Abstract
Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min. Prior to the temperature treatments there were few ultrastructural differences between uniconazole‐treated seedling roots and the controls. Following exposure to 48°C, electron micrographs revealed near complete loss of normal ultrastructure in control epidermal root cells, whereas cellular integrity was maintained in treated roots, indicating that uniconazole conferred tolerance to high temperature. Total electrolyte, sugar and K + leakage were all greater from control roots than treated roots during exposure to 48°C. Proline content in the roots was unaffected by uniconazole at 22°C but was 25–30% greater in treated tissue than in controls following exposure to 48°C. Malondialdehyde content was unaffected by uniconazole at 22°C but was nearly 20% less in treated tissue than in controls following high temperature exposure. This indicates that uniconazole decreased high‐temperature‐induced lipid peroxidation. Uniconazole elevated several antiox‐idant systems in the roots, including water‐soluble sulfhydryl concentration and catalase, peroxidase and superoxide dismutase activities. These findings are consistent with the hypothesis that uniconazole‐induced stress tolerance is due, at least in part, to enhanced antioxidant activity which reduces stress‐related oxidative damage to cell membranes.
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Claims 8
Claim · model-written summary
In soybean seedling roots exposed to 48°C, uniconazole-treated roots maintained cellular integrity, whereas control epidermal root cells lost near-complete normal ultrastructure.
- Taxon
- Soybean
Glycine maxe1 - Material
- cv. A2e1
- Organ / stage
- epidermal root cellse2
- Treatment
- uniconazolee1
- Outcome
- cellular integritye2
- Direction
- maintainede2
- Qualifier
- exposure to 48°Ce2
- Comparator
- control epidermal root cellse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e2“Following exposure to 48°C, electron micrographs revealed near complete loss of normal ultrastructure in control epidermal root cells, whereas cellular integrity was maintained in treated roots, indicating that uniconazole conferred tolerance to high temperature”
Claim · model-written summary
During exposure to 48°C, total electrolyte, sugar and K+ leakage were greater from control soybean roots than from uniconazole-treated roots.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- uniconazolee1
- Outcome
- Total electrolyte, sugar and K + leakagee3
- Direction
- greatere3
- Qualifier
- during exposure to 48°Ce3
- Comparator
- treated rootse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e3“Total electrolyte, sugar and K + leakage were all greater from control roots than treated roots during exposure to 48°C”
Claim · model-written summary
Proline content in soybean roots was unaffected by uniconazole at 22°C.
- Taxon
- SoybeanGlycine maxe1
- Organ / stage
- rootse4
- Treatment
- uniconazolee1
- Outcome
- Proline contente4
- Direction
- unaffectede4
- Qualifier
- at 22°Ce4
- Comparator
- controlse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e4“Proline content in the roots was unaffected by uniconazole at 22°C but was 25–30% greater in treated tissue than in controls following exposure to 48°C”
Claim · model-written summary
Following exposure to 48°C, proline content in uniconazole-treated soybean roots was 25–30% greater than in controls.
- Taxon
- SoybeanGlycine maxe1
- Organ / stage
- rootse4
- Treatment
- uniconazolee1
- Outcome
- Proline contente4
- Direction
- greatere4
- Value
- 25–30%e4
- Qualifier
- following exposure to 48°Ce4
- Comparator
- controlse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e4“Proline content in the roots was unaffected by uniconazole at 22°C but was 25–30% greater in treated tissue than in controls following exposure to 48°C”
Claim · model-written summary
Malondialdehyde content in soybean roots was unaffected by uniconazole at 22°C.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- uniconazolee1
- Outcome
- Malondialdehyde contente5
- Direction
- unaffectede5
- Qualifier
- at 22°Ce5
- Comparator
- controlse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e5“Malondialdehyde content was unaffected by uniconazole at 22°C but was nearly 20% less in treated tissue than in controls following high temperature exposure”
Claim · model-written summary
Following high temperature exposure, malondialdehyde content in uniconazole-treated soybean roots was nearly 20% lower than in controls.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- uniconazolee1
- Outcome
- Malondialdehyde contente5
- Direction
- lesse5
- Value
- nearly 20%e5
- Qualifier
- following high temperature exposuree5
- Comparator
- controlse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e5“Malondialdehyde content was unaffected by uniconazole at 22°C but was nearly 20% less in treated tissue than in controls following high temperature exposure”
Claim · model-written summary
Uniconazole elevated the activities of catalase, peroxidase and superoxide dismutase in soybean roots.
- Taxon
- SoybeanGlycine maxe1
- Organ / stage
- rootse6
- Treatment
- uniconazolee1
- Outcome
- catalase, peroxidase and superoxide dismutase activitiese6
- Direction
- elevatede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e6“Uniconazole elevated several antiox‐idant systems in the roots, including water‐soluble sulfhydryl concentration and catalase, peroxidase and superoxide dismutase activities”
Claim · model-written summary
Uniconazole elevated water-soluble sulfhydryl concentration in soybean roots.
- Taxon
- SoybeanGlycine maxe1
- Organ / stage
- rootse6
- Treatment
- uniconazolee1
- Outcome
- sulfhydryl concentratione6
- Direction
- elevatede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soybean [Glycine max(L.) Merr. cv. A2] seeds were germinated in 0 or 1 mg 1 1 (3.4 uM) uniconazole, after which seedling roots were excised and exposed to 22 or 48°C for 90 min”
e6“Uniconazole elevated several antiox‐idant systems in the roots, including water‐soluble sulfhydryl concentration and catalase, peroxidase and superoxide dismutase activities”
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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.