Articles

EFFECTS OF CO2 AT 1-MCP TREATED TOMATO ON THE VINE

Article number
600_61
Pages
413 – 415
Language
English
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.

Publication
Authors
H.P.J. de Wild
Keywords
abscission, ethylene, Lycopersicon esculentum Mill., Pyrus communis L., storage, tomato on the vine
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