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Differential sensitivity to ethylene of the various ripening pathways of ethylene-suppressed cantaloupe melons

Flores, Francisco B. and Romojaro, Felix and Ben Amor, Mohamed and Pech, Jean-Claude and Latché, Alain Differential sensitivity to ethylene of the various ripening pathways of ethylene-suppressed cantaloupe melons. (2001) In: 4th International Conference on Postharvest Science, 23-31 Mar 2000, Jerusalem, Israel .

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Official URL: http://www.actahort.org/books/553/553_30.htm

Abstract

The availability of ethylene-suppressed transgenic melon fruit harboring an ACC oxidase gene in antisense orientation (Ayub et al., 1996) allowed to discriminate between ethylene-dependent and ethylene-independent ripening pathways. It has been observed that pulp coloration, accumulation of sugars, and loss of acidity are ethylene independent processes, whereas rind yellowing, flesh softening, development of the peduncular abscission (Guis et al., 1997), aroma production (Bauchot et al., 1998) and respiratory burst (not published) are ethylene dependent. The present study is aimed at characterizing the sensitivity to ethylene of softening of the flesh and yellowing of the rind by treating ethylene-suppressed melons with ethylene. The kinetics of changes have been followed under various ethylene concentrations and upon transfer to air. This has allowed an estimation of the threshold levels of ethylene required for initiating the processes and the saturating levels for full velocity. The effects of the cessation of the ethylene treatment have also been determined.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Published in : Acta Horticulturae, n° 553, pp. 151-153, ISSN : 0567-7572. Thanks to International Society for Horticultural Science editor. The definitive version is available at http://www.actahort.org/index.htm The original PDF of the article can be found at Acta Horticulturae website : http://www.actahort.org/books/553/index.htm
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Institut National de la Recherche Agronomique - INRA
Other partners > Consejo Superior de Investigaciones Científicas - CSIC (SPAIN)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
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Deposited By: Dabernat Séverine
Deposited On:16 Dec 2008 16:01

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