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首页> 外文期刊>Marine biology >Proximity to competitors changes secondary metabolites of non-indigenous cup corals, Tubastraea spp., in the southwest Atlantic
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Proximity to competitors changes secondary metabolites of non-indigenous cup corals, Tubastraea spp., in the southwest Atlantic

机译：接近竞争对手改变了西南大西洋非本土杯形珊瑚Tubastraea spp。的次生代谢产物

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摘要

Competition for space changes species' distributions and community organization on tropical rocky shores, and the presence of secondary metabolites in the tissues of non-indigenous species may aid them in establishing and expanding their range through negative competitive interactions. The aim of this study was to describe the range of chemical substances produced by the non-indigenous cup corals Tubastraea coccinea and T. tagus-ensis and to test whether they varied in the field when the corals were placed in proximity to two local competitors. Cholest-5-en-3β-ol and 9-octadecanoic acid were two common secondary metabolites found in the tissues of Tubastraea. In the competition interaction experiment, necrosis was detected on the tissues of the coral Mussis-milia hispida, and this species induced variation in sterol, alkaloid, and fatty acid production in Tubastraea tissues. In contrast, a sponge overgrew Tubastraea colonies. These results indicate that chemical defense may contribute to the ability of these non-indigenous corals to invade native communities.
机译：空间争夺会改变热带多岩石海岸上物种的分布和社区组织，并且非土著物种组织中存在次生代谢产物可能会帮助他们通过负面竞争相互作用来建立和扩大其范围。这项研究的目的是描述非本土杯形珊瑚Tubastraea coccinea和T. tagus-ensis产生的化学物质的范围，并测试当珊瑚靠近两个当地竞争者时它们在田间是否发生变化。 Cholest-5-en-3β-ol和9-十八碳烯酸是在大叶杜鹃组织中发现的两种常见的次生代谢产物。在竞争相互作用实验中，在珊瑚Mussis-milia hispida的组织上检测到坏死，并且该物种诱导了大叶黄杨组织中固醇，生物碱和脂肪酸产生的变化。相比之下，海绵使Tubastraea菌落长满。这些结果表明，化学防御可能有助于这些非土著珊瑚入侵本地社区的能力。

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  • 来源
    《Marine biology》 |2012年第7期|1551-1559|共9页
  • 作者

    Bruno G. Lages; Beatriz G. Fleury; Ana M. C. Hovell; Claudia M. Rezende; Angelo C. Pinto; Joel C. Creed;

  • 作者单位

    Programa de Pos-Graduacao em Ecologia e Evolucao, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, UERJ, PHLC Sala 224, Avenida Sao Francisco Xavier 524, Rio de Janeiro, RJ 20559-900, Brazil;

    Departamento de Ecologia, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro-UERJ, PHLC Sala 220, Rua Sao Francisco Xavier 524, Rio de Janeiro, RJ 20559-900, Brazil;

    Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Bloco A, CT, Ilha do Fundao, Rio de Janeiro, RJ 21945-970, Brazil;

    Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Bloco A, CT, Ilha do Fundao, Rio de Janeiro, RJ 21945-970, Brazil;

    Departamento de Quimica Organica, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Bloco A, CT, Ilha do Fundao, Rio de Janeiro, RJ 21945-970, Brazil;

    Departamento de Ecologia, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro-UERJ, PHLC Sala 220, Rua Sao Francisco Xavier 524, Rio de Janeiro, RJ 20559-900, Brazil;

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