Abstract
Exogenous melatonin (MT) is widely used in fruit preservation, and can increase the storage time and delay the quality deterioration. Firstly, it was found that 150 μM MT was the optimal concentration to treat 'Xinli No.7' under storage at 4 °C for 60 days. MT could significantly improve oxidase activity and inhibit the reduction of physiological indexes, including pulp hardness, weight loss, titratable acid and soluble solid content. MT could also reduce ethylene release and limit the reduction of fruit aroma. The average content of fruit aroma substance increased by 43.53%. A relevant RNA-Seq database was built to further explore the regulation mechanism of MT. A total of 2,761 differentially expressed genes (DEGs) were identified. DEGs were enriched in 64 functional groups and 191 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. DEGs were mainly enriched in alpha-linolenic acid metabolism, fatty acid metabolism and plant hormone signal transduction pathway. The gene pycom09g05270 belonging to long chain acyl-CoA synthetase family and participating in fatty acid metabolism pathway was identified, and its expression level was consistent with fragments per kilobase per million mapped reads (FPKM) values, implying that pycom09g05270 might play a vital role in maintaining quality during the storage process.
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Claims 13
Claim · model-written summary
150 μM exogenous melatonin was the optimal concentration for pear 'Xinli No.7' stored at 4 °C for 60 days.
- Taxon
- pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communist0 - Material
- Xinli No.7e0
- Treatment
- 150 μM MTe0
- Outcome
- optimal concentratione0
- Direction
- optimale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
t0“pear fruit”
e0“150 μM MT was the optimal concentration to treat 'Xinli No.7' under storage at 4 °C for 60 days”
Claim · model-written summary
Melatonin significantly improved oxidase activity in stored pear fruit.
- Taxon
- pearPyrus communist0
- Treatment
- MTe1
- Outcome
- oxidase activitye1
- Direction
- improvee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e1“MT could significantly improve oxidase activity and inhibit the reduction of physiological indexes, including pulp hardness, weight loss, titratable acid and soluble solid content”
Claim · model-written summary
Melatonin inhibited the reduction of pulp hardness, weight loss and titratable acid in stored pear fruit.
- Taxon
- pearPyrus communist0
- Treatment
- MTe1
- Outcome
- physiological indexes, including pulp hardness, weight loss, titratable acide1
- Direction
- inhibit the reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e1“MT could significantly improve oxidase activity and inhibit the reduction of physiological indexes, including pulp hardness, weight loss, titratable acid and soluble solid content”
Claim · model-written summary
Melatonin inhibited the reduction of soluble solid content in stored pear fruit.
- Taxon
- pearPyrus communist0
- Treatment
- MTe1
- Outcome
- soluble solid contente1
- Direction
- inhibit the reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e1“MT could significantly improve oxidase activity and inhibit the reduction of physiological indexes, including pulp hardness, weight loss, titratable acid and soluble solid content”
Claim · model-written summary
Melatonin reduced ethylene release from stored pear fruit.
- Taxon
- pearPyrus communist0
- Treatment
- MTe2
- Outcome
- ethylene releasee2
- Direction
- reducee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e2“MT could also reduce ethylene release and limit the reduction of fruit aroma”
Claim · model-written summary
Melatonin limited the reduction of fruit aroma in stored pear fruit.
- Taxon
- pearPyrus communist0
- Treatment
- MTe2
- Outcome
- fruit aromae2
- Direction
- limit the reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e2“MT could also reduce ethylene release and limit the reduction of fruit aroma”
Claim · model-written summary
Melatonin treatment increased the average content of aroma substances in stored pear fruit by 43.53%.
- Taxon
- pearPyrus communist0
- Treatment
- MTe2
- Outcome
- content of fruit aroma substancee3
- Direction
- increasede3
- Value
- 43.53%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e2“MT could also reduce ethylene release and limit the reduction of fruit aroma”
e3“The average content of fruit aroma substance increased by 43.53%”
Claim · model-written summary
A total of 2,761 differentially expressed genes were identified in pear fruit under melatonin treatment in storage.
- Taxon
- pearPyrus communist0
- Outcome
- differentially expressed genese4
- Value
- 2,761e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e4“A total of 2,761 differentially expressed genes (DEGs) were identified”
Claim · model-written summary
The differentially expressed genes were enriched in 64 functional groups.
- Taxon
- pearPyrus communist0
- Outcome
- functional groupse5
- Value
- 64e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e5“DEGs were enriched in 64 functional groups and 191 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways”
Claim · model-written summary
The differentially expressed genes were enriched in 191 KEGG pathways.
- Taxon
- pearPyrus communist0
- Outcome
- Kyoto Encyclopedia of Genes and Genomes (KEGG) pathwayse5
- Value
- 191e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e5“DEGs were enriched in 64 functional groups and 191 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways”
Claim · model-written summary
The differentially expressed genes were mainly enriched in alpha-linolenic acid metabolism, fatty acid metabolism and plant hormone signal transduction.
- Taxon
- pearPyrus communist0
- Outcome
- alpha-linolenic acid metabolism, fatty acid metabolism and plant hormone signal transduction pathwaye6
- Qualifier
- mainly enrichede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e6“DEGs were mainly enriched in alpha-linolenic acid metabolism, fatty acid metabolism and plant hormone signal transduction pathway”
Claim · model-written summary
Gene pycom09g05270 was identified in the fatty acid metabolism pathway, and its expression level was consistent with FPKM values.
- Taxon
- pearPyrus communist0
- Gene
- pycom09g05270e7
- Outcome
- expression levele7
- Qualifier
- consistent with fragments per kilobase per million mapped reads (FPKM) valuese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e7“The gene pycom09g05270 belonging to long chain acyl-CoA synthetase family and participating in fatty acid metabolism pathway was identified, and its expression level was consistent with fragments per kilobase per million mapped reads (FPKM) values, implying that pycom09g05270 might play a vital role in maintaining quality during the storage process”
Claim · model-written summary
Gene pycom09g05270 might play a vital role in maintaining pear fruit quality during storage.
- Taxon
- pearPyrus communist0
- Gene
- pycom09g05270e7
- Outcome
- maintaining quality during the storage processe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pear fruit”
e7“The gene pycom09g05270 belonging to long chain acyl-CoA synthetase family and participating in fatty acid metabolism pathway was identified, and its expression level was consistent with fragments per kilobase per million mapped reads (FPKM) values, implying that pycom09g05270 might play a vital role in maintaining quality during the storage process”
The same questions in other papers
melatonin · physiology: hormones · Pyrus communis (pear)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
melatonin · molecular: metabolites · Pyrus communis (pear)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
melatonin · quality: phytochemicals · Pyrus communis (pear)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.