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Zoekopdracht: instituut/afdeling: "FNWI: Zoological Museum Amsterdam ZMA" en publicatiejaar: "2007"

AuteursL.E. Becking, Y. Nakao, N.J. de Voogd, R.W.M. van Soest, N. Fusetani, S. Matsunaga
TitelPerplexing distribution of 3-alkylpyridines in haplosclerid sponges.
Boek/bron titelPorifera Research: Biodiversity, Innovation and Sustainability.
Auteurs/EditorsM.R, Custódio, M.R Hajdu Custódio, G Muricy, Lôbo-Hajdu
UitgeverMuseu Nacional, Rio de Janeiro
PlaatsRio de Janeiro Brazil
Jaar2007
Pagina's173-178
ISBN9788574270234
FaculteitFaculteit der Natuurwetenschappen, Wiskunde en Informatica
Instituut/afd.FNWI: Zoological Museum Amsterdam (ZMA)
TrefwoordenAmphitoxin; Chemotaxonomy; 3-alkylpyridines
SamenvattingAbstract: In this study we reviewed the natural product literature for the distribution of 3-alkylpyridines among sponge taxa. In parallel, we traced selected 3-alkylpyridines, amphitoxins, in three haplosclerid genera (Amphimedon, Callyspongia, Haliclona) in order to establish the utility of such compounds as genuine chemotaxonomic markers. We confirmed that this group of compounds had been almost solely extracted from sponges of the order Haplosclerida. Three groups of compounds within the 3-alkylpyridine derivatives were noteworthy, as they appear to be concentrated in restricted taxonomic units within the order Haplosclerida: 1) polymers, 2) cyclic dimers, and 3) bicyclic dimers. There was a concentration of the polymer amphitoxin in the families Niphatidae and Callyspongiidae of the suborder Haplosclerina, and more particularly in the genera Amphimedon and Callyspongia. Our experimental results reconfirmed the presence of amphitoxin in Callyspongia (Euplacella) biru, but we were unable to trace any amphitoxins or 3-alkylpyridines of any kind in Callyspongia (Callyspongia) truncata, Haliclona sp., and Amphimedon aff. queenslandica. Assuming that these classifications are correct, our results diminish the value of both amphitoxins and 3-alkylpyridines as monophyletic markers.
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