Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 309288
Title Carbon dioxide and 1-MCP inhibit ethylene production and respiration of pear fruit by different mechanisms
Author(s) Wild, H.P.J. de; Woltering, E.J.; Peppelenbos, H.W.
Source Journal of Experimental Botany 50 (1999)335. - ISSN 0022-0957 - p. 837 - 844.
Department(s) Agrotechnological Research Institute
Publication type Refereed Article in a scientific journal
Publication year 1999
Abstract Ethylene production in relation to O2 partial pressure of whole pear fruit stored at 2 °C could be described by a Michaelis-Menten equation. This was indicated by the use of a gas exchange model. The maximum ethylene production rate was strongly inhibited while the K(mO2) value (1.25 kPa) was not affected by elevated CO2. Ethylene production was also inhibited by 1-MCP, an inhibitor of ethylene perception. The reduction in ethylene production by CO2 was similar for 1-MCP treated and untreated pears. Elevated CO2, therefore, must have had an influence on ethylene production other than through ethylene perception. A possible site of inhibition by CO2 is the conversion of ACC to ethylene. The O2 uptake rate in relation to O2 partial pressure of whole pear fruit could be described by a Michaelis-Menten equation. The O2 uptake rate was inhibited by elevated CO2 at a level similar to the inhibition of ethylene production. Again the K(mO2) value (0.68 kPa) was not affected by CO2. Using 1-MCP treatments it was shown that there was no direct effect of inhibited ethylene production on O2 uptake rate.
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