UNUSUAL STEROL COMPOSITION AND CLASSIFICATION OF THREE MARINE SPONGE FAMILIES

Autori

  • GILLES BARNATHAN
  • JEAN-MICHEL KORNPROBST

Abstract

Five sponge species belonging to the family Suberitidae are shown to contain 80-95 % of 5?-stanols, mainly cholestanol (51 - 74 %), confirming the data already known for this family. Three Ciocalypta species (Halichondriidae) contained four quite unusual 24-isopropyl and 24isopropenyl ?5 sterols, accounting for 70 - 80 % of the total sterol mixture, mainly 24isopropylcholesterol (41 - 59 %). Fourteen A-nor-sterols were found as major sterols (66 - 72 % of the total sterol fraction) in Stylissa carteri (family Dictyonellidae). These results confirm that sterols can provide useful chemotaxonomic data for the classification of these sponge families.

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Pubblicato

2018-05-22

Fascicolo

V. 68 (2004): Sponge Science in the new Millennium “Papers contributed to the VI International Sponge Conference“ Rapallo (Italy) 29th September - 5th October 2002

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