On the isolation of the new fatty acid 6,11-eicosadienoic (20:2) and related 6,11-dienoic acids from the sponge Euryspongia rosea.
The phospholipid fatty acids from the sponge Euryspongia rosea were studied revealing the presence of the new 6,11-eicosadienoic (20:2) acid and the rare 6,11-octadecadienoic acid (18:2). The isolation of these 6,11-dienoic acids reveals the presence of new biosynthetic possibilities in sponges and suggests the presence of an active delta 6 desaturase in E. rosea. Other acids isolated from E. rosea include 12-eicosenoic (20:1) and 17-tetracosenoic acid (24:1). The major phospholipids encountered in the sponge were phosphatidylethanolamine (PE), phosphatidylserine (PS), and phosphatidylcholine (PC).
Department of Chemistry, University of Puerto Rico, Rio Piedras 00931.
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Carballeira
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Maldonado
D000818:Animals; D005231:Fatty Acids, Unsaturated / Q000096:biosynthesis / Q000302:isolation & purification*; D013058:Mass Spectrometry; D010743:Phospholipids / Q000032:analysis; D011161:Porifera / Q000032:analysis* / Q000201:enzymology
D005231:Fatty Acids, Unsaturated; D010743:Phospholipids