Abstract
Pre-climacteric `Gala' apple fruit treated with air (control) or 2 μmol·L –1 1-methylcyclopropene (MCP) were exposed to gamma irradiation at 0, 0.5, 1, or 1.5 kGy at 23 °C. Fruit were held at 20 °C for 3 weeks after treatment during which respiration rate, production of ethylene and other volatile compounds, fruit firmness, soluble solid content, titratable acidity, and irradiation injury were determined. MCP treatment reduced respiration and ethylene production and slowed loss of fruit firmness and titratable acidity. Irradiation induced increased respiration of MCP-treated fruit in a dosage-dependent fashion. Irradiation caused a decrease in ethylene production by control (non-MCP) fruit, and the magnitude of the decrease was dependent on irradiation dosage. Irradiation at 0.5, 1, and 1.5 kGy stimulated ethylene production of MCP-treated fruit for only 1 day after treatment. Irradiation induced internal browning and the injury severity increased with dosage. The severity and incidence of irradiation damage were higher in MCP-treated fruit than control fruit. The results indicate that ethylene is involved in mediating apple fruit responses to irradiation.
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Claims 10
Claim · model-written summary
MCP reduced respiration in Gala apple fruit.
- Taxon
- apple
Malus domesticat0 - Organ / stage
- fruite0
- Treatment
- MCP treatmente0
- Outcome
- respiratione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MCP treatment reduced respiration and ethylene production and slowed loss of fruit firmness and titratable acidity.”
t0“Apple Fruit”
Claim · model-written summary
MCP reduced ethylene production in Gala apple fruit.
- Taxon
- appleMalus domesticat0
- Organ / stage
- fruite0
- Treatment
- MCP treatmente0
- Outcome
- ethylene productione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MCP treatment reduced respiration and ethylene production and slowed loss of fruit firmness and titratable acidity.”
t0“Apple Fruit”
Claim · model-written summary
MCP slowed loss of apple fruit firmness and titratable acidity.
- Taxon
- appleMalus domesticat0
- Organ / stage
- fruite0
- Treatment
- MCP treatmente0
- Outcome
- fruit firmness and titratable aciditye0
- Direction
- slowed losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MCP treatment reduced respiration and ethylene production and slowed loss of fruit firmness and titratable acidity.”
t0“Apple Fruit”
Claim · model-written summary
Irradiation increased respiration of MCP-treated apple fruit with dose.
- Taxon
- appleMalus domesticat0
- Treatment
- Irradiatione0
- Outcome
- respiratione0
- Direction
- increasede0
- Qualifier
- in a dosage-dependent fashione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irradiation induced increased respiration of MCP-treated fruit in a dosage-dependent fashion.”
t0“Apple Fruit”
Claim · model-written summary
Irradiation decreased ethylene production of control apple fruit in a dose-dependent manner.
- Taxon
- appleMalus domesticat0
- Treatment
- Irradiatione0
- Outcome
- ethylene productione0
- Direction
- decreasee0
- Qualifier
- dependent on irradiation dosagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irradiation caused a decrease in ethylene production by control (non-MCP) fruit, and the magnitude of the decrease was dependent on irradiation dosage.”
t0“Apple Fruit”
Claim · model-written summary
Irradiation stimulated ethylene production of MCP-treated apple fruit for one day.
- Taxon
- appleMalus domesticat0
- Treatment
- Irradiation at 0.5, 1, and 1.5 kGye0
- Outcome
- ethylene productione0
- Direction
- stimulatede0
- Qualifier
- for only 1 day after treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irradiation at 0.5, 1, and 1.5 kGy stimulated ethylene production of MCP-treated fruit for only 1 day after treatment.”
t0“Apple Fruit”
Claim · model-written summary
Irradiation induced internal browning in apple fruit.
- Taxon
- appleMalus domesticat0
- Treatment
- Irradiatione0
- Outcome
- internal browninge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irradiation induced internal browning and the injury severity increased with dosage.”
t0“Apple Fruit”
Claim · model-written summary
Apple fruit irradiation injury severity increased with dose.
- Taxon
- appleMalus domesticat0
- Treatment
- Irradiatione0
- Outcome
- injury severitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irradiation induced internal browning and the injury severity increased with dosage.”
t0“Apple Fruit”
Claim · model-written summary
Irradiation damage severity and incidence were higher in MCP-treated apple fruit than controls.
- Taxon
- appleMalus domesticat0
- Treatment
- MCP-treatede0
- Outcome
- severity and incidence of irradiation damagee0
- Direction
- highere0
- Comparator
- control fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The severity and incidence of irradiation damage were higher in MCP-treated fruit than control fruit.”
t0“Apple Fruit”
Claim · model-written summary
The authors infer that ethylene mediates apple fruit responses to irradiation.
- Taxon
- appleMalus domesticae0
- Compound
- ethylenee0
- Outcome
- apple fruit responses to irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that ethylene is involved in mediating apple fruit responses to irradiation.”
The same questions in other papers
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See all 99 papers →radiation · disease · Malus domestica (apple)Results differ
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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.