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פותח על ידי קלירמאש פתרונות בע"מ -
The relationship between preformed antifungal compounds, disease resistance of citrus fruits and various postharvest treatments 
Year:
1995
Authors :
בן-יהושע, שמשון
;
.
קים, ג'ונג ג'ין
;
.
רודוב, ויקטור
;
.
Volume :
Co-Authors:

Fang, D. Q.

Facilitators :
From page:
407
To page:
413
(
Total pages:
7
)
Abstract:

The effect of postharvest heat treatment, gibberellic acid (GA) or ethylene application on the decay of lemons was studied in relation to the presence of the preformed antifungal compound citral and antifungal activity in flavedo against Penicillium digitatum. Citral content decreased during storage in parallel with the decline of antifungal activity in flavedo and with the rise of fruit decay. Young mature green lemon (6 months after anthesis) demonstrating relatively high resistance against P. digitatum contained around 900 micro g citral/gfresh weight of flavedo at harvest whereas decay-susceptible old yellow fruit (11 months after anthesis) contained <500 micro g/g. Heat treatment (36 degrees C for 3 d) inhibited the decline of citral content in the peel and drastically reduced the % decay. After 4 months of storage the flavedo of heat-treated fruit contained about twice as much citral as fruit that did not receive heat treatment. GA dip (500 p.p.m. for 2 minutes) also inhibited decay development of stored fruit and slowed down the decline of citral content and of the antifungal activity in the flavedo. Ethylene treatment (25 p.p.m. for 3 d at 25 degrees ) markedly reduced the citral content and antifungal activity in the flavedo. It is concluded that the effect of heat treatment and plant growth regulators on postharvest citrus decay may be related to the modulation of endogenous disease resistance of fruit by influencing the changes of preformed antifungal materials such as citral.

Note:
Related Files :
chemical control
Control
Crops
ethylene
lemons
metabolism
Plant Diseases
Plant Pathology
Storage
Terpenoids
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
36601
Last updated date:
02/03/2022 17:27
Creation date:
14/08/2018 09:45
Scientific Publication
The relationship between preformed antifungal compounds, disease resistance of citrus fruits and various postharvest treatments 

Fang, D. Q.

The relationship between preformed antifungal compounds, disease resistance of citrus fruits and various postharvest treatments 

The effect of postharvest heat treatment, gibberellic acid (GA) or ethylene application on the decay of lemons was studied in relation to the presence of the preformed antifungal compound citral and antifungal activity in flavedo against Penicillium digitatum. Citral content decreased during storage in parallel with the decline of antifungal activity in flavedo and with the rise of fruit decay. Young mature green lemon (6 months after anthesis) demonstrating relatively high resistance against P. digitatum contained around 900 micro g citral/gfresh weight of flavedo at harvest whereas decay-susceptible old yellow fruit (11 months after anthesis) contained <500 micro g/g. Heat treatment (36 degrees C for 3 d) inhibited the decline of citral content in the peel and drastically reduced the % decay. After 4 months of storage the flavedo of heat-treated fruit contained about twice as much citral as fruit that did not receive heat treatment. GA dip (500 p.p.m. for 2 minutes) also inhibited decay development of stored fruit and slowed down the decline of citral content and of the antifungal activity in the flavedo. Ethylene treatment (25 p.p.m. for 3 d at 25 degrees ) markedly reduced the citral content and antifungal activity in the flavedo. It is concluded that the effect of heat treatment and plant growth regulators on postharvest citrus decay may be related to the modulation of endogenous disease resistance of fruit by influencing the changes of preformed antifungal materials such as citral.

Scientific Publication
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