Abstract
Abstract Amino acids aid plant stress tolerance, but their precise role in soybean drought physiology remains unclear. This study included amino acid spray treatments (cysteine, valine, leucine, commercial mix) as subplots and irrigation levels (optimal, mild, severe stress) as main plots. Under optimal irrigation, amino acid and lysine performed best for Fv/Fm, while cysteine performed best under severe stress. For chlorophyll content, cysteine, valine and lysine performed best with optimal irrigation, with little difference across water stress conditions. Under optimal irrigation, leucine and valine had the highest SOD levels, while leucine, valine and commercial amino acids performed best under mild stress. Cysteine and valine showed higher CAT under severe stress. Leucine had the lowest MDA without stress, while the commercial mix performed best under mild stress. Valine, amino acids and cysteine had the highest proline without stress and under mild stress, while cysteine and lysine performed best under severe stress. Minimal differences occurred without stress, while valine, amino acids and cysteine performed best under stress. In 2020, amino acids and valine had the highest photosynthesis, while cysteine performed best under severe stress. Valine had the highest mesophyll conductance, while cysteine and valine performed well in 2021. Valine had the highest CO2 and stomatal conductance without stress. All treatments showed superior transpiration. Without stress in 2020, cysteine, valine and amino acids had the highest oil yield, while leucine had it in 2021. Modulation of osmolytes like proline and antioxidants such as SOD and CAT helped valine and cysteine protect soybean plants against water stress.
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Claims 20
Claim · model-written summary
Under optimal irrigation, amino acid and lysine performed best for soybean Fv/Fm.
- Taxon
- soybean
Glycine maxe0 - Treatment
- amino acid and lysinee1
- Outcome
- Fv/Fme1
- Direction
- performed beste1
- Qualifier
- Under optimal irrigatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Under optimal irrigation, amino acid and lysine performed best for Fv/Fm, while cysteine performed best under severe stress”
Claim · model-written summary
Under severe water stress, cysteine performed best for soybean Fv/Fm.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cysteinee1
- Outcome
- Fv/Fme1
- Direction
- performed beste1
- Qualifier
- under severe stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Under optimal irrigation, amino acid and lysine performed best for Fv/Fm, while cysteine performed best under severe stress”
Claim · model-written summary
Under optimal irrigation, cysteine, valine and lysine performed best for chlorophyll content in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cysteine, valine and lysinee1
- Outcome
- chlorophyll contente1
- Direction
- performed beste1
- Qualifier
- with optimal irrigatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“For chlorophyll content, cysteine, valine and lysine performed best with optimal irrigation, with little difference across water stress conditions”
Claim · model-written summary
Chlorophyll content of soybean showed little difference across water stress conditions.
- Taxon
- soybeanGlycine maxe0
- Treatment
- water stress conditionse1
- Outcome
- chlorophyll contente1
- Direction
- little differencee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“For chlorophyll content, cysteine, valine and lysine performed best with optimal irrigation, with little difference across water stress conditions”
Claim · model-written summary
Under optimal irrigation, leucine and valine had the highest SOD levels in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- leucine and valinee1
- Outcome
- SOD levelse1
- Direction
- higheste1
- Qualifier
- Under optimal irrigatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Under optimal irrigation, leucine and valine had the highest SOD levels, while leucine, valine and commercial amino acids performed best under mild stress”
Claim · model-written summary
Under mild stress, leucine, valine and commercial amino acids performed best for SOD in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- leucine, valine and commercial amino acidse1
- Outcome
- SODe1
- Direction
- performed beste1
- Qualifier
- under mild stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Under optimal irrigation, leucine and valine had the highest SOD levels, while leucine, valine and commercial amino acids performed best under mild stress”
Claim · model-written summary
Cysteine and valine showed higher CAT in soybean under severe stress.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Cysteine and valinee1
- Outcome
- CATe1
- Direction
- highere1
- Qualifier
- under severe stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Cysteine and valine showed higher CAT under severe stress”
Claim · model-written summary
Leucine had the lowest MDA in soybean without stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Leucine had the lowest MDA without stress, while the commercial mix performed best under mild stress”
Claim · model-written summary
The commercial amino acid mix performed best for MDA in soybean under mild stress.
