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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Umbelliferone, a phytoalexin associated with resistance of immature Marsh grapefruit to Penicillium digitatum
Year:
1999
Source of publication :
Phytochemistry
Authors :
אורנשטיין , ג'נטה
;
.
אפק, עוזי
;
.
בר-יוסף, משה
;
.
רודוב, ויקטור
;
.
Volume :
50
Co-Authors:
Afek, U., Dept. Postharvest Sci. Fresh Produce, Gilat Experiment Station, ARO, Volcani Center, Mobile Post Negev 2, 85-280, Israel
Orenstein, J., Dept. Postharvest Sci. Fresh Produce, Gilat Experiment Station, ARO, Volcani Center, Mobile Post Negev 2, 85-280, Israel
Carmeli, S., School of Chemistry, Tel Aviv Univ., Ramat Aviv, 69978, Tel Aviv, Israel
Rodov, V., Dept. Postharvest Sci. Fresh Produce, ARO, the Volcani Center, 50 250, Bet Dagan, Israel
Joseph, M.B., Department of Virology, ARO, the Volcani Center, 50 250, Bet Dagan, Israel
Facilitators :
From page:
1129
To page:
1132
(
Total pages:
4
)
Abstract:
A low concentration (2 μg-1 FW) of 7-hydroxycoumarin (umbelliferone) was found in albedo of non-inoculated mature yellow Marsh grapefruit (Citrus paradisi). The concentration of umbelliferone in albedo of immature green grapefruit (2 months before full maturity) was 17 μg g-1 FW. Four days following inoculation with Penicillium digitatum, the accumulation of umbelliferone in the albedo of mature and immature grapefruit was 28 and 250 μg g-1 FW, respectively. By that period, the infected area in the yellow fruit was as large as 230 mm2, as compared with 8 mm2 in the green fruit. The EC50 of umbelliferone to P. digitatum growth in vitro was 95 μg ml-1. Additionally, umbelliferone inhibited growth of several other pathogenic fungi in vitro. It is suggested that umbelliferone plays a role in the defense mechanisms of immature grapefruit against P. digitatum.
Note:
Related Files :
7- Hydroxycoumarin
article
citrus fruit
grapefruits
nonhuman
Penicillium
phytoalexin
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S0031-9422(98)00671-2
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24942
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:11
Scientific Publication
Umbelliferone, a phytoalexin associated with resistance of immature Marsh grapefruit to Penicillium digitatum
50
Afek, U., Dept. Postharvest Sci. Fresh Produce, Gilat Experiment Station, ARO, Volcani Center, Mobile Post Negev 2, 85-280, Israel
Orenstein, J., Dept. Postharvest Sci. Fresh Produce, Gilat Experiment Station, ARO, Volcani Center, Mobile Post Negev 2, 85-280, Israel
Carmeli, S., School of Chemistry, Tel Aviv Univ., Ramat Aviv, 69978, Tel Aviv, Israel
Rodov, V., Dept. Postharvest Sci. Fresh Produce, ARO, the Volcani Center, 50 250, Bet Dagan, Israel
Joseph, M.B., Department of Virology, ARO, the Volcani Center, 50 250, Bet Dagan, Israel
Umbelliferone, a phytoalexin associated with resistance of immature Marsh grapefruit to Penicillium digitatum
A low concentration (2 μg-1 FW) of 7-hydroxycoumarin (umbelliferone) was found in albedo of non-inoculated mature yellow Marsh grapefruit (Citrus paradisi). The concentration of umbelliferone in albedo of immature green grapefruit (2 months before full maturity) was 17 μg g-1 FW. Four days following inoculation with Penicillium digitatum, the accumulation of umbelliferone in the albedo of mature and immature grapefruit was 28 and 250 μg g-1 FW, respectively. By that period, the infected area in the yellow fruit was as large as 230 mm2, as compared with 8 mm2 in the green fruit. The EC50 of umbelliferone to P. digitatum growth in vitro was 95 μg ml-1. Additionally, umbelliferone inhibited growth of several other pathogenic fungi in vitro. It is suggested that umbelliferone plays a role in the defense mechanisms of immature grapefruit against P. digitatum.
Scientific Publication
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