Novel methoxylated FA from the Caribbean sponge Spheciospongia cuspidifera
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Updated: Sep 14, 2026
A Fish-feeding Laboratory Bioassay to Assess the Antipredatory Activity of Secondary Metabolites from the Tissues of Marine Organisms
Published on: January 11, 2015
Néstor M Carballeira1, Johanna Alicea
1Department of Chemistry, University of Puerto Rico, San Juan. ncarball@upracd.upr.clu.edu
Abstract:
The delta6 monoenoic methoxylated FA (6Z)-2-methoxy-6-heptadecenoic acid and (6Z)-2-methoxy-6-octadecenoic acid were identified for the first time in nature in the phospholipids from the uncommon Caribbean sponge Spheciospongia cuspidifera. These findings expand the occurrence of A6 2-methoxylated FA to C17-C18 chain lengths and establish a new FA biosynthetic possibility for these marine organisms. The novel methoxylated FA also could have originated from the phospholipids of a bacterium in symbiosis with the sponge.
