Abstract
Pink rot caused by Trichothecium roseum is an important postharvest disease of muskmelon, and caused very serious postharvest losses. In this study, sodium nitroprusside (SNP), an exogenous nitric oxide donor, was applied four times during fruit development to muskmelon. The effect of SNP sprays on pink rot in harvested fruit and the influence on the mechanism of antioxidant enzymes and the phenylpropanoid pathway were investigated. The results showed that SNP sprays significantly reduced decay incidence and lesion area of muskmelon inoculated with T. roseum. SNP sprays induced the production of H2O2 in fruit at harvest, maintained cell membrane integrity, and increased the activity of superoxide dismutase, catalase, peroxidase, and ascorbate peroxidase during storage. In addition, SNP sprays also increased the activity of phenylalanine ammonia-lyase, cinnamate-4-hydroxylase, and 4-coumaroyl-CoA ligase, and promoted the accumulation of total phenolic, flavonoid, and lignin content in harvested muskmelon at harvest and during storage. These results suggesting a new possible way of prevention of postharvest pathogens. Practical applications Muskmelon is an important cash crop in the world, due to its unique appearance and intrinsic quality. However, postharvest losses of the muskmelon fruit are serious. Pink rot caused by Trichothecium roseum is one of the main reasons for the postharvest losses of harvested muskmelon. SNP preharvest sprays effectively induced the resistance and reduced decay incidence and lesion area of muskmelon inoculated with T. roseum. Compared with the postharvest treatment, which involves complete exposure, preharvest sprays not only affects the fruit, but also other portions of the plants, which could indirectly affect fruit quality. In addition, the preharvest treatment operation is simple and convenient, and the control effect is better than the postharvest treatment. Therefore, this work may provide a new approach for the control of postharvest diseases of muskmelon.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 9
Claim · model-written summary
SNP sprays significantly reduced decay incidence in muskmelon inoculated with T. roseum.
- Taxon
- muskmelon
.jpg?width=60)
Cucumis meloe0 - Treatment
- SNP sprayse0
- Interactor
- T. roseum
Trichothecium roseume0pathogen - Outcome
- decay incidencee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“SNP sprays significantly reduced decay incidence and lesion area of muskmelon inoculated with T. roseum.”
Claim · model-written summary
SNP sprays significantly reduced lesion area in inoculated muskmelon.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- SNP sprayse0
- Interactor
- T. roseumTrichothecium roseume0pathogen
- Outcome
- lesion areae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP sprays significantly reduced decay incidence and lesion area of muskmelon inoculated with T. roseum.”
Claim · model-written summary
SNP sprays induced H2O2 production at fruit harvest.
- Taxon
- muskmelonCucumis melot0
- Organ / stage
- fruite0
- Treatment
- SNP sprayse0
- Outcome
- production of H2O2e0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP sprays induced the production of H2O2 in fruit at harvest”
t0“muskmelon”
Claim · model-written summary
SNP sprays maintained fruit cell membrane integrity.
- Taxon
- muskmelonCucumis melot0
- Treatment
- SNP sprayse1
- Outcome
- cell membrane integritye0
- Direction
- maintainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintained cell membrane integrity”
e1“SNP sprays induced the production of H2O2 in fruit at harvest”
t0“muskmelon”
Claim · model-written summary
SNP sprays increased four antioxidant enzyme activities during storage.
- Taxon
- muskmelonCucumis melot0
- Treatment
- SNP sprayse0
- Outcome
- activity of superoxide dismutase, catalase, peroxidase, and ascorbate peroxidasee0
- Direction
- increasede0
- Qualifier
- during storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP sprays induced the production of H2O2 in fruit at harvest, maintained cell membrane integrity, and increased the activity of superoxide dismutase, catalase, peroxidase, and ascorbate peroxidase during storage.”
t0“muskmelon”
Claim · model-written summary
SNP sprays increased phenylpropanoid enzyme activities.
- Taxon
- muskmelonCucumis melot0
- Treatment
- SNP sprayse0
- Outcome
- activity of phenylalanine ammonia-lyase, cinnamate-4-hydroxylase, and 4-coumaroyl-CoA ligasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SNP sprays also increased the activity of phenylalanine ammonia-lyase, cinnamate-4-hydroxylase, and 4-coumaroyl-CoA ligase”
t0“muskmelon”
Claim · model-written summary
SNP sprays promoted total phenolic, flavonoid and lignin accumulation.
- Taxon
- muskmelonCucumis meloe0
- Organ / stage
- harvested muskmelone0
- Treatment
- SNP sprayse1
- Outcome
- accumulation of total phenolic, flavonoid, and lignin contente0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“promoted the accumulation of total phenolic, flavonoid, and lignin content in harvested muskmelon at harvest and during storage.”
e1“SNP sprays also increased”
Claim · model-written summary
Preharvest treatment had better disease control than postharvest treatment.
- Taxon
- muskmelonCucumis melot0
- Treatment
- preharvest treatmente1
- Outcome
- control effecte0
- Direction
- bettere0
- Comparator
- postharvest treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the control effect is better than the postharvest treatment.”
e1“preharvest treatment operation is simple and convenient”
t0“muskmelon”
Claim · model-written summary
Preharvest sprays may provide an approach to control postharvest muskmelon disease.
- Taxon
- muskmelonCucumis meloe0
- Outcome
- control of postharvest diseasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this work may provide a new approach for the control of postharvest diseases of muskmelon.”
The same questions in other papers
application · physiology: oxidative · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
application · physiology: antioxidant enzymes · Cucumis melo (muskmelon)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →application · quality: phytochemicals · Cucumis melo (muskmelon)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 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.