Abstract
The content of sucrose, glucose, fructose and the activities of sucrose-metabolizing enzymes (acid invertase, neutral invertase, sucrose synthase and sucrose phosphate synthase) were studied during fruit developing of 'Jiashi' muskmelon (Cucumis melo var. saccharinus Naud) grafted on armour, black seed pumpkin and gourd. The results indicated that the composite action of sucrose-metabolizing enzymes was one of the important factors affecting sugar accumulation in fruit. The transition of sugar accumulation and activity of sucrose-metabolizing enzymes during fruit development of grafted and non-grafted muskmelon were similar. At an early stage of fruit development, sugar accumulated slowly due to higher enzyme activity for sucrose cleavage than that for sucrose synthesis. At a late stage of fruit development, the sugar content increased rapidly because the enzyme activity of sucrose synthesis was higher than that of sucrose cleavage. However, the sugar content in the fruit of all grafted muskmelon were lower than that in the fruit of non-grafted muskmelon during the same stage. However, the development duration of the grafted muskmelon was (20-28 d) longer than that of non-grafted. The fruit maturity date of the grafted muskmelon was delayed for 15-18 d than that of non-grafted. The sugar content in the ripe fruit of grafted muskmelon was higher than that in the fruit of non-grafted muskmelon. The changes of abscisic acid (ABA) and GA3 in the fruit of all grafted muskmelon were retarded and their contents were more than those in non-grafted muskmelon. The activities of invertase at early stage, sucrose phosphate synthase, sucrose synthase and abscisic acid at the late stage influenced by grafting may be responsible for the difference in the accumulation of sugar content in the grafted muskmelon fruit.
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Claims 10
Claim · model-written summary
The transition in fruit sugar accumulation and sucrose-metabolizing enzyme activity was similar in grafted and non-grafted muskmelon.
- Taxon
- muskmelon
.jpg?width=60)
Cucumis meloe0 - Organ / stage
- fruit developmente0
- Outcome
- transition of sugar accumulation and activity of sucrose-metabolizing enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The transition of sugar accumulation and activity of sucrose-metabolizing enzymes during fruit development of grafted and non-grafted muskmelon were similar”
Claim · model-written summary
Early fruit sugar accumulation was slow when sucrose cleavage enzyme activity exceeded synthesis activity.
- Taxon
- muskmelonCucumis meloe1
- Organ / stage
- early stage of fruit developmente0
- Outcome
- sugar accumulated slowlye0
- Qualifier
- higher enzyme activity for sucrose cleavage than that for sucrose synthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At an early stage of fruit development, sugar accumulated slowly due to higher enzyme activity for sucrose cleavage than that for sucrose synthesis”
e1“grafted and non-grafted muskmelon”
Claim · model-written summary
Late fruit sugar content increased rapidly when sucrose synthesis activity exceeded cleavage activity.
- Taxon
- muskmelonCucumis meloe1
- Organ / stage
- late stage of fruit developmente0
- Outcome
- sugar content increased rapidlye0
- Qualifier
- enzyme activity of sucrose synthesis was higher than that of sucrose cleavagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At a late stage of fruit development, the sugar content increased rapidly because the enzyme activity of sucrose synthesis was higher than that of sucrose cleavage”
e1“grafted and non-grafted muskmelon”
Claim · model-written summary
At the same developmental stage, grafted muskmelon fruit had lower sugar content than non-grafted fruit.
- Taxon
- muskmelonCucumis meloe0
- Organ / stage
- fruite0
- Treatment
- graftede0
- Outcome
- sugar contente0
- Direction
- lowere0
- Qualifier
- during the same stagee0
- Comparator
- non-grafted muskmelone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugar content in the fruit of all grafted muskmelon were lower than that in the fruit of non-grafted muskmelon during the same stage”
Claim · model-written summary
Grafting lengthened muskmelon development duration by 20-28 d.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- graftede0
- Outcome
- development duratione0
- Direction
- longere0
- Value
- 20-28 de0
- Comparator
- non-graftede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“development duration of the grafted muskmelon was (20-28 d) longer than that of non-grafted”
Claim · model-written summary
Grafting delayed muskmelon fruit maturity by 15-18 d.
- Taxon
- muskmelonCucumis meloe0
- Treatment
- graftede0
- Outcome
- fruit maturity datee0
- Direction
- delayede0
- Value
- 15-18 de0
- Comparator
- non-graftede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit maturity date of the grafted muskmelon was delayed for 15-18 d than that of non-grafted”
Claim · model-written summary
Ripe grafted muskmelon fruit had higher sugar content than non-grafted fruit.
- Taxon
- muskmelonCucumis meloe0
- Organ / stage
- ripe fruite0
- Treatment
- graftede0
- Outcome
- sugar contente0
- Direction
- highere0
- Comparator
- non-grafted muskmelone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugar content in the ripe fruit of grafted muskmelon was higher than that in the fruit of non-grafted muskmelon”
Claim · model-written summary
Changes in fruit ABA and GA3 were retarded in grafted muskmelon.
- Taxon
- muskmelonCucumis meloe0
- Organ / stage
- fruite0
- Treatment
- graftede0
- Outcome
- changes of abscisic acid (ABA) and GA3e0
- Direction
- retardede0
- Comparator
- non-grafted muskmelone1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“changes of abscisic acid (ABA) and GA3 in the fruit of all grafted muskmelon were retarded”
e1“contents were more than those in non-grafted muskmelon”
Claim · model-written summary
Fruit ABA and GA3 contents were greater in grafted than non-grafted muskmelon.
- Taxon
- muskmelonCucumis meloe0
- Organ / stage
- fruite0
- Treatment
- graftede0
- Outcome
- abscisic acid (ABA) and GA3e0
- Direction
- more thane0
- Comparator
- non-grafted muskmelone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisic acid (ABA) and GA3 in the fruit of all grafted muskmelon were retarded and their contents were more than those in non-grafted muskmelon”
Claim · model-written summary
The authors attribute graft-related sugar differences to early invertase activity and late sucrose phosphate synthase, sucrose synthase and ABA activity.
- Taxon
- muskmelonCucumis meloe0
- Gene
- invertasee0
- Outcome
- difference in the accumulation of sugar contente0
- Qualifier
- may be responsiblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of invertase at early stage, sucrose phosphate synthase, sucrose synthase and abscisic acid at the late stage influenced by grafting may be responsible for the difference in the accumulation of sugar content in the grafted muskmelon fruit”
The same questions in other papers
grafting · quality: sugar starch · Cucumis melo (muskmelon)Results differ
3 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- negative
6 papers more in this group
See all 10 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.