Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage
‘Wujiuxiang’ (Pyrus bretschneideri R. × Pyrus communis L.) pears often suffer from superficial scald after long-term cold storage. In this study, harvested ‘Wujiuxiang’ pear fruits were fumigated with 1-MCP at concentrations of 0.5 μL/L and 1.0 μL/L and subsequently stored at low temperature (0 °C)....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Julius Kühn-Institut
2015-05-01
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| Series: | Journal of Applied Botany and Food Quality |
| Subjects: | |
| Online Access: | https://ojs.openagrar.de/index.php/JABFQ/article/view/3111 |
| _version_ | 1818613002318905344 |
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| author | Manman Gao Shuo Zhou Junfeng Guan Yingying Zhang |
| author_facet | Manman Gao Shuo Zhou Junfeng Guan Yingying Zhang |
| author_sort | Manman Gao |
| collection | DOAJ |
| description | ‘Wujiuxiang’ (Pyrus bretschneideri R. × Pyrus communis L.) pears often suffer from superficial scald after long-term cold storage. In this study, harvested ‘Wujiuxiang’ pear fruits were fumigated with 1-MCP at concentrations of 0.5 μL/L and 1.0 μL/L and subsequently stored at low temperature (0 °C). The superficial scald index; flesh firmness; total soluble solids (TSS) content; respiration and ethylene production rates; relative membrane permeability; concentrations of α-farnesene, conjugated trienols (CTols), and hydrogen peroxide (H2O2); and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and lipoxygenase (LOX) of the peel were investigated. The results showed that compared with control, 1-MCP reduced the index of superficial scald; maintained a higher firmness and a lower TSS content; inhibited the accumulation of H2O2, α-farnesene and conjugated trienols and the increase in cell membrane permeability; and maintained a higher activity of APX, SOD and CAT and a lower activity of LOX. These findings indicate that 1-MCP regulates the activities of H2O2-scavenging enzymes to inhibit the accumulation of H2O2 and thereby reduces cell membrane damage and inhibits the accumulation of conjugated trienols. Thus, 1-MCP could decrease the incidence of superficial scald in ‘Wujiuxiang’ pears. |
| first_indexed | 2024-12-16T15:55:11Z |
| format | Article |
| id | doaj.art-f7b717428d2f4c71823a174db9f84c88 |
| institution | Directory Open Access Journal |
| issn | 1613-9216 1439-040X |
| language | English |
| last_indexed | 2024-12-16T15:55:11Z |
| publishDate | 2015-05-01 |
| publisher | Julius Kühn-Institut |
| record_format | Article |
| series | Journal of Applied Botany and Food Quality |
| spelling | doaj.art-f7b717428d2f4c71823a174db9f84c882022-12-21T22:25:37ZengJulius Kühn-InstitutJournal of Applied Botany and Food Quality1613-92161439-040X2015-05-0188110.5073/JABFQ.2015.088.0143111Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storageManman GaoShuo ZhouJunfeng GuanYingying Zhang‘Wujiuxiang’ (Pyrus bretschneideri R. × Pyrus communis L.) pears often suffer from superficial scald after long-term cold storage. In this study, harvested ‘Wujiuxiang’ pear fruits were fumigated with 1-MCP at concentrations of 0.5 μL/L and 1.0 μL/L and subsequently stored at low temperature (0 °C). The superficial scald index; flesh firmness; total soluble solids (TSS) content; respiration and ethylene production rates; relative membrane permeability; concentrations of α-farnesene, conjugated trienols (CTols), and hydrogen peroxide (H2O2); and activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and lipoxygenase (LOX) of the peel were investigated. The results showed that compared with control, 1-MCP reduced the index of superficial scald; maintained a higher firmness and a lower TSS content; inhibited the accumulation of H2O2, α-farnesene and conjugated trienols and the increase in cell membrane permeability; and maintained a higher activity of APX, SOD and CAT and a lower activity of LOX. These findings indicate that 1-MCP regulates the activities of H2O2-scavenging enzymes to inhibit the accumulation of H2O2 and thereby reduces cell membrane damage and inhibits the accumulation of conjugated trienols. Thus, 1-MCP could decrease the incidence of superficial scald in ‘Wujiuxiang’ pears.https://ojs.openagrar.de/index.php/JABFQ/article/view/31111-methylcyclopropene‘Wujiuxiang’ pearpostharvest physiologysuperficial scald |
| spellingShingle | Manman Gao Shuo Zhou Junfeng Guan Yingying Zhang Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage Journal of Applied Botany and Food Quality 1-methylcyclopropene ‘Wujiuxiang’ pear postharvest physiology superficial scald |
| title | Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage |
| title_full | Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage |
| title_fullStr | Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage |
| title_full_unstemmed | Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage |
| title_short | Effects of 1-methylcyclopropene on superficial scald and related metabolism in ‘Wujiuxiang’ pears during cold storage |
| title_sort | effects of 1 methylcyclopropene on superficial scald and related metabolism in wujiuxiang pears during cold storage |
| topic | 1-methylcyclopropene ‘Wujiuxiang’ pear postharvest physiology superficial scald |
| url | https://ojs.openagrar.de/index.php/JABFQ/article/view/3111 |
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