Abstract
There is a growing need to enhance the productivity of soybean (Glycine max L.) under severe drought conditions in order to improve global food security status. Melatonin, a ubiquitous hormone, could alleviate drought stress in various plants. Earlier, we demonstrated that exogenous melatonin treatment could enhance the tolerance of drought-treated soybean. However, the underlying mechanisms by which this hormone exerts drought resistance is still unclear. The present study used transcriptomic and metabolomic techniques to determine some critical genes and pathways regulating melatonin response to drought conditions. Results showed that exogenous melatonin treatment could increase relative water content and decrease electrolyte leakage in the leaves and increase seed yield under drought stress. Transcriptomic analysis showed that there were 852 core differentially expressed genes (DEGs) that were regulated by drought stress and melatonin in soybean leaves. The most enriched drought-responsive genes are mainly involved in the 'biosynthesis of secondary metabolites'. Metabolomic profiling under drought stress showed higher accumulation levels of secondary metabolites related to drought tolerance after exogenous melatonin treatment. Also, we highlighted the vital role of the pathways including phenylpropanoid, flavonoid, isoflavonoid, and steroid biosynthesis pathways for improvement of drought tolerance in soybean by exogenous melatonin treatment. In all, findings from this study give detailed molecular basis for the application of melatonin as a drought-resistant agent in soybean cultivation.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Melatonin raised leaf relative water content under drought.
- Organ / stage
- leavese0
- Treatment
- exogenous melatonin treatmente0
- Outcome
- relative water contente0
- Direction
- increasee0
- Qualifier
- under drought stresse0
Not reportedTaxonComparator
Verbatim
e0“exogenous melatonin treatment could increase relative water content and decrease electrolyte leakage in the leaves and increase seed yield under drought stress”
Claim · model-written summary
Melatonin reduced leaf electrolyte leakage under drought.
- Organ / stage
- leavese0
- Treatment
- exogenous melatonin treatmente0
- Outcome
- electrolyte leakagee0
- Direction
- decreasee0
- Qualifier
- under drought stresse0
Not reportedTaxonComparator
Verbatim
e0“exogenous melatonin treatment could increase relative water content and decrease electrolyte leakage in the leaves and increase seed yield under drought stress”
Claim · model-written summary
Melatonin increased seed yield under drought.
- Treatment
- exogenous melatonin treatmente0
- Outcome
- seed yielde0
- Direction
- increasee0
- Qualifier
- under drought stresse0
Not reportedTaxonComparator
Verbatim
e0“exogenous melatonin treatment could increase relative water content and decrease electrolyte leakage in the leaves and increase seed yield under drought stress”
Claim · model-written summary
Drought and melatonin regulated 852 core differentially expressed genes in soybean leaves.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- leavese0
- Outcome
- core differentially expressed genes (DEGs)e0
- Value
- 852e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were 852 core differentially expressed genes (DEGs) that were regulated by drought stress and melatonin in soybean leaves”
Claim · model-written summary
The most enriched drought-responsive genes were involved in secondary metabolite biosynthesis.
- Taxon
- soybeanGlycine maxt0
- Outcome
- drought-responsive genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most enriched drought-responsive genes are mainly involved in the 'biosynthesis of secondary metabolites'”
t0“soybean”
Claim · model-written summary
Melatonin raised accumulation of drought-tolerance-related secondary metabolites.
- Taxon
- soybeanGlycine maxt0
- Treatment
- exogenous melatonin treatmente0
- Outcome
- accumulation levels of secondary metabolitese0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher accumulation levels of secondary metabolites related to drought tolerance after exogenous melatonin treatment”
t0“soybean”
Claim · model-written summary
The authors highlighted phenylpropanoid, flavonoid, isoflavonoid, and steroid biosynthesis pathways in melatonin-mediated drought tolerance.
- Taxon
- soybeanGlycine maxe0
- Treatment
- exogenous melatonin treatmente0
- Outcome
- improvement of drought tolerancee0
- Qualifier
- phenylpropanoid, flavonoid, isoflavonoid, and steroid biosynthesis pathwayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the vital role of the pathways including phenylpropanoid, flavonoid, isoflavonoid, and steroid biosynthesis pathways for improvement of drought tolerance in soybean by exogenous melatonin treatment”
The same questions in other papers
melatonin · quality: phytochemicals · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- positive
- positive
melatonin · physiology: water · Glycine max (soybean)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
melatonin · yield · Glycine max (soybean)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →melatonin · physiology: oxidative · Glycine max (soybean)Results agree
17 papers in the same direction as this paper
- positive
- positive
- positive
14 papers more in this group
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.