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A chemical view of the most ancient metazoa – biomarker chemotaxonomy of hexactinellid sponges

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Title: A chemical view of the most ancient metazoa – biomarker chemotaxonomy of hexactinellid sponges.
Name(s): Thiel, Volker, creator
Blumenberg, Martin, creator
Hefter, Jens, creator
Pape, Thomas, creator
Pomponi, Shirley A., creator
Reed, John K., creator
Reitner, Joachim, creator
Worheide, Gert, creator
Michaelis, Walter, creator
Type of Resource: text
Genre: Article
Issuance: single unit
Date Issued: 2002
Publisher: Springer-Verlag
Extent: 8 p.
Physical Description: pdf
Language(s): English
Identifier: 2709448 (digitool), FADT2709448 (IID), fau:5506 (fedora), 10.1007/s00114-001-0284-9 (doi)
Note(s): Hexactinellid sponges are often considered to be the most ancient metazoans. Lipid biomarkers from 23 species were studied for information on their phylogenetic properties, particularly their disputed relation to the two other sponge classes (Demospongiae, Calcarea). The most prominent lipid compounds in the Hexactinellida comprise C28 to C32 polyenoic fatty acids. Their structures parallel the unique patterns found in demosponge membrane fatty acids (‘demospongic acids’) and strongly support a close phylogenetic association of the Demospongiae and the Hexactinellida. Both taxa also show unusual mid-chain methylated fatty acids (C15–C25) and irregular C25- and C40-isoprenoid hydrocarbons, tracers for specific eubacteria and Archaea, respectively. These biomarkers indicate a similar, highly conservative symbiont community, although some shift in the abundance of the associated microbiota was observed. The lack of these features in calcareous sponges further contradicts the still common view that Calcarea and Demospongiae are more closely related to each other than either is to the Hexactinellida.
This manuscript is a version of an article with the original publication available at and may be cited as: Thiel, Volker, Martin Blumenberg, Jens Hefter, Thomas Pape, Shirley Pomponi, John Reed, Joachim Reitner, Gert Wörheide and Walter Michaelis (2002) A Chemical View of the Most Ancient Metazoa – Biomarker Chemotaxonomy of Hexactinellid Sponges, Naturwissenschaften 89:60–66 DOI: 10.1007/s00114-001-0284-9
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1490.
Subject(s): Sponges --Microbiology
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Restrictions on Access: ©2002 Springer-Verlag.
Host Institution: FAU