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首页> 外文期刊>Environmental Science & Technology >Linking Diatom Sensitivity to Herbicides to Phytogeny: A Step Forward for Biomonitoring?
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Linking Diatom Sensitivity to Herbicides to Phytogeny: A Step Forward for Biomonitoring?

机译：将硅藻对除草剂的敏感性与植物遗传学联系起来：生物监测迈出的一步？

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摘要

Phylogeny has not yet been fully accepted in the field of ecotoxicology, despite studies demonstrating its potential for developing environmental biomonitoring tools, as it can provide an a priori assessment of the sensitivity of several indicator organisms. We therefore investigated the relationship between phylogeny and sensitivity to herbicides in freshwater diatom species. This study was performed on four photosystem II inhibitor herbicides (atrazine, terbutryn, diuron, and isoproturon) and 14 diatom species representative of Lake Geneva biofilm diversity. Using recent statistical tools provided by phylogenetics, we observed a strong phylogenetic signal for diatom sensitivity to herbicides. There was a major division in sensitivity to herbicides within the phylogenetic tree. The most sensitive species were mainly centrics and araphid diatoms (in this study, Thalassiosirales and Fragilariales), whereas the most resistant species were mainly pennates (in this study, Cymbellales, Naviculales, and Bacillariales). However, there was considerable variability in diatom sensitivity within the raphid clade, which could be explained by differences in trophic preferences (autotrophy or heterotrophy). These traits appeared to be complementary in explaining the differences in sensitivity observed at a refined phylogenetic level. Using phylogeny together with complementary traits, as trophic preferences, may help to predict the sensitivity of communities with a view to protecting their ecosystem.
机译：尽管有研究表明，系统发育学在开发环境生物监测工具方面具有潜力，但其在生态毒理学领域尚未被完全接受，因为它可以对几种指示生物的敏感性进行先验评估。因此，我们研究了系统发育与淡水硅藻物种对除草剂敏感性之间的关系。这项研究是针对代表日内瓦湖生物膜多样性的四种光系统II抑制剂除草剂（at去津，叔丁草，地隆和异丙隆）和14种硅藻物种进行的。使用系统发育学提供的最新统计工具，我们观察到了硅藻对除草剂敏感的强大系统发育信号。在系统发生树中，对除草剂的敏感性有很大的不同。最敏感的物种主要是中枢和阿拉菲硅藻（在本研究中为Thalassiosirales和Fragilariales），而抵抗力最强的物种主要为羽状（在本研究中为Cymbellales，Naviculales和Bacillariales）。但是，在蚜虫进化枝中，硅藻的敏感性存在很大差异，这可以用营养偏好（自养或异养）的差异来解释。这些特征似乎是互补的，可以解释在精细的系统发育水平上观察到的敏感性差异。将系统发育和互补性状作为营养偏好，可以帮助预测社区的敏感性，以保护其生态系统。

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  • 来源
    《Environmental Science & Technology》 |2014年第3期|1921-1930|共10页
  • 作者

    Floriane Larras; Francois Keck; Bernard Montuelle; Frederic Rimet; Agnes Bouchez;

  • 作者单位

    UMR Carrtel, Institut National de la Recherche Agronomique (INRA), F-74203 Thonon, France UMR Carrtel, Universite de Savoie, F-73011 Chambery, France;

    UMR Carrtel, Institut National de la Recherche Agronomique (INRA), F-74203 Thonon, France UMR Carrtel, Universite de Savoie, F-73011 Chambery, France;

    UMR Carrtel, Institut National de la Recherche Agronomique (INRA), F-74203 Thonon, France UMR Carrtel, Universite de Savoie, F-73011 Chambery, France;

    UMR Carrtel, Institut National de la Recherche Agronomique (INRA), F-74203 Thonon, France UMR Carrtel, Universite de Savoie, F-73011 Chambery, France;

    UMR Carrtel, Institut National de la Recherche Agronomique (INRA), F-74203 Thonon, France UMR Carrtel, Universite de Savoie, F-73011 Chambery, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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