Abstract
1-Methylcyclopropene (1-MCP) is an ethylene action inhibitor which prevents plant tissue from perceiving and responding to ethylene. It is generally effective in concentrations of 1 micromolar or less, and can retard many ripening processes that depend on ethylene for their induction. These processes include softening, color development, loss of titratable acidity, and increase in volatile compounds. The active compound is a gas (as is ethylene) and the treatment is given after harvest. The effect of 1-MCP on apricots, nectarines, peaches and plums has been investigated. Apricots responded to 1-MCP by slowing their softening, peel color change and loss of titratable acidity. However, ethylene production and respiration were not affected, and the treatment with 1-MCP enhanced internal flesh browning. Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity, with only minor inhibition of ethylene production. However after storage, fruit which had received a 1-MCP treatment developed more flesh disorders, particularly bleeding, than untreated fruit. Japanese plums responded positively to 1-MCP. Ethylene production was inhibited, as was softening, color change and loss of titratable acidity. There were fewer storage disorders, such as internal browning and gel breakdown in 1-MCP treated fruit than non-treated fruit. The use of this compound can help to elucidate the role of ethylene in the development of physiological storage disorders and in regulation of ethylene biosynthesis in different types of stone fruit.
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Claims 12
Claim · model-written summary
In apricots, 1-MCP slowed softening, peel color change and loss of titratable acidity.
- Taxon
- Apricots
Prunus armeniacae0 - Treatment
- 1-MCPe0
- Outcome
- softening, peel color change and loss of titratable aciditye0
- Direction
- slowinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apricots responded to 1-MCP by slowing their softening, peel color change and loss of titratable acidity”
Claim · model-written summary
In apricots, 1-MCP did not affect ethylene production or respiration.
- Taxon
- ApricotsPrunus armeniacae0
- Treatment
- 1-MCPe0
- Outcome
- ethylene production and respiratione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apricots responded to 1-MCP by slowing their softening, peel color change and loss of titratable acidity. However, ethylene production and respiration were not affected”
Claim · model-written summary
In apricots, 1-MCP enhanced internal flesh browning.
- Taxon
- ApricotsPrunus armeniacae0
- Treatment
- 1-MCPe0
- Outcome
- internal flesh browninge0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apricots responded to 1-MCP by slowing their softening, peel color change and loss of titratable acidity. However, ethylene production and respiration were not affected, and the treatment with 1-MCP enhanced internal flesh browning”
Claim · model-written summary
In peaches, 1-MCP slowed softening, color change and loss of titratable acidity.
- Taxon
- Peaches
Prunus persicae0 - Treatment
- 1-MCP treatmente0
- Outcome
- softening, color change and loss of titratable aciditye0
- Direction
- slowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity”
Claim · model-written summary
In nectarines, 1-MCP slowed softening, color change and loss of titratable acidity.
- Taxon
- nectarinesPrunus persica var. nucipersicae0
- Treatment
- 1-MCP treatmente0
- Outcome
- softening, color change and loss of titratable aciditye0
- Direction
- slowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity”
Claim · model-written summary
In peaches, 1-MCP caused only minor inhibition of ethylene production.
- Taxon
- PeachesPrunus persicae0
- Treatment
- 1-MCP treatmente0
- Outcome
- ethylene productione0
- Direction
- inhibitione0
- Qualifier
- only minore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity, with only minor inhibition of ethylene production”
Claim · model-written summary
In nectarines, 1-MCP caused only minor inhibition of ethylene production.
- Taxon
- nectarinesPrunus persica var. nucipersicae0
- Treatment
- 1-MCP treatmente0
- Outcome
- ethylene productione0
- Direction
- inhibitione0
- Qualifier
- only minore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity, with only minor inhibition of ethylene production”
Claim · model-written summary
After storage, 1-MCP-treated peaches developed more flesh disorders, particularly bleeding, than untreated fruit.
- Taxon
- PeachesPrunus persicae0
- Treatment
- 1-MCP treatmente0
- Outcome
- flesh disorders, particularly bleedinge0
- Direction
- moree0
- Qualifier
- after storagee0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity, with only minor inhibition of ethylene production. However after storage, fruit which had received a 1-MCP treatment developed more flesh disorders, particularly bleeding, than untreated fruit”
Claim · model-written summary
After storage, 1-MCP-treated nectarines developed more flesh disorders, particularly bleeding, than untreated fruit.
- Taxon
- nectarinesPrunus persica var. nucipersicae0
- Treatment
- 1-MCP treatmente0
- Outcome
- flesh disorders, particularly bleedinge0
- Direction
- moree0
- Qualifier
- after storagee0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peaches and nectarines responded to 1-MCP treatment in a similar manner to apricots by slower softening, color change and loss of titratable acidity, with only minor inhibition of ethylene production. However after storage, fruit which had received a 1-MCP treatment developed more flesh disorders, particularly bleeding, than untreated fruit”
Claim · model-written summary
In Japanese plums, 1-MCP inhibited ethylene production and softening.
- Taxon
- Japanese plums
Prunus salicinae0 - Treatment
- 1-MCPe0
- Outcome
- Ethylene productione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Japanese plums responded positively to 1-MCP. Ethylene production was inhibited, as was softening, color change and loss of titratable acidity”
Claim · model-written summary
In Japanese plums, 1-MCP inhibited softening, color change and loss of titratable acidity.
- Taxon
- Japanese plumsPrunus salicinae0
- Treatment
- 1-MCPe0
- Outcome
- softening, color change and loss of titratable aciditye0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Japanese plums responded positively to 1-MCP. Ethylene production was inhibited, as was softening, color change and loss of titratable acidity”
Claim · model-written summary
In Japanese plums, 1-MCP-treated fruit had fewer internal browning and gel breakdown disorders than untreated fruit.
- Taxon
- Japanese plumsPrunus salicinae0
- Treatment
- 1-MCP treated fruite0
- Outcome
- storage disorders, such as internal browning and gel breakdowne0
- Direction
- fewere0
- Comparator
- non-treated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Japanese plums responded positively to 1-MCP. Ethylene production was inhibited, as was softening, color change and loss of titratable acidity. There were fewer storage disorders, such as internal browning and gel breakdown in 1-MCP treated fruit than non-treated fruit”
The same questions in other papers
1-methylcyclopropene · quality: sugar starch · Prunus salicina (Japanese plum)Results differ
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1-methylcyclopropene · physiology: hormones · Prunus armeniaca (apricot)Results differ
10 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →1-methylcyclopropene · quality: sugar starch · Prunus armeniaca (apricot)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
1 paper more in this group
See all 5 papers →1-methylcyclopropene · disease · Prunus armeniaca (apricot)Positive and negative results
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →1-methylcyclopropene · quality: sugar starch · Prunus persica (peach)Positive and negative results
8 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
7 papers more in this group
See all 11 papers →1-methylcyclopropene · disease · Prunus salicina (Japanese plum)Results agree
1 paper in the same direction as this paper
- positive
1-methylcyclopropene · physiology: hormones · Prunus salicina (Japanese plum)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.