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首页> 美国卫生研究院文献>Scientific Reports >Metabolomic profiling reveals deep chemical divergence between two morphotypes of the zoanthid Parazoanthus axinellae
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Metabolomic profiling reveals deep chemical divergence between two morphotypes of the zoanthid Parazoanthus axinellae

机译：代谢组学分析揭示了隐伏类动物副寄生虫的两个形态型之间的深化学差异

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Metabolomics has recently proven its usefulness as complementary tool to traditional morphological and genetic analyses for the classification of marine invertebrates. Among the metabolite-rich cnidarian order Zoantharia, Parazoanthus is a polyphyletic genus whose systematics and phylogeny remain controversial. Within this genus, one of the most studied species, Parazoanthus axinellae is prominent in rocky shallow waters of the Mediterranean Sea and the NE Atlantic Ocean. Although different morphotypes can easily be distinguished, only one species is recognized to date. Here, a metabolomic profiling approach has been used to assess the chemical diversity of two main Mediterranean morphotypes, the “slender” and “stocky” forms of P. axinellae. Targeted profiling of their major secondary metabolites revealed a significant chemical divergence between the morphotypes. While zoanthoxanthin alkaloids and ecdysteroids are abundant in both morphs, the “slender” morphotype is characterized by the presence of additional and bioactive 3,5-disubstituted hydantoin derivatives named parazoanthines. The absence of these specific compounds in the “stocky” morphotype was confirmed by spatial and temporal monitoring over an annual cycle. Moreover, specimens of the “slender” morphotype are also the only ones found as epibionts of several sponge species, particularly Cymbaxinella damicornis thus suggesting a putative ecological link.
机译：代谢组学最近证明了其作为传统形态学和遗传学分析的补充工具的有用性，用于海洋无脊椎动物的分类。在富含代谢产物的刺胞亚科的花椒属植物中，副花anthuantanthus是一个多系统属，其系统学和系统发育仍存争议。在这个属中，被研究最多的物种之一，伞形寄生虫在地中海和东北大西洋多岩石的浅水区中很突出。尽管可以轻松地区分不同的形态型，但迄今为止仅识别出一种。在这里，一种代谢组学谱分析方法已被用于评估两种主要地中海形态型的化学多样性，即无梭状疟原虫的“细长”和“矮胖”形式。他们主要的次要代谢产物的靶向分析揭示了形态型之间的显着化学差异。虽然zoanthoxanthin生物碱和蜕皮类固醇在这两种形态中均很丰富，但“细长”形态型的特征是存在称为副黄嘌呤的其他生物活性3,5-二取代乙内酰脲衍生物。通过一年周期的空间和时间监测，可以确认“矮胖”的形态没有这些特定的化合物。此外，“细长”形态型的标本也是唯一被发现为几种海绵物种，尤其是棉铃虫（Cymbaxinella damicornis）的表皮动物的标本，因此暗示了推测的生态联系。

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