Abstract
Fodder soybean (Glycine max L.) with high protein and yield is a popular forage grass in northeast China. Seasonal drought inhibits its growth and development during seedling stage. The objective of this study was to observe morpho-physiological changes in fodder soybean seedlings under melatonin (MT) treatments and identify appropriate concentration to alleviate the drought damage. Two varieties commonly used in northeast China were treated with 0, 50, 100, and 150 μM melatonin at soil water content of 30%. The results indicated that applying melatonin enhanced height, biomass and altered root morphology of fodder soybean seedlings under water-deficient conditions. The treatments with melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA, while boosting the capacity of the antioxidant defense system and the content of osmotic adjustment substances. Meanwhile, increases in light energy capture and transmission efficiency were observed. Furthermore, treatment with melatonin regulated the expression levels of genes associated with photosynthesis and the antioxidant defense system. Notably, 100 μM melatonin treatment produced the most favorable effect in all treatments under drought conditions. These research results provide new information for enhancing the drought tolerance of fodder soybean using chemical measures.
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Claims 13
Claim · model-written summary
Melatonin enhanced soybean seedling height under water deficit.
Not reportedComparator
Verbatim
e0“applying melatonin enhanced height, biomass and altered root morphology of fodder soybean seedlings under water-deficient conditions”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin enhanced seedling biomass under water deficit.
Not reportedComparator
Verbatim
e0“applying melatonin enhanced height, biomass and altered root morphology of fodder soybean seedlings under water-deficient conditions”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin altered seedling root morphology under water deficit.
Not reportedComparator
Verbatim
e0“applying melatonin enhanced height, biomass and altered root morphology of fodder soybean seedlings under water-deficient conditions”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin significantly reduced H2O2 content.
- Taxon
- Fodder Soybeant0
- Treatment
- melatonin at different concentrationse0
- Outcome
- contents of H2O2e0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin significantly reduced O2− content.
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin significantly reduced MDA content.
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin boosted antioxidant defense capacity.
- Taxon
- Fodder Soybeant0
- Treatment
- melatonine0
- Outcome
- capacity of the antioxidant defense systeme0
- Direction
- boostinge0
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA, while boosting the capacity of the antioxidant defense system and the content of osmotic adjustment substances”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin boosted osmotic adjustment substance content.
- Taxon
- Fodder Soybeant0
- Treatment
- melatonine0
- Outcome
- content of osmotic adjustment substancese0
- Direction
- boostinge0
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA, while boosting the capacity of the antioxidant defense system and the content of osmotic adjustment substances”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin increased light energy capture efficiency.
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA, while boosting the capacity of the antioxidant defense system and the content of osmotic adjustment substances. Meanwhile, increases in light energy capture and transmission efficiency were observed”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin increased light energy transmission efficiency.
Not reportedComparator
Verbatim
e0“melatonin at different concentrations significantly reduced the contents of H2O2, O2− and MDA, while boosting the capacity of the antioxidant defense system and the content of osmotic adjustment substances. Meanwhile, increases in light energy capture and transmission efficiency were observed”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin regulated photosynthesis related gene expression.
- Taxon
- Fodder Soybeant0
- Treatment
- melatonine0
- Outcome
- expression levels of genes associated with photosynthesise0
Not reportedComparatorDirection
Verbatim
e0“treatment with melatonin regulated the expression levels of genes associated with photosynthesis and the antioxidant defense system”
t0“Fodder Soybean”
Claim · model-written summary
Melatonin regulated antioxidant defense gene expression.
- Taxon
- Fodder Soybeant0
- Treatment
- melatonine0
- Outcome
- expression levels of genes associated with photosynthesis and the antioxidant defense systeme0
Not reportedComparatorDirection
Verbatim
e0“treatment with melatonin regulated the expression levels of genes associated with photosynthesis and the antioxidant defense system”
t0“Fodder Soybean”
Claim · model-written summary
The 100 μM melatonin treatment had the most favorable overall effect under drought.
Verbatim
e0“100 μM melatonin treatment produced the most favorable effect in all treatments under drought conditions”
t0“Fodder Soybean”
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See all 18 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.