Abstract
Sugar metabolism is among the most important metabolic processes in soybean; it not only affects growth and development, but also plays a role in drought resistance. As a plant biological regulator, exogenous melatonin is assumed to regulate sugar metabolism. Here, physiological and transcriptomic approaches were used to determine the effects of melatonin on physiological indices and key genes and pathways associated with soybean sugar metabolism under drought stress. In plants subjected to drought stress, melatonin treatment increased dry matter accumulation, reduced malondialdehyde content, and increased the content of metabolized sugars in leaves, thereby enhancing soybean yield. Transcriptome analysis revealed that the genes differentially expressed in plants subjected to melatonin treatment and drought stress were enriched in the KEGG “sucrose and starch metabolism” pathway related to glucose metabolism. Among the differentially expressed genes, we identified 12 significantly altered genes associated with glucose metabolism that played roles in regulating the activities of glucose metabolism-related enzymes. Collectively, our results indicated that melatonin can enhance the output of glucose metabolites and tolerance of soybean subjected to drought stress by regulating the genes associated with glucose metabolism and activation of the related enzymes. Our findings provide a detailed theoretical basis for analyzing the regulatory effects of melatonin on soybean sugar metabolism under conditions of drought stress.
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Claims 7
Claim · model-written summary
Melatonin increased dry matter accumulation under drought.
- Taxon
- plantsViridiplantaee0
- Treatment
- melatonin treatmente0
- Outcome
- dry matter accumulatione0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“In plants subjected to drought stress, melatonin treatment increased dry matter accumulation”
Claim · model-written summary
Melatonin reduced malondialdehyde content under drought.
Not reportedTaxonComparator
Verbatim
e0“melatonin treatment increased dry matter accumulation, reduced malondialdehyde content”
Claim · model-written summary
Melatonin increased metabolized sugars in leaves under drought.
- Organ / stage
- leavese0
- Treatment
- melatonin treatmente0
- Outcome
- content of metabolized sugarse0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“melatonin treatment increased dry matter accumulation, reduced malondialdehyde content, and increased the content of metabolized sugars in leaves”
Claim · model-written summary
Melatonin enhanced soybean yield under drought.
- Taxon
- soybean
Glycine maxe0 - Outcome
- soybean yielde0
- Direction
- enhancinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thereby enhancing soybean yield”
Claim · model-written summary
Genes differentially expressed under melatonin and drought were enriched in sucrose and starch metabolism.
- Taxon
- plantsViridiplantaee0
- Treatment
- melatonin treatment and drought stresse0
- Outcome
- enriched in the KEGG “sucrose and starch metabolism” pathwaye0
Verbatim
e0“genes differentially expressed in plants subjected to melatonin treatment and drought stress were enriched in the KEGG “sucrose and starch metabolism” pathway”
Claim · model-written summary
Twelve glucose metabolism genes were significantly altered.
Not reportedTaxon
Verbatim
e0“identified 12 significantly altered genes associated with glucose metabolism”
Claim · model-written summary
The authors interpreted melatonin as enhancing glucose metabolites and drought tolerance through glucose metabolism genes and enzymes.
- Taxon
- soybeanGlycine maxe0
- Treatment
- melatonine0
- Outcome
- output of glucose metabolites and tolerancee0
- Direction
- enhancee0
- Qualifier
- regulating the genes associated with glucose metabolism and activation of the related enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin can enhance the output of glucose metabolites and tolerance of soybean subjected to drought stress by regulating the genes associated with glucose metabolism and activation of the related enzymes”
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