Abstract
Abstract BACKGROUND Climate change has caused an increase in the frequency and intensity of heatwaves, worldwide, which subject plants to thermal stress for short periods; this can affect the quality of melon fruits, both negatively and positively. Since the application of putrescine has been shown to help increase tolerance of abiotic stresses, the objective of this work is to determine the effects of the foliar application of putrescine (1.5 and 5 mmol L ‐1 ) before a short heat stress (HS) on the quality of melon fruits. RESULTS The results indicate that HS had a positive effect on the quality of melon fruits, since it increased the total sugars and polyamines contents and the antioxidant capacity, and reduced the presence of substances undesirable in foods such as nitrate. However, the fruit quality was further increased by the combination of HS and putrescine (5 mmol L ‐1 ). In this case, the melon fruits showed increases in their antioxidant capacity and contents of polyamines, amino acids and minerals beneficial to health. The nitrate concentration was even lower than in the control fruits. CONCLUSION This novel study highlights the possibility of improving the nutritional quality of melon pulp by applying foliar putrescine in combination with a short period of high temperature. © 2020 Society of Chemical Industry
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Claims 9
Claim · model-written summary
Heat stress increased melon fruit total sugars.
- Taxon
- melon
.jpg?width=60)
Cucumis melot0 - Treatment
- HSe0
- Outcome
- total sugarse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“HS had a positive effect on the quality of melon fruits, since it increased the total sugars and polyamines contents and the antioxidant capacity, and reduced the presence of substances undesirable in foods such as nitrate.”
t0“melon fruits”
Claim · model-written summary
Heat stress increased melon fruit polyamines contents.
- Taxon
- melonCucumis melot0
- Treatment
- HSe0
- Outcome
- polyamines contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HS had a positive effect on the quality of melon fruits, since it increased the total sugars and polyamines contents and the antioxidant capacity, and reduced the presence of substances undesirable in foods such as nitrate.”
t0“melon fruits”
Claim · model-written summary
Heat stress increased melon fruit antioxidant capacity.
- Taxon
- melonCucumis melot0
- Treatment
- HSe0
- Outcome
- antioxidant capacitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HS had a positive effect on the quality of melon fruits, since it increased the total sugars and polyamines contents and the antioxidant capacity, and reduced the presence of substances undesirable in foods such as nitrate.”
t0“melon fruits”
Claim · model-written summary
Heat stress reduced melon fruit nitrate.
- Taxon
- melonCucumis melot0
- Treatment
- HSe0
- Outcome
- nitratee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HS had a positive effect on the quality of melon fruits, since it increased the total sugars and polyamines contents and the antioxidant capacity, and reduced the presence of substances undesirable in foods such as nitrate.”
t0“melon fruits”
Claim · model-written summary
Combined heat stress and 5 mmol L ‐1 putrescine further increased fruit quality.
- Taxon
- melonCucumis melot0
- Treatment
- combination of HS and putrescine (5 mmol L ‐1 )e0
- Outcome
- fruit qualitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the fruit quality was further increased by the combination of HS and putrescine (5 mmol L ‐1 ).”
t0“melon fruits”
Claim · model-written summary
The combined treatment increased melon fruit antioxidant capacity.
- Taxon
- melonCucumis meloe0
- Outcome
- antioxidant capacitye0
- Direction
- increasese0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the melon fruits showed increases in their antioxidant capacity and contents of polyamines, amino acids and minerals beneficial to health.”
Claim · model-written summary
The combined treatment increased melon fruit polyamines, amino acids and minerals.
- Taxon
- melonCucumis meloe0
- Outcome
- polyamines, amino acids and mineralse0
- Direction
- increasese0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the melon fruits showed increases in their antioxidant capacity and contents of polyamines, amino acids and minerals beneficial to health.”
Claim · model-written summary
The combined treatment lowered nitrate concentration relative to control fruits.
- Taxon
- melonCucumis melot0
- Outcome
- nitrate concentratione0
- Direction
- lowere0
- Comparator
- control fruitse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrate concentration was even lower than in the control fruits.”
t0“melon fruits”
Claim · model-written summary
The authors suggest foliar putrescine combined with short high temperature to improve melon pulp quality.
- Taxon
- melonCucumis meloe0
- Treatment
- foliar putrescine in combination with a short period of high temperaturee0
- Outcome
- improving the nutritional quality of melon pulpe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This novel study highlights the possibility of improving the nutritional quality of melon pulp by applying foliar putrescine in combination with a short period of high temperature.”
The same questions in other papers
putrescine · quality: grain · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- positive
heat · quality: grain · Cucumis melo (muskmelon)Positive and negative results
1 reporting no difference from an alternative
- no effect
heat · quality: phytochemicals · Cucumis melo (muskmelon)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
heat · quality: sugar starch · Cucumis melo (muskmelon)Positive and negative results
3 in the opposite direction
- no effect
- no effect
- no effect
heat · molecular: metabolites · Cucumis melo (muskmelon)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →heat · nutrient: content · Cucumis melo (muskmelon)Results agree
1 paper in the same direction as this paper
- 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.