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首页> 外文期刊>Environmental Science & Technology >Siderophores in Cloud Waters and Potential Impact on Atmospheric Chemistry: Production by Microorganisms Isolated at the Puy de Dome Station
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Siderophores in Cloud Waters and Potential Impact on Atmospheric Chemistry: Production by Microorganisms Isolated at the Puy de Dome Station

机译：云水中的铁载体及其对大气化学的潜在影响：在Puy de Dome站分离出的微生物产生

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摘要

A total of 450 bacteria and yeast strains isolated from cloud waters sampled at the puy de Dome station in France (1465 m) were screened for their ability to produce siderophores. To achieve this, a high-throughput method in 96-well plates was adapted from the CAS (chrome azurol S) method. Notably, 42％ of the isolates were siderophore producers. This production was examined according to the phyla of the tested strains and the type of chelating functional groups (i.e., hydroxamate, catechol, and mixed type). The most active bacteria in the clouds belong to the γ- Proteobacteria class, among which the Pseudomonas genus is the most frequently encountered. γ-Proteobacteria are produced in the majority of mixed function siderophores, such as pyoverdines, which bear a photoactive group. Finally, siderophore production was shown to vary with the origin of the air masses. The organic speciation of iron remains largely unknown in warm clouds. Our results suggest that siderophores could partly chelate Fe(Ⅲ) in cloud waters and thus potentially impact the chemistry of the atmospheric aqueous phase.
机译：筛选了从法国Puy de Dome站（1465 m）采样的云水中分离出的总共450种细菌和酵母菌株，以检测其产生铁载体的能力。为此，从CAS（chrome azurol S）方法改编了96孔板的高通量方法。值得注意的是，其中42％的分离物是铁载体生产者。根据测试菌株的种类和螯合官能团的类型（即异羟肟酸酯，邻苯二酚和混合型）检查该产物。云中最活跃的细菌属于γ-变形杆菌属，其中最常遇到的是假单胞菌属。 γ-变形杆菌在大多数带有光活性基团的混合功能铁载体中产生，例如pyoverdines。最后，铁载体的产生显示出随着空气团的起源而变化。在温暖的云层中，铁的有机形态仍然未知。我们的结果表明，铁载体可能会部分螯合云水中的Fe（Ⅲ），从而潜在地影响大气水相的化学性质。

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  • 来源
    《Environmental Science & Technology》 |2016年第17期|9315-9323|共9页
  • 作者

    Virginie Vinatier; Nolwenn Wirgot; Muriel Joly; Martine Sancelme; Magali Abrantes; Laurent Deguillaume; Anne-Marie Delort;

  • 作者单位

    Institut de Chimie de Clermont-Ferrand, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), F-63171 Aubiere, France;

    Institut de Chimie de Clermont-Ferrand, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), F-63171 Aubiere, France;

    Institut de Chimie de Clermont-Ferrand, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), F-63171 Aubiere, France,L'Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Laboratoire de Meteorologie Physique, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6016, L'Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Laboratoire de Meteorologie Physique (LaMP/OPGC), BP80026, F-63177 Aubiere, France;

    Institut de Chimie de Clermont-Ferrand, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), F-63171 Aubiere, France;

    Institut de Chimie de Clermont-Ferrand, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), F-63171 Aubiere, France;

    L'Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Laboratoire de Meteorologie Physique, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6016, L'Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Laboratoire de Meteorologie Physique (LaMP/OPGC), BP80026, F-63177 Aubiere, France;

    Institut de Chimie de Clermont-Ferrand, Universite Clermont Auvergne, Universite Blaise Pascal, BP 10448, F-63000 Clermont-Ferrand, France,CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), F-63171 Aubiere, 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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