Transgenic melon research. Technician with syringe collects ethylene gas from genetically engineered (transgenic) melon fruit. Ethylene gas emitted by the fruit is in this way monitored. These plants contain a gene that delays the ripening of melon fruit. Melon fruit normally ripens in 3-4 days and must be sold 4 days thereafter before it rots. Ethylene gas naturally emitted by the fruit causes its own ripening. The transplanted gene reduces ACC-oxidase and blocks this ethylene gas pathway of ripening. Transgenic melon fruit thus keep for 50 days without rotting, while fresh taste and smell of the fruit is maintained. Research at E.N.S.A.T. in Toulouse, France.
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