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פותח על ידי קלירמאש פתרונות בע"מ -
Analysis of apocarotenoid volatiles during the development of Ficus carica fruits and characterization of carotenoid cleavage dioxygenase genes
Year:
2020
Source of publication :
Plant Science
Authors :
אבדאח, מוופק
;
.
איזיקסון, טל
;
.
זוהר, מתת
;
.
יאהיה, מוסעב
;
.
כבהא, אנאס
;
.
נוואדה, בגווט
;
.
Volume :
290
Co-Authors:

Shaltiel-Harpaz, L.

Bosamia, T.C.

Kedoshim, R.

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

In plants the oxidative cleavage of carotenoid substrates produces volatile apocarotenoids, including β-ionone, 6-methyl-5-hepten-2-ol, and α-ionone; these compounds are important in herbivore-plant communication. Combined chemical, biochemical, and molecular studies were conducted to evaluate the differential accumulation of carotenoids and volatile apocarotenoids during the development of pollinated and parthenocarpic fig fruits. Pollinated fig fruits showed less emission of apocarotenoid volatiles than the parthenocarpic figs, while in the case of carotenoid pigments, pollinated figs manifested higher accumulation. The apocarotenoids, 6-methyl-5-hepten-2-ol and β-cyclogeraniol, showed a marked increase after the two weeks of hand-pollination in pollinated and parthenocarpic figs; but afterwards these volatile levels decreased during further fruit development. In addition, we report a transcriptome-based identification and functional characterization of the carotenoid cleavage dioxygenase (FcCCD) genes. These genes were overexpressed in Escherichia coli strains previously engineered to produce different carotenoids. The recombinant FcCCD1A enzyme showed specificity for the 9,10 (9′,10′) double bond position of cyclic carotenoids to generate α-ionone and β-ionone, while FcCCD1B cleaved lycopene and an acyclic moiety of δ-carotene, producing 6-methyl-5-hepten-2-one. The qRT-PCR analysis of FcCCD genes revealed differential gene expression during fig fruit development. Our results suggest a role for the FcCCD1genes in apocarotenoid biosynthesis in fig fruits. © 2019 Elsevier B.V.

Note:
Related Files :
6-methyl-5-hepten-2-ol
Apocarotenoids
carotenoid cleavage dioxygenase 1
Ficus carica
Ficus carica
β-cyclogeraniol
β-ionone
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.plantsci.2019.110292
Article number:
110292
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
44275
Last updated date:
02/03/2022 17:27
Creation date:
22/10/2019 11:15
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Scientific Publication
Analysis of apocarotenoid volatiles during the development of Ficus carica fruits and characterization of carotenoid cleavage dioxygenase genes
290

Shaltiel-Harpaz, L.

Bosamia, T.C.

Kedoshim, R.

Analysis of apocarotenoid volatiles during the development of Ficus carica fruits and characterization of carotenoid cleavage dioxygenase genes

In plants the oxidative cleavage of carotenoid substrates produces volatile apocarotenoids, including β-ionone, 6-methyl-5-hepten-2-ol, and α-ionone; these compounds are important in herbivore-plant communication. Combined chemical, biochemical, and molecular studies were conducted to evaluate the differential accumulation of carotenoids and volatile apocarotenoids during the development of pollinated and parthenocarpic fig fruits. Pollinated fig fruits showed less emission of apocarotenoid volatiles than the parthenocarpic figs, while in the case of carotenoid pigments, pollinated figs manifested higher accumulation. The apocarotenoids, 6-methyl-5-hepten-2-ol and β-cyclogeraniol, showed a marked increase after the two weeks of hand-pollination in pollinated and parthenocarpic figs; but afterwards these volatile levels decreased during further fruit development. In addition, we report a transcriptome-based identification and functional characterization of the carotenoid cleavage dioxygenase (FcCCD) genes. These genes were overexpressed in Escherichia coli strains previously engineered to produce different carotenoids. The recombinant FcCCD1A enzyme showed specificity for the 9,10 (9′,10′) double bond position of cyclic carotenoids to generate α-ionone and β-ionone, while FcCCD1B cleaved lycopene and an acyclic moiety of δ-carotene, producing 6-methyl-5-hepten-2-one. The qRT-PCR analysis of FcCCD genes revealed differential gene expression during fig fruit development. Our results suggest a role for the FcCCD1genes in apocarotenoid biosynthesis in fig fruits. © 2019 Elsevier B.V.

Scientific Publication
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