Abstract
Respiration, C 2 H 4 production, lipid composition, and electrolyte leakage were monitored during ripening of two nonnetted muskmelon ( Cucumis melo L.) varieties differing in their storage life: `Clipper' (a long-storage-life variety) and `Jerac', which was used as a control. Respiration rates were comparable in both varieties. Although `Jerac' exhibited normal climacteric C 2 H 4 production, `Clipper' continued to produce significant amounts of C 2 H 4 until senescence. Electrolyte leakage increased with ripening and was always higher in `Jerac'. The loss of membrane integrity seems to be related to changes in the lipid composition due to a breakdown of phospholipids, an increase of sterol synthesis, and an increase in fatty acid saturation. On the contrary, in `Clipper', the absence of a major change in sterol and phospholipids content and the high level of fatty acid unsaturation suggest that membrane permeability is not greatly affected during ripening. This is consistent with the low loss of solutes measured and may delay senescence in `Clipper' fruit.
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Claims 8
Claim · model-written summary
Respiration rates were comparable in Clipper and Jerac.
- Taxon
- Cucumis melo L.
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Cucumis meloe0 - Material
- `Clipper'e2
- Outcome
- Respiration ratese1
- Direction
- comparablee1
- Comparator
- `Jerac'e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“Respiration rates were comparable in both varieties.”
e2“`Clipper' (a long-storage-life variety) and `Jerac', which was used as a control”
Claim · model-written summary
Jerac showed normal climacteric ethylene production.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Material
- `Jerac'e1
- Outcome
- normal climacteric C 2 H 4 productione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“`Jerac' exhibited normal climacteric C 2 H 4 production”
Claim · model-written summary
Clipper continued producing substantial ethylene until senescence.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Material
- `Clipper'e1
- Outcome
- produce significant amounts of C 2 H 4 until senescencee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“`Clipper' continued to produce significant amounts of C 2 H 4 until senescence”
Claim · model-written summary
Electrolyte leakage increased during ripening.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Organ / stage
- ripeninge1
- Outcome
- Electrolyte leakagee1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“Electrolyte leakage increased with ripening”
Claim · model-written summary
Electrolyte leakage was consistently higher in Jerac.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Material
- `Jerac'e1
- Outcome
- Electrolyte leakagee1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“Electrolyte leakage increased with ripening and was always higher in `Jerac'.”
Claim · model-written summary
Loss of membrane integrity appeared related to phospholipid breakdown, increased sterol synthesis and increased fatty acid saturation.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Outcome
- loss of membrane integritye1
- Qualifier
- changes in the lipid composition due to a breakdown of phospholipids, an increase of sterol synthesis, and an increase in fatty acid saturatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“The loss of membrane integrity seems to be related to changes in the lipid composition due to a breakdown of phospholipids, an increase of sterol synthesis, and an increase in fatty acid saturation.”
Claim · model-written summary
In Clipper, stable sterol and phospholipid content and fatty acid unsaturation suggested limited membrane permeability change during ripening.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Material
- `Clipper'e1
- Outcome
- membrane permeability is not greatly affected during ripeninge1
- Qualifier
- absence of a major change in sterol and phospholipids content and the high level of fatty acid unsaturatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“in `Clipper', the absence of a major change in sterol and phospholipids content and the high level of fatty acid unsaturation suggest that membrane permeability is not greatly affected during ripening”
Claim · model-written summary
Clipper showed low solute loss, which may delay senescence.
- Taxon
- Cucumis melo L.Cucumis meloe0
- Material
- `Clipper'e1
- Outcome
- delay senescencee1
- Qualifier
- low loss of solutes measurede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nonnetted muskmelon ( Cucumis melo L.) varieties”
e1“This is consistent with the low loss of solutes measured and may delay senescence in `Clipper' fruit.”