecular: metabolites · Triticum aestivum (wheat)Results differ
25 papers in the same direction as this paper · 36 in the opposite direction
- no effect
- negative
- no effect
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See all 62 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.