title: Defense in the aeolidoidean genus Phyllodesmium (Gastropoda).
abstract: The genus Phyllodesmium (Aeolidoidea, Gastropoda) comprises shell-less marine snails, whose defense strategies are not well investigated yet. Here we report results of the first chemical investigation of P. briareum, as well as a re-investigation of P. longicirrum and P. magnum. Briarane diterpenes were isolated from P. briareum, and their origin could be traced to its prey organism Briareum sp. (Octocorallia). Considerable enrichment of the soft coral secondary metabolites in the slug was shown. Re-investigation of P. magnum led to isolation of cembrane diterpenes, 2-phenylethylamide, and furano sesquiterpenes. Sequestration of chemicals seems to have influenced speciation and evolution of Phyllodesmium species. Structural similarity or dissimilarity of particular slug metabolites suggests a closer, or more distant relationship of the respective Phyllodesmium taxa.
authors.affiliation: Institute for Pharmaceutical Biology, University of Bonn, Nussallee 6, 53115, Bonn, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Bogdanov
authors.forename: Stefan
authors.initials: S
authors.lastname: Kehraus
authors.forename: Sabrina
authors.initials: S
authors.lastname: Bleidissel
authors.forename: Gela
authors.initials: G
authors.lastname: Preisfeld
authors.forename: Dorothee
authors.initials: D
authors.lastname: Schillo
authors.forename: Jörn
authors.initials: J
authors.lastname: Piel
authors.forename: Alexander O
authors.initials: AO
authors.lastname: Brachmann
authors.forename: Heike
authors.initials: H
authors.lastname: Wägele
authors.forename: Gabriele M
authors.initials: GM
authors.lastname: König
mesh_terms: D000818:Animals; D037421:Anthozoa / Q000737:chemistry; D005075:Biological Evolution; D049851:Gastropoda / Q000737:chemistry* / Q000502:physiology; D011235:Predatory Behavior; D012717:Sesquiterpenes / Q000378:metabolism*
chemical_list: D012717:Sesquiterpenes