Post harvest diseases fruits and vegetables - Xavier University ...

FREEDOM PALESTINE FREEDOM PALESTINE FREEDOM PALESTINE
98 Postharvest Diseases of Fruits and Vegetables
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Fig. 21. Ethylene evolution from normal Taculta 38' tomato fruit, at its
nature-green (A) and mature (B) stages of maturity, following inoculation with
Botrytis cinerea (A), or following treatment prior to inoculation (•) as compared
to uninfected fruit (•). (Reproduced from Barkai-Golan et al., 1989 with
permission of Blackwell Wissenschafts-Verlag GmbH).
Ethylene evolution was stimulated, not only in the normal ripening
tomato fruit, but also in the non-ripening nor mutant fruit, which did not
show any rise in the ethylene level when uninfected (Fig. 22). Thus,
fungal infection of the non-ripening mutant tomatoes induced thylene
synthesis by tissues which normally lack an active ripening system and
do not even respond to exogenic ethylene treatment (Tigchelaar et al.,
1978). Earlier and higher ethylene peaks were detected in fruits infected
with J5. cinerea than in those infected with G. candidum, corresponding
to the faster growth of the former (Barkai-Golan et al., 1989b).
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