Taonia lacheana is a very recent addition to the small Taonia genus. The chemical composition of the new species is characterized by the presence of aromadendrane sesquiterpenes [(+)-spathulenol, (+)-11-epispathulenol and(-)-7,1l-dihydroxyaromadendrane] and(-)-(R)-1-geranylgeranylglycerol. A related species from which the last compound had been previously isolated, misidentified as Dilophus fasciola and now recognized to be T. atomaria f. ciliata, has been re-investigated confirming the absence of aromadendrane derivatives. The two Mediterranean Taonia species differ sharply from the Canarian T. atomaria, that is known to elaborate meroditerpenoids.
SESQUITERPENES AND GERANYLGERANYLGLYCEROL FROM THE BROWN-ALGAE TAONIA-LACHEANA AND TAONIA-ATOMARIA F CILIATA - THEIR CHEMOTAXONOMIC SIGNIFICANCE
TRINGALI, Corrado;
1995-01-01
Abstract
Taonia lacheana is a very recent addition to the small Taonia genus. The chemical composition of the new species is characterized by the presence of aromadendrane sesquiterpenes [(+)-spathulenol, (+)-11-epispathulenol and(-)-7,1l-dihydroxyaromadendrane] and(-)-(R)-1-geranylgeranylglycerol. A related species from which the last compound had been previously isolated, misidentified as Dilophus fasciola and now recognized to be T. atomaria f. ciliata, has been re-investigated confirming the absence of aromadendrane derivatives. The two Mediterranean Taonia species differ sharply from the Canarian T. atomaria, that is known to elaborate meroditerpenoids.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
