Citation
Zaharah Ramly, . and Zainon Mohd Ali, . and Hamid Lazan, . (1993) Chilling injury of papaya fruits: effects on ethylene metabolism. [Proceedings Paper]
Abstract
Storage of papayas Carica papaya L. cv. Exotica at the 5 yellow stage at 10 deg. C resulted in chilling injury of the fruits. The visual injury symptoms which developed upon transfer of the fruits to ambient 25 deg. C temperature were skin discolouration surface pitting and increased susceptability to fungal decay. The transfer of the papayas to 25 deg. C following storage at 10 deg. C for 10 days induced the increase in the level of aminocyclopropane carboxylic acid ACC and internal ethylene as well as in the activity of ACC synthase at a rate comparable with that of the non-chilled controls. However the peak level of the activity of ACC synthase and the concentration of internal ethylene in the chilled fruits was supressed whereas that of the ACC level was not as compared to the control fruits. The results appear to suggest that not only ACC synthase but also ethylene oxidase ethylene forming enzyme activity were suppressed in the chilled fruits
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Abstract
Storage of papayas Carica papaya L. cv. Exotica at the 5 yellow stage at 10 deg. C resulted in chilling injury of the fruits. The visual injury symptoms which developed upon transfer of the fruits to ambient 25 deg. C temperature were skin discolouration surface pitting and increased susceptability to fungal decay. The transfer of the papayas to 25 deg. C following storage at 10 deg. C for 10 days induced the increase in the level of aminocyclopropane carboxylic acid ACC and internal ethylene as well as in the activity of ACC synthase at a rate comparable with that of the non-chilled controls. However the peak level of the activity of ACC synthase and the concentration of internal ethylene in the chilled fruits was supressed whereas that of the ACC level was not as compared to the control fruits. The results appear to suggest that not only ACC synthase but also ethylene oxidase ethylene forming enzyme activity were suppressed in the chilled fruits
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Summaries En Ms |
| AGROVOC Term: | CARICA PAPAYA |
| AGROVOC Term: | ALMACENAMIENTO |
| AGROVOC Term: | ENFRIAMIENTO |
| AGROVOC Term: | TECNICAS ANALITICAS |
| AGROVOC Term: | ETILENO |
| AGROVOC Term: | DANOS POR LA HELADA |
| AGROVOC Term: | ACTIVIDAD ENZIMATICA |
| AGROVOC Term: | FRUTAS |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:26 |
| URI: | http://webagris.upm.edu.my/id/eprint/15447 |
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