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Characterization of surface n-alkanes and fatty acids of the epiphytic lichen Xanthoria parietina, its photobiont a green alga Trebouxia sp., and its mycobiont, from the Jerusalem hills
Year:
2003
Source of publication :
European Journal of Biochemistry
Authors :
Rotem, Joseph
;
.
Volume :
270
Co-Authors:
Torres, A., Dept. of Med. Chem./Natural Products, School of Pharmacy, Hebrew University of Jerusalem, PO Box 12065, Jerusalem 91120, Israel
Dor, I., Division of Environmental Sciences, Graduate School of Applied Science, Hebrew University of Jerusalem, Jerusalem, Israel
Rotem, J., Department of Plant Pathology, ARO, Ministry of Agriculture, Bet Dagan, Israel
Srebnik, M., Dept. of Med. Chem./Natural Products, School of Pharmacy, Hebrew University of Jerusalem, PO Box 12065, Jerusalem 91120, Israel, David R. Bloom Ctr. P., Hebrew University of Jerusalem, Jerusalem 91120, Israel
Dembitsky, V.M., Dept. of Med. Chem./Natural Products, School of Pharmacy, Hebrew University of Jerusalem, PO Box 12065, Jerusalem 91120, Israel
Facilitators :
From page:
2120
To page:
2125
(
Total pages:
6
)
Abstract:
Surface alkanes and fatty acids from the thalli of the lichen Xanthoria parietina, its photobiont Trebouxia sp., and its mycobiont were analysed by GC-MS. The green alga Trebouxia sp. synthesized mainly unsaturated fatty acids such as (Z,Z,Z)-9,12,15-18:3 (Z,Z)-9,12-18:2 and (Z)-9-18:1, and light alkanes C8-C15 (up to 83% of total n-alkanes). However, the mycobiont contained mainly saturated fatty acids such as hexadecanoic (16:0) and octadecanoic acid (18:0), and also very long-chain n-alkanes C22-C34. Dehydroabietic acid was found in both lichen and mycobiont. The occurrence of different amounts of n-alkanes and fatty acids in the photobionts and mycobionts of X. parietina was shown for the first time. Lichens collected from different locations in the Jerusalem hills contained n-alkanes ranging in concentration from 187 to 211 mg·(g dry wt)-1; n-alkane concentrations in the photobiont and mycobiont were 17-24 and 215-262 mg·(g dry wt)-1, respectively.
Note:
Related Files :
algae
fatty acids
Gas Chromatography
green alga
Hydrocarbons
Israel
Lipids
surface property
Synthesis
Show More
Related Content
More details
DOI :
10.1046/j.1432-1033.2003.03556.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18946
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:25
Scientific Publication
Characterization of surface n-alkanes and fatty acids of the epiphytic lichen Xanthoria parietina, its photobiont a green alga Trebouxia sp., and its mycobiont, from the Jerusalem hills
270
Torres, A., Dept. of Med. Chem./Natural Products, School of Pharmacy, Hebrew University of Jerusalem, PO Box 12065, Jerusalem 91120, Israel
Dor, I., Division of Environmental Sciences, Graduate School of Applied Science, Hebrew University of Jerusalem, Jerusalem, Israel
Rotem, J., Department of Plant Pathology, ARO, Ministry of Agriculture, Bet Dagan, Israel
Srebnik, M., Dept. of Med. Chem./Natural Products, School of Pharmacy, Hebrew University of Jerusalem, PO Box 12065, Jerusalem 91120, Israel, David R. Bloom Ctr. P., Hebrew University of Jerusalem, Jerusalem 91120, Israel
Dembitsky, V.M., Dept. of Med. Chem./Natural Products, School of Pharmacy, Hebrew University of Jerusalem, PO Box 12065, Jerusalem 91120, Israel
Characterization of surface n-alkanes and fatty acids of the epiphytic lichen Xanthoria parietina, its photobiont a green alga Trebouxia sp., and its mycobiont, from the Jerusalem hills
Surface alkanes and fatty acids from the thalli of the lichen Xanthoria parietina, its photobiont Trebouxia sp., and its mycobiont were analysed by GC-MS. The green alga Trebouxia sp. synthesized mainly unsaturated fatty acids such as (Z,Z,Z)-9,12,15-18:3 (Z,Z)-9,12-18:2 and (Z)-9-18:1, and light alkanes C8-C15 (up to 83% of total n-alkanes). However, the mycobiont contained mainly saturated fatty acids such as hexadecanoic (16:0) and octadecanoic acid (18:0), and also very long-chain n-alkanes C22-C34. Dehydroabietic acid was found in both lichen and mycobiont. The occurrence of different amounts of n-alkanes and fatty acids in the photobionts and mycobionts of X. parietina was shown for the first time. Lichens collected from different locations in the Jerusalem hills contained n-alkanes ranging in concentration from 187 to 211 mg·(g dry wt)-1; n-alkane concentrations in the photobiont and mycobiont were 17-24 and 215-262 mg·(g dry wt)-1, respectively.
Scientific Publication
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