Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas
Purpose: The study of effects of 1-Methylcyclopropene (1-MCP) on ripening of bananas is still an important issue for commercial application of 1-MCP on bananas. Research Method: Mature green bananas were treated with ethylene only (100 µL L-1 for two consecutive days) and ethylene the same treatment...
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| Format: | Article |
| Language: | English |
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University of Birjand
2018-09-01
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| Series: | Journal of Horticulture and Postharvest Research |
| Subjects: | |
| Online Access: | http://jhpr.birjand.ac.ir/article_781_1d9f3b125ecb547c2aa34424456557bf.pdf |
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| author | Andreas Kleiber Margaret Sedgley Nancy Bagnato Farid Moradinezhad |
| author_facet | Andreas Kleiber Margaret Sedgley Nancy Bagnato Farid Moradinezhad |
| author_sort | Andreas Kleiber |
| collection | DOAJ |
| description | Purpose: The study of effects of 1-Methylcyclopropene (1-MCP) on ripening of bananas is still an important issue for commercial application of 1-MCP on bananas. Research Method: Mature green bananas were treated with ethylene only (100 µL L-1 for two consecutive days) and ethylene the same treatment followed by 1-MCP (300 nL L-1) for 24 h to evaluate the ethylene and 1-MCP effects on ethylene biosynthesis enzyme activities. Ethylene production of whole banana fruit, ACC synthase (ACS) and ACC oxidase (ACO) activities in the pulp and peel of samples were measured. Findings: The result showed that ethylene production rate by the control fruit was significantly greater than the ethylene production rate by the 1-MCP-treated fruit at days 4, 8 and 10. However, changes in ethylene production were similar in both control and 1-MCP-treated bananas. The banana peel and pulp show different patterns of ethylene production during ripening. At the onset of ripening pulp tissues showed higher levels of ACS, and lower levels of ACO activity than peel. Assays of ACO and ACS activities in ethylene-treated fruit showed that the peel had higher levels of ACO activity than the pulp. The ACO and ethylene production were inhibited by 1-MCP treatment whereas ACS increased following 1-MCP application. Research limitations: Evaluation of ACS and ACO activities during different seasons. Originality/value: Pulp and the peel of bananas respond differently to ethylene and 1-MCP treatment with a greater impact on peel than the pulp. The findings of this study allow 1-MCP to be used in a more commercially reliable manner. |
| first_indexed | 2024-12-17T02:08:35Z |
| format | Article |
| id | doaj.art-5093876127d946a48945838a005fe3b4 |
| institution | Directory Open Access Journal |
| issn | 2588-4883 2588-6169 |
| language | English |
| last_indexed | 2024-12-17T02:08:35Z |
| publishDate | 2018-09-01 |
| publisher | University of Birjand |
| record_format | Article |
| series | Journal of Horticulture and Postharvest Research |
| spelling | doaj.art-5093876127d946a48945838a005fe3b42022-12-21T22:07:37ZengUniversity of BirjandJournal of Horticulture and Postharvest Research2588-48832588-61692018-09-0112879610.22077/jhpr.2018.1125.1003781Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated BananasAndreas Kleiber0Margaret Sedgley1Nancy Bagnato2Farid Moradinezhad3Department of Horticultural Science, Adelaide University, AustraliaSchool of Environmental and Rural Science, University of New England, Armidale, New South Wales, AustraliaDepartment of Horticultural Science, Adelaide University, AustraliaDepartment of Horticultural Science, University of Birjand, Birjand, IranPurpose: The study of effects of 1-Methylcyclopropene (1-MCP) on ripening of bananas is still an important issue for commercial application of 1-MCP on bananas. Research Method: Mature green bananas were treated with ethylene only (100 µL L-1 for two consecutive days) and ethylene the same treatment followed by 1-MCP (300 nL L-1) for 24 h to evaluate the ethylene and 1-MCP effects on ethylene biosynthesis enzyme activities. Ethylene production of whole banana fruit, ACC synthase (ACS) and ACC oxidase (ACO) activities in the pulp and peel of samples were measured. Findings: The result showed that ethylene production rate by the control fruit was significantly greater than the ethylene production rate by the 1-MCP-treated fruit at days 4, 8 and 10. However, changes in ethylene production were similar in both control and 1-MCP-treated bananas. The banana peel and pulp show different patterns of ethylene production during ripening. At the onset of ripening pulp tissues showed higher levels of ACS, and lower levels of ACO activity than peel. Assays of ACO and ACS activities in ethylene-treated fruit showed that the peel had higher levels of ACO activity than the pulp. The ACO and ethylene production were inhibited by 1-MCP treatment whereas ACS increased following 1-MCP application. Research limitations: Evaluation of ACS and ACO activities during different seasons. Originality/value: Pulp and the peel of bananas respond differently to ethylene and 1-MCP treatment with a greater impact on peel than the pulp. The findings of this study allow 1-MCP to be used in a more commercially reliable manner.http://jhpr.birjand.ac.ir/article_781_1d9f3b125ecb547c2aa34424456557bf.pdfMusa acuminataACC synthaseACC oxidase1-Methylcyclopropene |
| spellingShingle | Andreas Kleiber Margaret Sedgley Nancy Bagnato Farid Moradinezhad Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas Journal of Horticulture and Postharvest Research Musa acuminata ACC synthase ACC oxidase 1-Methylcyclopropene |
| title | Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas |
| title_full | Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas |
| title_fullStr | Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas |
| title_full_unstemmed | Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas |
| title_short | Ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1-MCP-treated Bananas |
| title_sort | ethylene biosynthesis enzyme activities in the pulp and peel of partially ripe 1 mcp treated bananas |
| topic | Musa acuminata ACC synthase ACC oxidase 1-Methylcyclopropene |
| url | http://jhpr.birjand.ac.ir/article_781_1d9f3b125ecb547c2aa34424456557bf.pdf |
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