Abstract
The effect of cutting on the molecular changes underlying sucrose metabolism and the phenylpropanoid pathway in melon fruit (cv. Yugu) during storage at 15 °C was investigated. Furthermore, the key metabolites, enzymes, and genes involved in sucrose and phenylpropanoid metabolism were determined. Results showed that the cutting of melon increased the activities of acid invertase (AI), neutral invertase (NI), and sucrose synthase-cleavage (SS-c) and the expressions of CmAI1/2, CmNI1/2, and CmSS1, while sucrose synthase-synthesis (SS-s) and sucrose phosphate synthase (SPS) activities and the CmSS2/3 and CmSPS1/2/4 gene expressions were suppressed. These led to sucrose decomposition and fructose and glucose accumulation in fresh-cut melon at the early stage of storage. Moreover, cutting increased the activity and gene expression of hexokinase, which accelerated the transformation of hexose in fresh-cut melon. In addition, cutting enhanced the activities of phenylalanine ammonia lyase (PAL), cinnamate-4-hydroxylase (C4H), and 4-coumarate-CoA ligase (4CL) and up-regulated the expressions of CmPAL1-9, CmC4H1-4, and Cm4CL1/2/3, which activated phenylpropanoid metabolism and resulted in phenolic accumulation in fresh-cut melon. These findings demonstrate that cutting of melon can enhance sucrose metabolism and phenylpropanoid pathway by regulating the activities and gene expressions of related enzymes. Therefore, cut-wounding promoted the conversion of sugars to supply the necessary substrates for phenolic accumulation in fresh-cut melon.
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Claims 9
Claim · model-written summary
Cutting increased acid invertase, neutral invertase, and sucrose synthase-cleavage activities.
- Taxon
- melon
.jpg?width=60)
Cucumis meloe0 - Treatment
- cuttinge0
- Outcome
- activities of acid invertase (AI), neutral invertase (NI), and sucrose synthase-cleavage (SS-c)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the cutting of melon increased the activities of acid invertase (AI), neutral invertase (NI), and sucrose synthase-cleavage (SS-c)”
Claim · model-written summary
Cutting increased CmAI1/2, CmNI1/2, and CmSS1 expression.
- Taxon
- melonCucumis meloe0
- Treatment
- cuttinge0
- Outcome
- expressions of CmAI1/2, CmNI1/2, and CmSS1e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cutting of melon increased the activities of acid invertase (AI), neutral invertase (NI), and sucrose synthase-cleavage (SS-c) and the expressions of CmAI1/2, CmNI1/2, and CmSS1”
Claim · model-written summary
Cutting suppressed sucrose synthase-synthesis and sucrose phosphate synthase activities.
- Taxon
- Cucumis melo L.Cucumis melot0
- Treatment
- Cut-Woundingt0
- Outcome
- sucrose synthase-synthesis (SS-s) and sucrose phosphate synthase (SPS) activitiese0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sucrose synthase-synthesis (SS-s) and sucrose phosphate synthase (SPS) activities and the CmSS2/3 and CmSPS1/2/4 gene expressions were suppressed.”
t0“Cut-Wounding Promotes Phenolic Accumulation in Cucumis melo L. Fruit”
Claim · model-written summary
Cutting suppressed CmSS2/3 and CmSPS1/2/4 expression.
- Taxon
- Cucumis melo L.Cucumis melot0
- Treatment
- Cut-Woundingt0
- Outcome
- CmSS2/3 and CmSPS1/2/4 gene expressionse0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CmSS2/3 and CmSPS1/2/4 gene expressions were suppressed.”
t0“Cut-Wounding Promotes Phenolic Accumulation in Cucumis melo L. Fruit”
Claim · model-written summary
Cutting led to sucrose decomposition and fructose and glucose accumulation early in storage.
- Taxon
- melonCucumis meloe0
- Treatment
- fresh-cute0
- Outcome
- fructose and glucose accumulatione0
- Direction
- accumulatione0
- Qualifier
- at the early stage of storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These led to sucrose decomposition and fructose and glucose accumulation in fresh-cut melon at the early stage of storage.”
Claim · model-written summary
Cutting increased hexokinase activity and gene expression.
- Taxon
- melonCucumis melot0
- Treatment
- cuttinge0
- Outcome
- activity and gene expression of hexokinasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cutting increased the activity and gene expression of hexokinase”
t0“melon fruit”
Claim · model-written summary
Cutting enhanced PAL, C4H and 4CL activities.
- Taxon
- Cucumis melo L.Cucumis melot0
- Treatment
- cuttinge0
- Outcome
- activities of phenylalanine ammonia lyase (PAL), cinnamate-4-hydroxylase (C4H), and 4-coumarate-CoA ligase (4CL)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cutting enhanced the activities of phenylalanine ammonia lyase (PAL), cinnamate-4-hydroxylase (C4H), and 4-coumarate-CoA ligase (4CL)”
t0“Cucumis melo L.”
Claim · model-written summary
Cutting upregulated CmPAL1-9, CmC4H1-4 and Cm4CL1/2/3 expression.
- Taxon
- Cucumis melo L.Cucumis melot0
- Treatment
- Cut-Woundingt0
- Outcome
- expressions of CmPAL1-9, CmC4H1-4, and Cm4CL1/2/3e0
- Direction
- up-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“up-regulated the expressions of CmPAL1-9, CmC4H1-4, and Cm4CL1/2/3”
t0“Cut-Wounding Promotes Phenolic Accumulation in Cucumis melo L.”
Claim · model-written summary
Cutting resulted in phenolic accumulation in melon fruit.
- Taxon
- melonCucumis meloe0
- Treatment
- fresh-cute0
- Outcome
- phenolic accumulatione0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulted in phenolic accumulation in fresh-cut melon.”
The same questions in other papers
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