Defense in the Aeolidoidean Genus Phyllodesmium (Gastropoda)
Defense in the Aeolidoidean Genus Phyllodesmium (Gastropoda)
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DOI：
10.1007/s10886-014-0496-z
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发表时间：
2014-09-01
影响因子：
2.3
通讯作者：
Koenig, Gabriele M.
中科院分区：
文献类型：
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作者：
Bogdanov, Alexander;Kehraus, Stefan;Koenig, Gabriele M.
叶状蜗牛属（Aeolidoidea，Gastropoda）由无壳海洋蜗牛组成，其防御策略尚未得到充分研究。在此，我们报告了对 P. briareum 的首次化学研究结果，以及对 P. longicirrum 和 P. magnum 的重新研究结果。 Briarane 二萜是从 P. briareum 中分离出来的，其起源可以追溯到其猎物生物 Briareum sp。 （八珊瑚）。蛞蝓中的软珊瑚次生代谢物显着富集。对 P. magnum 的重新研究导致分离出西松烷二萜、2-苯乙酰胺和呋喃倍半萜。化学物质的封存似乎影响了叶状藻物种的形成和进化。特定蛞蝓代谢物的结构相似性或不同性表明各自的叶状藻类群之间的关系更近或更远。
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.