Abstract
Changes of the characteristics were investigated during storage of peach fruits following foliar application of 1-methylcyclopropene (1-MCP, 120 mg∙L-1 and 240 mg∙L-1), aminoetoxyvinylglcine (AVG, 75 mg∙L-1), and a combination of 1-MCP (240 mg∙L-1) and AVG (75 mg∙L-1) onto peach trees 3 weeks before harvesting. There were no significant differences in fruit characteristics including total soluble solids, acid content, and Hunter's value a between control and 1-MCP- or AVG-treated fruits of 'Madoka' peaches during ambient (25°C) and cold storage (12°C). However, we observed a delayed decrease in firmness, as well as inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits. Quantitative real-time PCR using RNA isolated from peach fruits revealed significantly inhibited expression of sugar accumulation-related genes (polygalacturonase, PpPG and PpPGL; and lipoxygenase, PpLOX), cell wall softening-related gene (pectin methylesterase, PpPME), ethylene biosynthesis-promoting genes (ACC synthase, PpACS1; and ACC oxidase, PpACO), and genes responsive to ethylene receptors (ethylene insensitive protein, PpEIN; and ethylene response sensor 1, PpERS1) in fruits treated with 1-MCP or AVG after harvest. This suggests that foliar application with 1-MCP or AVG can extend the shelf-life of peaches through inhibition of ethylene production and respiration. These results are informative for the development of technology necessary to extend shelf-life, which may ultimately lead to increased consumption and export to foreign countries of peaches produced in Korea.
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Claims 10
Claim · model-written summary
Total soluble solids, acid content, and Hunter’s a value did not differ significantly between treated and control fruit.
Verbatim
t0“‘Madoka’ Peaches”
e0“There were no significant differences in fruit characteristics including total soluble solids, acid content, and Hunter's value a between control and 1-MCP- or AVG-treated fruits of 'Madoka' peaches during ambient (25°C) and cold storage (12°C).”
Claim · model-written summary
Foliar 1-MCP delayed loss of peach firmness during storage versus untreated fruit.
- Taxon
- Peaches
Prunus persicat0 - Treatment
- 1-MCPe0
- Outcome
- firmnesse0
- Direction
- delayed decreasee0
- Comparator
- untreated peach fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“we observed a delayed decrease in firmness, as well as inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits”
Claim · model-written summary
Foliar AVG delayed loss of peach firmness during storage versus untreated fruit.
- Taxon
- PeachesPrunus persicat0
- Treatment
- AVGe0
- Outcome
- firmnesse0
- Direction
- delayed decreasee0
- Comparator
- untreated peach fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“we observed a delayed decrease in firmness, as well as inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits”
Claim · model-written summary
Combined AVG and 1-MCP delayed loss of peach firmness during storage versus untreated fruit.
- Taxon
- PeachesPrunus persicat0
- Treatment
- AVG combined with 1-MCPe0
- Outcome
- firmnesse0
- Direction
- delayed decreasee0
- Comparator
- untreated peach fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“we observed a delayed decrease in firmness, as well as inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits”
Claim · model-written summary
Foliar 1-MCP inhibited peach ethylene production and respiration during storage.
- Taxon
- PeachesPrunus persicat0
- Treatment
- 1-MCPe0
- Outcome
- ethylene production and respiratione0
- Direction
- inhibitione0
- Comparator
- untreated peach fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits”
Claim · model-written summary
Foliar AVG inhibited peach ethylene production and respiration during storage.
- Taxon
- PeachesPrunus persicat0
- Treatment
- AVGe0
- Outcome
- ethylene production and respiratione0
- Direction
- inhibitione0
- Comparator
- untreated peach fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits”
Claim · model-written summary
Combined AVG and 1-MCP inhibited peach ethylene production and respiration during storage.
- Taxon
- PeachesPrunus persicat0
- Treatment
- AVG combined with 1-MCPe0
- Outcome
- ethylene production and respiratione0
- Direction
- inhibitione0
- Comparator
- untreated peach fruitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“inhibition of ethylene production and respiration during storage of peach fruits after foliar application of 1-MCP, AVG, and AVG combined with 1-MCP in 2017 and in 2018 compared to untreated peach fruits”
Claim · model-written summary
1-MCP significantly inhibited expression of the listed sugar accumulation, cell wall, ethylene biosynthesis, and ethylene response genes in peach fruit.
- Taxon
- PeachesPrunus persicat0
- Organ / stage
- fruitse0
- Treatment
- 1-MCPe0
- Outcome
- expression of sugar accumulation-related genese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“significantly inhibited expression of sugar accumulation-related genes (polygalacturonase, PpPG and PpPGL; and lipoxygenase, PpLOX), cell wall softening-related gene (pectin methylesterase, PpPME), ethylene biosynthesis-promoting genes (ACC synthase, PpACS1; and ACC oxidase, PpACO), and genes responsive to ethylene receptors (ethylene insensitive protein, PpEIN; and ethylene response sensor 1, PpERS1) in fruits treated with 1-MCP or AVG after harvest”
Claim · model-written summary
AVG significantly inhibited expression of the listed sugar accumulation, cell wall, ethylene biosynthesis, and ethylene response genes in peach fruit.
- Taxon
- PeachesPrunus persicat0
- Organ / stage
- fruitse0
- Treatment
- AVGe0
- Outcome
- expression of sugar accumulation-related genese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“significantly inhibited expression of sugar accumulation-related genes (polygalacturonase, PpPG and PpPGL; and lipoxygenase, PpLOX), cell wall softening-related gene (pectin methylesterase, PpPME), ethylene biosynthesis-promoting genes (ACC synthase, PpACS1; and ACC oxidase, PpACO), and genes responsive to ethylene receptors (ethylene insensitive protein, PpEIN; and ethylene response sensor 1, PpERS1) in fruits treated with 1-MCP or AVG after harvest”
Claim · model-written summary
The authors infer that foliar 1-MCP or AVG can extend peach shelf life by inhibiting ethylene production and respiration.
- Taxon
- peachesPrunus persicae0
- Treatment
- 1-MCP or AVGe0
- Outcome
- shelf-lifee0
- Qualifier
- through inhibition of ethylene production and respiratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Madoka’ Peaches”
e0“foliar application with 1-MCP or AVG can extend the shelf-life of peaches through inhibition of ethylene production and respiration”
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