Abstract
Cherry tomatoes harvested as bunches are sensitive to abscission during storage. Abscission can result from detachment of the fruit from the stem without the calyx or from the 'joint' abscission zone within the pedicel. We have shown that high concentrations of exogenous ethylene are required to trigger abscission and that application of methyl jasmonate can enhance the abscission as well as induction of tomato endo-glucanases. Abscission during storage can be significantly reduced by application of ethylene-action inhibitor, such as 1-methylcyclopropene (1-MCP) and auxin. Abscission through the joint was dominant during the winter season while bunch tomatoes grown in the summer suffered from abscission from the stem-end. This study focuses on the effects of temperature and relative humidity (RH) after harvest and before storage on fruit abscission. It is shown that exposure of bunches to 40°C for 60 min does not induce abscission. Moreover it is also shown that the effect of different environmental conditions after harvest and before storage can have a pronounced effect on type and level of abscission. Finally, it is clearly demonstrated that exposure of bunches to 30°C at low RH for 24-48h can lead to immediate receptacle abscission. These results are well correlated with desiccation as a major cause for postharvest abscission from the receptacle and can explain receptacle abscission of bunch tomatoes grown in hot seasons as well.
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Claims 10
Claim · model-written summary
High exogenous ethylene concentrations trigger tomato abscission.
Not reportedComparatorDirection
Verbatim
e0“high concentrations of exogenous ethylene are required to trigger abscission”
t0“TOMATOES”
Claim · model-written summary
Methyl jasmonate enhances tomato abscission.
Not reportedComparator
Verbatim
e0“application of methyl jasmonate can enhance the abscission”
t0“TOMATOES”
Claim · model-written summary
Methyl jasmonate induces tomato endo-glucanases.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of methyl jasmonatee0
- Gene
- tomato endo-glucanasese0
- Outcome
- induction of tomato endo-glucanasese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of methyl jasmonate can enhance the abscission as well as induction of tomato endo-glucanases”
Claim · model-written summary
An ethylene-action inhibitor significantly reduces tomato abscission during storage.
- Taxon
- TOMATOESt0
- Treatment
- ethylene-action inhibitore0
- Outcome
- Abscission during storagee0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Abscission during storage can be significantly reduced by application of ethylene-action inhibitor, such as 1-methylcyclopropene (1-MCP) and auxin.”
t0“TOMATOES”
Claim · model-written summary
Auxin significantly reduces tomato abscission during storage.
Not reportedComparator
Verbatim
e0“Abscission during storage can be significantly reduced by application of ethylene-action inhibitor, such as 1-methylcyclopropene (1-MCP) and auxin.”
t0“TOMATOES”
Claim · model-written summary
Joint abscission dominated in winter.
Verbatim
e0“Abscission through the joint was dominant during the winter season”
t0“TOMATOES”
Claim · model-written summary
Summer-grown bunch tomatoes suffered stem-end abscission.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- abscission from the stem-ende0
- Qualifier
- summere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bunch tomatoes grown in the summer suffered from abscission from the stem-end”
Claim · model-written summary
Exposure to 40°C for 60 min did not induce abscission.
Not reportedComparatorDirection
Verbatim
e0“exposure of bunches to 40°C for 60 min does not induce abscission”
t0“TOMATOES”
Claim · model-written summary
Exposure to 30°C at low humidity for 24-48h can cause immediate receptacle abscission.
- Taxon
- TOMATOESt0
- Treatment
- exposure of bunches to 30°C at low RH for 24-48he0
- Outcome
- immediate receptacle abscissione0
Not reportedComparatorDirection
Verbatim
e0“exposure of bunches to 30°C at low RH for 24-48h can lead to immediate receptacle abscission”
t0“TOMATOES”
Claim · model-written summary
Desiccation is implicated as a major cause of receptacle abscission.
Verbatim
e0“desiccation as a major cause for postharvest abscission from the receptacle”
t0“TOMATOES”
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