Effects of CO2 at 1-MCP treated tomato on the vine

H.P.J. de Wild

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    1 Citation (Scopus)

    Abstract

    Elevated CO2 can inhibit ethylene effects. The mechanism of this inhibition is not exactly known. It was investigated whether competition with ethylene at the receptor binding-site is involved. The receptor binding-site was blocked by 1-methylcyclopropene (1-MCP). In this case CO2 can not have an effect via ethylene perception. The influence of 10 kPa CO2 was studied at 1-MCP treated tomato on the vine (cv. `Tradiro`) during storage. The ethylene production rate of tomato on the vine at 20 °C was inhibited by 1-MCP and by CO2. After 1-MCP pre-treatment, CO2 still inhibited ethylene production. It can be concluded that the effect of CO2 on ethylene action is not (always) directed via inhibition of ethylene binding at the receptor site. It was also investigated whether CO2 can inhibit fruit abscission. After 5 days of storage, the required force to remove fruits from the vine was measured. The fruit removal force of control and of CO2 treated fruit decreased. However, treatment with 1-MCP prevented this decrease
    Original languageEnglish
    Pages (from-to)413-415
    JournalActa Horticulturae
    Volume600
    DOIs
    Publication statusPublished - 2003

    Keywords

    • tomatoes
    • controlled atmosphere storage
    • abscission
    • ethylene

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