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פותח על ידי קלירמאש פתרונות בע"מ -
Flavanone glycoside biosynthesis in Citrus: Chalcone synthase, UDP-glucose: flavanone-7-O-glucosyl-transferase and-rhamnosyl-transferase activities in cell-free extracts
Year:
1989
Authors :
לוינסון, אפרים
;
.
Volume :
91
Co-Authors:

Lothar Britsch, Yehuda Mazur, and Jonathan Gressel

Facilitators :
From page:
1323
To page:
1328
(
Total pages:
6
)
Abstract:

Previous indirect evidence suggested that the biosynthesis of flavonoids in Citrus may not proceed via the usual chalcone synthase reaction and that glycosylation occurs during chalcone formation and not afterward, as has been reported in other species. We detected chalcone-synthase and UDP-glucose:flavanone-7-O-glucosyl-transferase activities in cell-free extracts of Citrus. The glucosylated flavanone was further rhamnosylated when exogenous UDP-glucose and NADPH were added to the extract. Chalcone-synthase activity was detected in cell-free extracts derived from young leaves and fruits. Young fruits (2 millimeter diameter) had the highest chalcone synthase activity. UDP-glucose:flavanone-7-O-glucosyl-transferase activity was measured in cell-free extracts derived from young leaves and fruits of Citrus mitis and Citrus maxima. The highest UDP-glucose:flavanone-7-O-glucosyl-transferase activity was found in young C. maxima leaves. These data indicate that Citrus contains a flavonoid pathway similar to that studied in other species.

Note:
Related Files :
biosynthesis
Citrus
flavanone glycosides
flavonoids
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1104/pp.91.4.1323
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
38092
Last updated date:
02/03/2022 17:27
Creation date:
19/11/2018 15:41
You may also be interested in
Scientific Publication
Flavanone glycoside biosynthesis in Citrus: Chalcone synthase, UDP-glucose: flavanone-7-O-glucosyl-transferase and-rhamnosyl-transferase activities in cell-free extracts
91

Lothar Britsch, Yehuda Mazur, and Jonathan Gressel

Flavanone glycoside biosynthesis in Citrus: Chalcone synthase, UDP-glucose: flavanone-7-O-glucosyl-transferase and-rhamnosyl-transferase activities in cell-free extracts

Previous indirect evidence suggested that the biosynthesis of flavonoids in Citrus may not proceed via the usual chalcone synthase reaction and that glycosylation occurs during chalcone formation and not afterward, as has been reported in other species. We detected chalcone-synthase and UDP-glucose:flavanone-7-O-glucosyl-transferase activities in cell-free extracts of Citrus. The glucosylated flavanone was further rhamnosylated when exogenous UDP-glucose and NADPH were added to the extract. Chalcone-synthase activity was detected in cell-free extracts derived from young leaves and fruits. Young fruits (2 millimeter diameter) had the highest chalcone synthase activity. UDP-glucose:flavanone-7-O-glucosyl-transferase activity was measured in cell-free extracts derived from young leaves and fruits of Citrus mitis and Citrus maxima. The highest UDP-glucose:flavanone-7-O-glucosyl-transferase activity was found in young C. maxima leaves. These data indicate that Citrus contains a flavonoid pathway similar to that studied in other species.

Scientific Publication
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