Microbial influence on arsenic speciation: In search of the origins of arsenic resistance

K Hug, J Moreau, William Maher, X Morgan, M Stott, X Morgan

    Research output: A Conference proceeding or a Chapter in BookChapter

    Abstract

    Early life on Earth had to cope with heat, acidity and high dissolved metal(loid) Concentrations. Arsenic (As) is one metalloid enriched in geothermal waters. In order to survive toxic arsenic levels, microorganisms developed arsenic resistance mechanisms for arsenic species present at that time. Modern hot springs provide an analog to early Earth conditions in terms of temperature and dissolved arsenic concentrations. The nucleic acid data suggest a hyperthermophilic root of life, which supported the hypothesis of hot springs providing ideal conditions to investigate the evolution of microbial arsenic resistance. Geothermal pools in Wai-O-Tapu, New Zealand, with different temperature, pH and redox condition were studied for their arsenic speciation and microbial diversity. On an Eh-pH diagram all pools plotted ",ithin the arsenite (H3As03) stability field. Alongside arsenite, 'however, HPLC-ICPMS analyses also detected arsenate, organic arsenic and unknown arsenic species, suggesting active microbial transformation of As[III] via one or more arsenic resistance mechanisms.
    Original languageEnglish
    Title of host publicationUnderstanding the Geological and Medical Interface of Arsenic
    EditorsJ Ng, B Noller, R Naidu, J Bundschuh, P Bhattacharya
    Place of PublicationUK
    PublisherTaylor & Francis
    Pages458-460
    Number of pages3
    ISBN (Print)9780415637633
    Publication statusPublished - 2012

    Fingerprint

    arsenic
    arsenite
    thermal spring
    early Earth
    redox conditions
    nucleic acid
    arsenate
    acidity
    microorganism
    temperature
    diagram
    metal

    Cite this

    Hug, K., Moreau, J., Maher, W., Morgan, X., Stott, M., & Morgan, X. (2012). Microbial influence on arsenic speciation: In search of the origins of arsenic resistance. In J. Ng, B. Noller, R. Naidu, J. Bundschuh, & P. Bhattacharya (Eds.), Understanding the Geological and Medical Interface of Arsenic (pp. 458-460). UK: Taylor & Francis.
    Hug, K ; Moreau, J ; Maher, William ; Morgan, X ; Stott, M ; Morgan, X. / Microbial influence on arsenic speciation: In search of the origins of arsenic resistance. Understanding the Geological and Medical Interface of Arsenic. editor / J Ng ; B Noller ; R Naidu ; J Bundschuh ; P Bhattacharya. UK : Taylor & Francis, 2012. pp. 458-460
    @inbook{bc680cd9067f4258b8f83b8dfc9243ff,
    title = "Microbial influence on arsenic speciation: In search of the origins of arsenic resistance",
    abstract = "Early life on Earth had to cope with heat, acidity and high dissolved metal(loid) Concentrations. Arsenic (As) is one metalloid enriched in geothermal waters. In order to survive toxic arsenic levels, microorganisms developed arsenic resistance mechanisms for arsenic species present at that time. Modern hot springs provide an analog to early Earth conditions in terms of temperature and dissolved arsenic concentrations. The nucleic acid data suggest a hyperthermophilic root of life, which supported the hypothesis of hot springs providing ideal conditions to investigate the evolution of microbial arsenic resistance. Geothermal pools in Wai-O-Tapu, New Zealand, with different temperature, pH and redox condition were studied for their arsenic speciation and microbial diversity. On an Eh-pH diagram all pools plotted {"},ithin the arsenite (H3As03) stability field. Alongside arsenite, 'however, HPLC-ICPMS analyses also detected arsenate, organic arsenic and unknown arsenic species, suggesting active microbial transformation of As[III] via one or more arsenic resistance mechanisms.",
    author = "K Hug and J Moreau and William Maher and X Morgan and M Stott and X Morgan",
    year = "2012",
    language = "English",
    isbn = "9780415637633",
    pages = "458--460",
    editor = "J Ng and B Noller and R Naidu and J Bundschuh and P Bhattacharya",
    booktitle = "Understanding the Geological and Medical Interface of Arsenic",
    publisher = "Taylor & Francis",
    address = "United Kingdom",

