Document Detail


Phospholipid fatty acids and sterols of two Cinachyrella sponges from the Saudi Arabian Red Sea: comparison with Cinachyrella species from other origins.
MedLine Citation:
PMID:  12798940     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Phospholipid class compositions, fatty acids and sterols of the sponges Cinachyrella alloclada and C. kükenthali from the Saudi Arabian Red Sea were studied and compared with previous results for other Cinachyrella spp. collected in Senegal (East Atlantic) and New Caledonia (West Pacific). More than 50 fatty acids were identified as methyl esters and N-acyl pyrrolidides in each phospholipid mixture by GC/MS. Six fatty acids not hitherto found in nature were identified, namely 17-methyltetracosanoic in C. kükenthali and 18-methyltetracosanoic, 18-methylpentacosanoic, 18-methylhexacosanoic, 18,24-dimethyl-hexacosanoic and 6-bromo-5,9-nonacosadienoic acids in C. alloclada. Approximately 20 Delta 5,9 unsaturated fatty acids were found, including three 6-brominated acids. The presence of bacteria was evidenced by the relatively high proportions of phosphatidylglycerol and high levels of branched short-chain fatty acids. A total of 20 free 3beta-hydroxysterols were found by GC/MS, including clerosterol in relatively high amounts and gorgosterol in low amounts. The latter sterol has not been reported to date in a sponge. Comparisons with Cinachyrella species from other geographical areas show marked differences for both phospholipid fatty acid and sterol compositions.
Authors:
Gilles Barnathan; Emilie Genin; Nambinina E Velosaotsy; Jean-Michel Kornprobst; Sultan Al-Lihaibi; Abdulmohsin Al-Sofyani; Rita Nongonierma
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology     Volume:  135     ISSN:  1096-4959     ISO Abbreviation:  Comp. Biochem. Physiol. B, Biochem. Mol. Biol.     Publication Date:  2003 Jun 
Date Detail:
Created Date:  2003-06-11     Completed Date:  2004-03-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9516061     Medline TA:  Comp Biochem Physiol B Biochem Mol Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  297-308     Citation Subset:  IM    
Affiliation:
ISOMer, SMAB group, Faculty of Pharmacy, University of Nantes, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 03, France. gilles.barnathan@isomer.univ-nantes.fr
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MeSH Terms
Descriptor/Qualifier:
Animals
Cholesterol / analogs & derivatives*,  analysis,  isolation & purification
Fatty Acids / analysis*,  chemistry
Indian Ocean
Phospholipids / chemistry*
Porifera / chemistry*
Saudi Arabia
Sterols / analysis*
Terpenes / analysis
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Phospholipids; 0/Sterols; 0/Terpenes; 29782-65-8/gorgosterol; 57-88-5/Cholesterol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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