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首页> 外文期刊>ICES Journal of Marine Science >Assessing skeleton and microbiome responses of a calcareous sponge under thermal and pH stresses
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Assessing skeleton and microbiome responses of a calcareous sponge under thermal and pH stresses

机译：在热和pH胁迫下评估钙质海绵的骨架和微生物键反应

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摘要

Ocean higher temperature and acidity levels affect its carbonate chemistry, and calcifying organisms that depend on the calcium carbonatesaturation state (ΩCaCO_3) to build their skeleton may be vulnerable to these changes. Despite their important roles in the marine environment,little is known about the vulnerability of calcareous sponges under these stressors. We performed an acute short-term experiment(9 days) with thermal and pH stresses to explore their effects on the skeleton and microbiome of the calcareous sponge Sycettusa hastifera.We observed that sponge spicules showed no corrosion and no Mg/Ca ratio variation when exposed to stress conditions. However, the outermostspicules were smaller in low pH treatment, although these effects were often diminished when higher temperatures were also applied.In general, the sponges synthesized normally shaped spicules under stress conditions, but the proportion of deformed spicules increased significantlyin elevated temperature. In addition, we observed a stable host–microbiome association in which there is microbiome flexibility underthermal and pH stresses with a significantly increase in abundance of some associated bacteria. Our results suggest that S. hastifera haslow vulnerability under the future ocean conditions here designed, since it showed indications of resistance that could help them adapt andsurvive.
机译：海洋较高的温度和酸度水平影响其碳酸盐化学，并钙化依赖碳酸钙的生物体构建其骨架的饱和状态（ωcaco_3）可能很容易受到这些变化的影响。尽管在海洋环境中具有重要作用，但关于这些压力源在钙质海绵的脆弱性令人难以征服的几乎没有人。我们进行了急性短期实验（9天）热和pH胁迫，探讨它们对钙质海绵Sycettusa Hastifera的骨骼和微生物组的影响。我们观察到在暴露于应力条件时，海绵穗在暴露于胁迫条件下没有腐蚀性并且没有Mg / Ca比变异。但是，最外面在低pH处理中，穗状体较小，尽管当施加更高的温度时，这些效果通常会减少。通常，海绵在应力条件下合成常规形状的分子，但变形斑块的比例显着增加在升高的温度下。此外，我们观察到稳定的宿主微生物组合，其中有微生物组灵活性热和pH胁迫具有显着增加的一些相关细菌的丰富。我们的结果表明S. Hastifera有在这里未来的海洋状况下的低脆弱性，因为它表明抵抗的迹象，可以帮助他们适应和存活。

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  • 来源
    《ICES Journal of Marine Science》 |2021年第3期|855-866|共12页
  • 作者

    Barbara Ribeiro; Andre Padua; Adam Barno; Helena Villela; Gustavo Duarte; Andre Rossi; Flavio da Costa Fernandes; Raquel Peixoto; Michelle Klautau;

  • 作者单位

    Departamento de Zoologia Universidade Federal do Rio de Janeiro Instituto de Biologia Rio de Janeiro 21941902 Brazil;

    Departamento de Zoologia Universidade Federal do Rio de Janeiro Instituto de Biologia Rio de Janeiro 21941902 Brazil Departamento de Biologia Animal Universidade Federal Rural do Rio de Janeiro Instituto de Ciencias Biologicas e da Saude Seropedica23890000 Brazil;

    Departamento de Microbiologia Geral Universidade Federal do Rio de Janeiro Instituto de Microbiologia Professor Paulo de Goes Rio de Janeiro21941902 Brazil;

    Departamento de Microbiologia Geral Universidade Federal do Rio de Janeiro Instituto de Microbiologia Professor Paulo de Goes Rio de Janeiro21941902 Brazil;

    Departamento de Microbiologia Geral Universidade Federal do Rio de Janeiro Instituto de Microbiologia Professor Paulo de Goes Rio de Janeiro21941902 Brazil IMAM-AquaRio-Centro de Pesquisas do Aquario Marinho do Rio de Janeiro Rio de Janeiro 20220360 Brazil;

    CBPF-Centro Brasileiro de Pesquisas Fısicas Rio de Janeiro 21941590 Brazil;

    IEAPM-Instituto de Estudos do Mar Almirante Paulo Moreira Arraial do Cabo 28930000 Brazil;

    Departamento de Microbiologia Geral Universidade Federal do Rio de Janeiro Instituto de Microbiologia Professor Paulo de Goes Rio de Janeiro21941902 Brazil IMAM-AquaRio-Centro de Pesquisas do Aquario Marinho do Rio de Janeiro Rio de Janeiro 20220360 Brazil Genome Center University of California Davis CA 95616 USA;

    Departamento de Zoologia Universidade Federal do Rio de Janeiro Instituto de Biologia Rio de Janeiro 21941902 Brazil;

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  • 正文语种 eng
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  • 关键词

    bacterial community; calcifying organism; calcium carbonate; climate change; Porifera; Sycettusa hastifera;

    机译：细菌群落;钙有机体;碳酸钙;气候变化;Porifera;sycettusa hastifera;

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