Abstract
The current study investigates a possible mediatory role of uniconazole in improving chilling stress tolerance in chilling-sensitive (Hefeng 50) and chilling-tolerant (Kenfeng 16) soybean varieties. Chilling stress decreased photosynthetic pigments and inhibited net photosynthetic rate which was ascribed to stomatal limitation. The maximum quantum efficiency of PSII primary photochemistry and electron transport rate were lower in uniconazole-treated plants compared with the control. The increased contents of superoxide (O2*-) and malondialdehyde during chilling stress indicated oxidative stress. Chilling stress reduced glutathione and ascorbic acid contents, and promoted peroxidase, glutathione reductase, and ascorbate peroxidase activities. Uniconazole improved the tolerance of chilled plants. This might be due to better antioxidant defense mechanisms including higher contents of antioxidants and activities of antioxidant enzymes, which retard lipid peroxidation. Thus, uniconazole has a positive effect and improves the chilling resistance of soybean.
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Claims 8
Claim · model-written summary
Soybean: Chilling stress decreased photosynthetic pigments
- Taxon
- soybean (Glycine max L.)
Glycine maxt0 - Treatment
- Chilling stresse0
- Outcome
- photosynthetic pigmentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“Chilling stress decreased photosynthetic pigments”
Claim · model-written summary
Soybean: inhibited net photosynthetic rate
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- Chilling stresse1
- Outcome
- net photosynthetic ratee0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“inhibited net photosynthetic rate”
e1“Chilling stress decreased photosynthetic pigments”
Claim · model-written summary
Soybean: The maximum quantum efficiency of PSII primary photochemistry and electron transport rate were lower in uniconazole-treated plants compared with the control.
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- uniconazole-treated plantse0
- Outcome
- maximum quantum efficiency of PSII primary photochemistry and electron transport ratee0
- Direction
- lowere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“The maximum quantum efficiency of PSII primary photochemistry and electron transport rate were lower in uniconazole-treated plants compared with the control.”
Claim · model-written summary
Soybean: The increased contents of superoxide (O2*-) and malondialdehyde during chilling stress indicated oxidative stress.
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- chilling stresse0
- Outcome
- superoxide (O2*-) and malondialdehydee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“The increased contents of superoxide (O2*-) and malondialdehyde during chilling stress indicated oxidative stress.”
Claim · model-written summary
Soybean: Chilling stress reduced glutathione and ascorbic acid contents
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- Chilling stresse0
- Outcome
- glutathione and ascorbic acid contentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“Chilling stress reduced glutathione and ascorbic acid contents”
Claim · model-written summary
Soybean: promoted peroxidase, glutathione reductase, and ascorbate peroxidase activities
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- Chilling stresse1
- Outcome
- peroxidase, glutathione reductase, and ascorbate peroxidase activitiese0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“promoted peroxidase, glutathione reductase, and ascorbate peroxidase activities”
e1“Chilling stress decreased photosynthetic pigments”
Claim · model-written summary
Soybean: Uniconazole improved the tolerance of chilled plants.
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- Uniconazolee0
- Outcome
- tolerance of chilled plantse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“Uniconazole improved the tolerance of chilled plants.”
Claim · model-written summary
Soybean: higher contents of antioxidants and activities of antioxidant enzymes
- Taxon
- soybean (Glycine max L.)Glycine maxt0
- Treatment
- Uniconazolee1
- Outcome
- higher contents of antioxidants and activities of antioxidant enzymese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max L.)”
e0“higher contents of antioxidants and activities of antioxidant enzymes”
e1“Uniconazole improved the tolerance of chilled plants.”
The same questions in other papers
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cold · physiology: oxidative · Glycine max (soybean)Positive and negative results
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- negative
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See all 6 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.