Abstract
Prestorage infiltration of `Golden Delicious' apples (Malus domestica Borkh.) with calcium (Ca) retarded texture changes during storage at 0C and inhibited ethylene production of the fruit at 20C. Infiltration of the fruit with the polyamines (PA) putrescine (PUT) or spermidine (SPD) also altered texture changes, but did not inhibit ethylene production. When the fruit were treated with Ca first and then with PA, cell wall-hound Ca concentrations increased 4-fold, but PA levels in the cell wall increased only slightly. When the fruit were treated with PA first and then with Ca, PA levels in the cell wall increased 3-fold, but Ca concentration increased only 2-fold. These results indicate that Ca and PA may he competing for the same binding sites in the cell wall and that the improvement of fruit quality during storage by these cations could involve strengthening of the cell wall.
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Claims 12
Claim · model-written summary
Calcium infiltration retarded apple texture changes at 0C.
- Taxon
- Malus domestica Borkh.
Malus domesticae0 - Material
- `Golden Delicious'e0
- Treatment
- calcium (Ca)e0
- Outcome
- texture changese0
- Direction
- retardede0
- Qualifier
- storage at 0Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prestorage infiltration of `Golden Delicious' apples (Malus domestica Borkh.) with calcium (Ca) retarded texture changes during storage at 0C”
Claim · model-written summary
Calcium infiltration inhibited fruit ethylene production at 20C.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Cae1
- Outcome
- ethylene production of the fruite0
- Direction
- inhibitede0
- Qualifier
- 20Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibited ethylene production of the fruit at 20C.”
e1“When the fruit were treated with Ca first”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Putrescine infiltration altered texture changes.
- Taxon
- ApplesMalus domesticat0
- Treatment
- putrescine (PUT)e0
- Outcome
- texture changese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infiltration of the fruit with the polyamines (PA) putrescine (PUT) or spermidine (SPD) also altered texture changes, but did not inhibit ethylene production.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Spermidine infiltration altered texture changes.
- Taxon
- ApplesMalus domesticat0
- Treatment
- spermidine (SPD)e0
- Outcome
- texture changese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infiltration of the fruit with the polyamines (PA) putrescine (PUT) or spermidine (SPD) also altered texture changes, but did not inhibit ethylene production.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Putrescine infiltration did not inhibit ethylene production.
- Taxon
- ApplesMalus domesticat0
- Treatment
- putrescine (PUT)e0
- Outcome
- ethylene productione0
- Direction
- did not inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infiltration of the fruit with the polyamines (PA) putrescine (PUT) or spermidine (SPD) also altered texture changes, but did not inhibit ethylene production.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Spermidine infiltration did not inhibit ethylene production.
- Taxon
- ApplesMalus domesticat0
- Treatment
- spermidine (SPD)e0
- Outcome
- ethylene productione0
- Direction
- did not inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infiltration of the fruit with the polyamines (PA) putrescine (PUT) or spermidine (SPD) also altered texture changes, but did not inhibit ethylene production.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Calcium followed by polyamines increased cell wall bound calcium fourfold.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Ca first and then with PAe0
- Outcome
- cell wall-hound Ca concentrationse0
- Direction
- increasede0
- Value
- 4-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the fruit were treated with Ca first and then with PA, cell wall-hound Ca concentrations increased 4-fold, but PA levels in the cell wall increased only slightly.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Calcium followed by polyamines increased cell wall polyamine levels only slightly.
- Taxon
- ApplesMalus domesticat0
- Treatment
- Ca first and then with PAe0
- Outcome
- PA levels in the cell walle0
- Direction
- increasede0
- Qualifier
- only slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the fruit were treated with Ca first and then with PA, cell wall-hound Ca concentrations increased 4-fold, but PA levels in the cell wall increased only slightly.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Polyamines followed by calcium increased cell wall polyamines threefold.
- Taxon
- ApplesMalus domesticat0
- Treatment
- PA first and then with Cae0
- Outcome
- PA levels in the cell walle0
- Direction
- increasede0
- Value
- 3-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the fruit were treated with PA first and then with Ca, PA levels in the cell wall increased 3-fold, but Ca concentration increased only 2-fold.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
Polyamines followed by calcium increased calcium concentration twofold.
- Taxon
- ApplesMalus domesticat0
- Treatment
- PA first and then with Cae0
- Outcome
- Ca concentratione0
- Direction
- increasede0
- Value
- 2-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the fruit were treated with PA first and then with Ca, PA levels in the cell wall increased 3-fold, but Ca concentration increased only 2-fold.”
t0“`Golden Delicious' Apples”
Claim · model-written summary
The authors suggest calcium and polyamines compete for cell wall binding sites.
- Taxon
- ApplesMalus domesticat0
- Compound
- Ca and PAe0
- Outcome
- competing for the same binding sites in the cell walle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ca and PA may he competing for the same binding sites in the cell wall”
t0“`Golden Delicious' Apples”
Claim · model-written summary
The authors suggest cell wall strengthening may improve stored fruit quality.
- Taxon
- ApplesMalus domesticat0
- Outcome
- improvement of fruit quality during storagee0
- Qualifier
- strengthening of the cell walle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the improvement of fruit quality during storage by these cations could involve strengthening of the cell wall”
t0“`Golden Delicious' Apples”
The same questions in other papers
calcium atom · quality: postharvest · Malus domestica (apple)Results differ
32 papers in the same direction as this paper · 5 in the opposite direction
- positive
- no effect
- no effect
34 papers more in this group
See all 38 papers →putrescine · physiology: hormones · Malus domestica (apple)Results agree
1 paper in the same direction as this paper
- no effect
calcium atom · cytology · Malus domestica (apple)Results agree
2 papers in the same direction as this paper
- positive
- positive
spermidine · physiology: hormones · Malus domestica (apple)Results agree
2 papers in the same direction as this paper
- negative
- no effect
calcium atom · physiology: hormones · Malus domestica (apple)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.