Diterpenoid feeding deterrents from the pacific green alga Pseudochlorodesmis furcellata
1988; Elsevier BV; Volume: 27; Issue: 4 Linguagem: Inglês
10.1016/0031-9422(88)80262-0
ISSN1873-3700
AutoresValerie J. Paul, Patrizia Ciminiello, William Fenical,
Tópico(s)Coral and Marine Ecosystems Studies
ResumoOur continuing research with tropical green algae of the family Udoteaceae has led to the isolation of two new diterpenoid metabolises from the uncalcified Pacific alga Pseudochlorodesmis furcellata. The isolation and structural determination of these secondary metabolises is presented here along with data on the susceptibility of this alga to herbivorous fishes on Guam. In addition, data on the feeding deterrent effects of the extract and major metabolite toward natural populations of herbivorous fishes and toward the herbivorous surgeonfish, Zebrasoma flavescens, and the rabbitfish, Siganus spinus, are presented. Results from these ecological assays support the proposal that chemical defenses effectively reduce grazing on P. furcellata by herbivorous fishes.
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