Secondary Metabolites from Echinoderms as Chemotaxonomic Markers
Secondary Metabolites from Echinoderms as Chemotaxonomic Markers
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DOI:
10.1007/978-3-642-48346-2_2
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发表时间:
1988
期刊:
影响因子:
--
通讯作者:
V. Stonik;G. B. Elyakov
中科院分区:
文献类型:
--
作者:
V. Stonik;G. B. Elyakov
The structures of some secondary metabolites and their distribution in the Phylum Echinodermata are described. Gangliosides, quinoid pigments and steryl sulfates in echinoderms are widespread, although these compounds are absent or rare in the majority of other marine invertebrates. There are numerous phylogenetic parallelisms dealing with directions of the biosynthesis oflow molecular weight natural products between starfishes and sea cucumbers, sea urchins and ophiuroids, sea lilies and starfishes and so on. They indicate a monophyletic origin of all echinoderms. At the same time such metabolites as triterpene glycosides, some gangliosides,, 19 (11) _ sterols, steroid oligoglycosides are linked to separate groups of these animals. Of particular interest among them as chemotaxonomic characters are triterpene glycosides from sea cucumbers, which have been utilized in a meaningful classification of Holothurioidea. The application of these and other secondary metabolites for taxonomic purposes is possible only by considering the cases of biochemical convergence and by invoking Vavilov's law of homologous series.