Abstract
Current scenarios under global climate change envisage a considerable increase in ultraviolet B (UV-B) radiation in near future which may affect the productivity and yield quality of major agricultural crops. Present investigation was conducted to examine various defense strategies adopted against elevated UV-B (ambient + 7.2 kJ m-(2) day-(1) ) and their impact on seed nutrients, content and quality of oil including fatty acid profile of two soybean cultivars (JS-335 and PS-1042). Elevated UV-B (eUV-B) exposure leads toward higher unsaturation of fatty acids and changes in other oil quality parameters (acid, iodine and saponification value) indicated that eUV-B favored the synthesis of long-chain fatty acids with fewer carboxylic acid groups, making the oil rancid, with undesirable flavor and low nutritional value. The effect was more severe in JS-335 as compared to PS-1042. Negative effects were also seen on nutrients of soybean seeds. Adverse effects resulted due to insufficient quenching of ROS (superoxide radical and hydrogen peroxide) by the defense system and thus unable to overcome the imposed oxidative stress. Credit of better performance by PS-1042 against eUV-B may be given to the adoption of efficient defense strategies like higher wax deposition, increase in lignin and flavonoids (quercetin and kaempferol) contents.
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Claims 7
Claim · model-written summary
Elevated UV-B increased fatty acid unsaturation.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Elevated UV-B (eUV-B) exposuree1
- Outcome
- unsaturation of fatty acidse1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean cultivars”
e1“Elevated UV-B (eUV-B) exposure leads toward higher unsaturation of fatty acids”
Claim · model-written summary
Elevated UV-B changed acid, iodine and saponification values.
- Taxon
- soybeanGlycine maxe0
- Treatment
- eUV-Be2
- Outcome
- acid, iodine and saponification valuee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean cultivars”
e1“changes in other oil quality parameters (acid, iodine and saponification value)”
e2“Elevated UV-B (eUV-B) exposure leads toward higher unsaturation of fatty acids”
Claim · model-written summary
Elevated UV-B favored long-chain fatty acid synthesis with fewer carboxylic acid groups and lower oil nutritional value.
- Taxon
- soybeanGlycine maxe0
- Treatment
- eUV-Be1
- Outcome
- low nutritional valuee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean cultivars”
e1“eUV-B favored the synthesis of long-chain fatty acids with fewer carboxylic acid groups, making the oil rancid, with undesirable flavor and low nutritional value”
Claim · model-written summary
UV-B effects were more severe in JS-335 than PS-1042.
- Taxon
- soybeanGlycine maxe0
- Material
- JS-335e1
- Outcome
- The effecte1
- Direction
- more severee1
- Comparator
- PS-1042e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean cultivars (JS-335 and PS-1042)”
e1“The effect was more severe in JS-335 as compared to PS-1042”
Claim · model-written summary
Elevated UV-B negatively affected soybean seed nutrients.
- Taxon
- soybeanGlycine maxe0
- Treatment
- eUV-Be1
- Outcome
- nutrients of soybean seedse0
- Direction
- Negative effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Negative effects were also seen on nutrients of soybean seeds”
e1“Elevated UV-B (eUV-B) exposure”
Claim · model-written summary
The authors attribute adverse effects to insufficient ROS quenching by the defense system.
- Taxon
- soybeanGlycine maxe0
- Outcome
- Adverse effectse1
- Qualifier
- insufficient quenching of ROS (superoxide radical and hydrogen peroxide) by the defense systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean cultivars”
e1“Adverse effects resulted due to insufficient quenching of ROS (superoxide radical and hydrogen peroxide) by the defense system”
Claim · model-written summary
PS-1042 performance was attributed to greater wax, lignin and flavonoid defenses.
- Taxon
- soybeanGlycine maxe0
- Material
- PS-1042e1
- Outcome
- better performancee1
- Qualifier
- higher wax deposition, increase in lignin and flavonoids (quercetin and kaempferol) contentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean cultivars (JS-335 and PS-1042)”
e1“Credit of better performance by PS-1042 against eUV-B may be given to the adoption of efficient defense strategies like higher wax deposition, increase in lignin and flavonoids (quercetin and kaempferol) contents”
The same questions in other papers
uv · molecular: metabolites · Glycine max (soybean)Positive and negative results
7 papers in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 papers →uv · nutrient: content · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- negative
- no effect
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.