232 research outputs found
L'oxydation par le dioxyde de sélénium de la coriacéolide, triterpène de stryphnodendron coriaceum
Doctorat en Sciencesinfo:eu-repo/semantics/nonPublishe
Isolation of 8-hydroxygeranioil-8-O-beta-D-glucoside, a probable intermediate in biosynthesis of iridoid monoterpenes, from defensive secretions of Plagiodera versicolora and Gastrophysa viridula (Coleoptera: Chrysomelidae)
SCOPUS: ar.jinfo:eu-repo/semantics/publishe
Cardiac glycosides in the defensive secretion of chrysomelid beetles: evidence for their production by the insects
SCOPUS: ar.jinfo:eu-repo/semantics/publishe
III International IUPAC Symposium on marine natural products: a survey
info:eu-repo/semantics/publishe
Chemical and biological aspects of sponge secondary metabolites
SCOPUS: cp.jinfo:eu-repo/semantics/publishe
Chemical defence in sponges
Many sponges are known to synthesize secondary metabolites showing a great diversity of structures and of biological activities. Further-more, the same sponge species, although sessile, exposed to predation and apparently devoid of mechanical or physical defence, suffer negligible predation and are seldom invaded by epizoic organisms. By putting these two observations together, a cause-effect relationship has been repeatedly suggested. Our purpose is to review the existing data and the arguments having led to this proposal. Recent structural studies and biological tests performed in our laboratory will serve to illustrate the complexity of the chemically mediated interactions of sponges with their environment. © 1986 IUPACSCOPUS: ar.jinfo:eu-repo/semantics/publishe
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