Abstract
SummaryThe effects of polyamines (putrescine, spermidine and spermine) at 1 and 10 mM on ethylene production, respiration and ripening of ‘Hayward’ kiwifruit [Actinidia deliciosa, (A. Chev.) C.F. Liang et A.R. Ferguson var. deliciosa, ‘Hayward’] were studied, over a single season, using vacuum, dipping and pressure infiltration. Vacuum or dipping infiltration of putrescine at 1 mM suppressed ethylene production, while pressure infiltration had no effect. Fruit treated with spermine had higher ethylene production than controls, whereas flesh firmness was not affected. Spermidine effects were intermediate. The effect of polyamines on fruit behaviour therefore depended both on the compound and on the method of infiltration. Pressure, alone, retarded fruit ripening, inhibited ethylene production and reduced respiration slightly. The effectiveness of pressure as a method for prolonging kiwifruit storage is discussed.
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
Vacuum infiltration of 1 mM putrescine suppressed ethylene production.
- Taxon
- kiwifruit
Actinidia deliciosat0 - Treatment
- Vacuume0
- Outcome
- ethylene productione0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vacuum or dipping infiltration of putrescine at 1 mM suppressed ethylene production”
t0“kiwifruit”
Claim · model-written summary
Dipping infiltration of 1 mM putrescine suppressed ethylene production.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- dipping infiltration of putrescine at 1 mMe0
- Outcome
- ethylene productione0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vacuum or dipping infiltration of putrescine at 1 mM suppressed ethylene production”
t0“kiwifruit”
Claim · model-written summary
Pressure infiltration of putrescine did not affect ethylene production.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- pressure infiltratione0
- Outcome
- ethylene productione0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vacuum or dipping infiltration of putrescine at 1 mM suppressed ethylene production, while pressure infiltration had no effect”
t0“kiwifruit”
Claim · model-written summary
Spermine increased ethylene production compared with controls.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- sperminee0
- Outcome
- ethylene productione0
- Direction
- highere0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with spermine had higher ethylene production than controls”
t0“kiwifruit”
Claim · model-written summary
Spermine did not affect flesh firmness.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- sperminee0
- Outcome
- flesh firmnesse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with spermine had higher ethylene production than controls, whereas flesh firmness was not affected”
t0“kiwifruit”
Claim · model-written summary
Spermidine had intermediate effects on fruit behavior.
- Taxon
- kiwifruitActinidia deliciosat0
- Outcome
- effects were intermediatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spermidine effects were intermediate”
t0“kiwifruit”
Claim · model-written summary
Pressure alone retarded fruit ripening.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- Pressure, alonee0
- Outcome
- fruit ripeninge0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pressure, alone, retarded fruit ripening”
t0“kiwifruit”
Claim · model-written summary
Pressure alone inhibited ethylene production.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- Pressure, alonee0
- Outcome
- ethylene productione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pressure, alone, retarded fruit ripening, inhibited ethylene production”
t0“kiwifruit”
Claim · model-written summary
Pressure alone slightly reduced respiration.
- Taxon
- kiwifruitActinidia deliciosat0
- Treatment
- Pressure, alonee0
- Outcome
- respiratione0
- Direction
- reducede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pressure, alone, retarded fruit ripening, inhibited ethylene production and reduced respiration slightly”
t0“kiwifruit”
The same questions in other papers
spermine · quality: postharvest · Actinidia deliciosa (kiwifruit)Positive and negative results
1 in the opposite direction
- positive
putrescine · physiology: hormones · Actinidia deliciosa (kiwifruit)Results agree
1 paper in the same direction as this paper
- positive
application · physiology: hormones · Actinidia deliciosa (kiwifruit)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.