Get 20M+ Full-Text Papers For Less Than $1.50/day. Subscribe now for You or Your Team.

Learn More →

Unusual lipids in the Caribbean sponges Amphimedon viridis and Desmapsamma anchorata.

Unusual lipids in the Caribbean sponges Amphimedon viridis and Desmapsamma anchorata. The phospholipid fatty acid composition of the Caribbean sponge Amphimedon viridis was studied, revealing the presence of the previously unreported substances 5,13-nonadecadienoic acid, 4-nonadecenoic acid, and 15-heneicosenoic acid. In A. viridis the very long-chain 5,9,23-nonacosatrienoic acid and 5,9,23-tricosatrienoic acid predominated in the mixture. The fatty acid composition of the sponge Desmapsamma anchorata was revised and 62 phospholipid fatty acids were characterized. The rare 8,13-octadecadienoic acid and 18-tetracosenoic acid were also characterized in the mixture. The two possible stereochemical isomers of 7-methyl-6-hexadecenoic acid, i.e., 7-methyl-6(Z)-hexadecenoic acid and the 7-methyl-6(E)-hexadecenoic acid were identified in both sponges, but D. anchorata had larger amounts. This is the first time that both stereoisomers have been identified in a sponge. The previously reported 7-methyl-8-hexadecenoic acid was not found in D. anchorata. Unprecedented aldehydes, comprising 15-and 17-docosenal, were also identified in the sponges. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of natural products Pubmed

Unusual lipids in the Caribbean sponges Amphimedon viridis and Desmapsamma anchorata.

Journal of natural products , Volume 57 (8): -1142 – Dec 28, 1994

Unusual lipids in the Caribbean sponges Amphimedon viridis and Desmapsamma anchorata.


Abstract

The phospholipid fatty acid composition of the Caribbean sponge Amphimedon viridis was studied, revealing the presence of the previously unreported substances 5,13-nonadecadienoic acid, 4-nonadecenoic acid, and 15-heneicosenoic acid. In A. viridis the very long-chain 5,9,23-nonacosatrienoic acid and 5,9,23-tricosatrienoic acid predominated in the mixture. The fatty acid composition of the sponge Desmapsamma anchorata was revised and 62 phospholipid fatty acids were characterized. The rare 8,13-octadecadienoic acid and 18-tetracosenoic acid were also characterized in the mixture. The two possible stereochemical isomers of 7-methyl-6-hexadecenoic acid, i.e., 7-methyl-6(Z)-hexadecenoic acid and the 7-methyl-6(E)-hexadecenoic acid were identified in both sponges, but D. anchorata had larger amounts. This is the first time that both stereoisomers have been identified in a sponge. The previously reported 7-methyl-8-hexadecenoic acid was not found in D. anchorata. Unprecedented aldehydes, comprising 15-and 17-docosenal, were also identified in the sponges.

Loading next page...
 
/lp/pubmed/unusual-lipids-in-the-caribbean-sponges-amphimedon-viridis-and-vHPVUKxpCQ

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

ISSN
0163-3864
DOI
10.1021/np50110a004
pmid
7964797

Abstract

The phospholipid fatty acid composition of the Caribbean sponge Amphimedon viridis was studied, revealing the presence of the previously unreported substances 5,13-nonadecadienoic acid, 4-nonadecenoic acid, and 15-heneicosenoic acid. In A. viridis the very long-chain 5,9,23-nonacosatrienoic acid and 5,9,23-tricosatrienoic acid predominated in the mixture. The fatty acid composition of the sponge Desmapsamma anchorata was revised and 62 phospholipid fatty acids were characterized. The rare 8,13-octadecadienoic acid and 18-tetracosenoic acid were also characterized in the mixture. The two possible stereochemical isomers of 7-methyl-6-hexadecenoic acid, i.e., 7-methyl-6(Z)-hexadecenoic acid and the 7-methyl-6(E)-hexadecenoic acid were identified in both sponges, but D. anchorata had larger amounts. This is the first time that both stereoisomers have been identified in a sponge. The previously reported 7-methyl-8-hexadecenoic acid was not found in D. anchorata. Unprecedented aldehydes, comprising 15-and 17-docosenal, were also identified in the sponges.

Journal

Journal of natural productsPubmed

Published: Dec 28, 1994

There are no references for this article.