- Taxon
- soybeanGlycine maxe0
- Treatment
- commercial mixe1
- Outcome
- MDAe1
- Direction
- performed beste1
- Qualifier
- under mild stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Leucine had the lowest MDA without stress, while the commercial mix performed best under mild stress”
Claim · model-written summary
Valine, amino acids and cysteine had the highest proline in soybean without stress and under mild stress.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Valine, amino acids and cysteinee1
- Outcome
- prolinee1
- Direction
- higheste1
- Qualifier
- without stress and under mild stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Valine, amino acids and cysteine had the highest proline without stress and under mild stress, while cysteine and lysine performed best under severe stress”
Claim · model-written summary
Under severe stress, cysteine and lysine performed best for proline in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cysteine and lysinee1
- Outcome
- prolinee1
- Direction
- performed beste1
- Qualifier
- under severe stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Valine, amino acids and cysteine had the highest proline without stress and under mild stress, while cysteine and lysine performed best under severe stress”
Claim · model-written summary
Under stress, valine, amino acids and cysteine performed best in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- valine, amino acids and cysteinee1
- Outcome
- performed beste1
- Direction
- performed beste1
- Qualifier
- under stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Minimal differences occurred without stress, while valine, amino acids and cysteine performed best under stress”
Claim · model-written summary
In 2020, amino acids and valine had the highest soybean photosynthesis.
- Taxon
- soybeanGlycine maxe0
- Treatment
- amino acids and valinee1
- Outcome
- photosynthesise1
- Direction
- higheste1
- Qualifier
- In 2020e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“In 2020, amino acids and valine had the highest photosynthesis, while cysteine performed best under severe stress”
Claim · model-written summary
Under severe stress, cysteine performed best for soybean photosynthesis.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cysteinee1
- Outcome
- photosynthesise1
- Direction
- performed beste1
- Qualifier
- under severe stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“In 2020, amino acids and valine had the highest photosynthesis, while cysteine performed best under severe stress”
Claim · model-written summary
Valine had the highest mesophyll conductance in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Valinee1
- Outcome
- mesophyll conductancee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Valine had the highest mesophyll conductance, while cysteine and valine performed well in 2021”
Claim · model-written summary
Cysteine and valine performed well for soybean mesophyll conductance in 2021.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cysteine and valinee1
- Outcome
- mesophyll conductancee1
- Direction
- performed welle1
- Qualifier
- in 2021e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Valine had the highest mesophyll conductance, while cysteine and valine performed well in 2021”
Claim · model-written summary
Valine had the highest CO2 and stomatal conductance in soybean without stress.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Valinee1
- Outcome
- CO2 and stomatal conductancee1
- Direction
- higheste1
- Qualifier
- without stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Valine had the highest CO2 and stomatal conductance without stress”
Claim · model-written summary
All treatments showed superior transpiration in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- All treatmentse1
- Outcome
- transpiratione1
- Direction
- superiore1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“All treatments showed superior transpiration”
Claim · model-written summary
Without stress in 2020, cysteine, valine and amino acids had the highest soybean oil yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cysteine, valine and amino acidse1
- Outcome
- oil yielde1
- Direction
- higheste1
- Qualifier
- Without stress in 2020e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Without stress in 2020, cysteine, valine and amino acids had the highest oil yield, while leucine had it in 2021”
Claim · model-written summary
Leucine had the highest soybean oil yield in 2021 without stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their precise role in soybean drought physiology remains unclear”
e1“Without stress in 2020, cysteine, valine and amino acids had the highest oil yield, while leucine had it in 2021”
The same questions in other papers
cysteine · physiology: photosynthesis · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
valine · physiology: photosynthesis · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
drought · physiology: pigments · Glycine max (soybean)Results differ
31 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
34 papers more in this group
See all 38 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.