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  • 1-Aminocyclopropane-1-carboxylic acid  (1)
  • 1
    ISSN: 1432-2048
    Keywords: 1-Aminocyclopropane-1-carboxylic acid ; Ethylene synthesis ; Petunia ; Protoplast, evacuolated (C2H4 synthesis) ; Vacuole (C2H4 synthesis)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Ethylene formation from 1-aminocycloprane-1-carboxylic acid (ACC) was studied in whole protoplasts, evaluolated protoplasts and isolated vacuoles from mesophyll cells of Petunia hybrida L. cv. Pink Magic. The re-formation of the large, central vacuole in evacuolated protoplasts and morphological characteristics of both types of protoplasts were examined by electron microscopy. Both the normal, whole protoplasts and vacuoles isolated from them produced ethylene from ACC at similar rates. Freshly-prepared evacuolated protoplasts had lost the capacity to produce ethylene. Re-formation of the central vacuole in these evacuolated protoplasts occurred between 14 to 17 h of incubation in the recovery medium and was followed by the development of ethyleneforming activity. Both these processes were inhibited by cycloheximide, indicating a requirement for new protein synthesis. Light stimulated the conversion of ACC to ethylene in both the regenerating, whole protoplasts and the evacuolated protoplasts that had re-formed the central vacuole.
    Type of Medium: Electronic Resource
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