    }

    Hug, K, Moreau, J, Maher, W, Morgan, X, Stott, M & Morgan, X 2012, Microbial influence on arsenic speciation: In search of the origins of arsenic resistance. in J Ng, B Noller, R Naidu, J Bundschuh & P Bhattacharya (eds), Understanding the Geological and Medical Interface of Arsenic. Taylor & Francis, UK, pp. 458-460.

    Microbial influence on arsenic speciation: In search of the origins of arsenic resistance. / Hug, K; Moreau, J; Maher, William; Morgan, X; Stott, M; Morgan, X.

    Understanding the Geological and Medical Interface of Arsenic. ed. / J Ng; B Noller; R Naidu; J Bundschuh; P Bhattacharya. UK : Taylor & Francis, 2012. p. 458-460.

    Research output: A Conference proceeding or a Chapter in BookChapter

    TY - CHAP

    T1 - Microbial influence on arsenic speciation: In search of the origins of arsenic resistance

    AU - Hug, K

    AU - Moreau, J

    AU - Maher, William

    AU - Morgan, X

    AU - Stott, M

    AU - Morgan, X

    PY - 2012

    Y1 - 2012

    N2 - Early life on Earth had to cope with heat, acidity and high dissolved metal(loid) Concentrations. Arsenic (As) is one metalloid enriched in geothermal waters. In order to survive toxic arsenic levels, microorganisms developed arsenic resistance mechanisms for arsenic species present at that time. Modern hot springs provide an analog to early Earth conditions in terms of temperature and dissolved arsenic concentrations. The nucleic acid data suggest a hyperthermophilic root of life, which supported the hypothesis of hot springs providing ideal conditions to investigate the evolution of microbial arsenic resistance. Geothermal pools in Wai-O-Tapu, New Zealand, with different temperature, pH and redox condition were studied for their arsenic speciation and microbial diversity. On an Eh-pH diagram all pools plotted ",ithin the arsenite (H3As03) stability field. Alongside arsenite, 'however, HPLC-ICPMS analyses also detected arsenate, organic arsenic and unknown arsenic species, suggesting active microbial transformation of As[III] via one or more arsenic resistance mechanisms.

    AB - Early life on Earth had to cope with heat, acidity and high dissolved metal(loid) Concentrations. Arsenic (As) is one metalloid enriched in geothermal waters. In order to survive toxic arsenic levels, microorganisms developed arsenic resistance mechanisms for arsenic species present at that time. Modern hot springs provide an analog to early Earth conditions in terms of temperature and dissolved arsenic concentrations. The nucleic acid data suggest a hyperthermophilic root of life, which supported the hypothesis of hot springs providing ideal conditions to investigate the evolution of microbial arsenic resistance. Geothermal pools in Wai-O-Tapu, New Zealand, with different temperature, pH and redox condition were studied for their arsenic speciation and microbial diversity. On an Eh-pH diagram all pools plotted ",ithin the arsenite (H3As03) stability field. Alongside arsenite, 'however, HPLC-ICPMS analyses also detected arsenate, organic arsenic and unknown arsenic species, suggesting active microbial transformation of As[III] via one or more arsenic resistance mechanisms.

    M3 - Chapter

    SN - 9780415637633

    SP - 458

    EP - 460

    BT - Understanding the Geological and Medical Interface of Arsenic

    A2 - Ng, J

    A2 - Noller, B

    A2 - Naidu, R

    A2 - Bundschuh, J

    A2 - Bhattacharya, P

    PB - Taylor & Francis

    CY - UK

    ER -

    Hug K, Moreau J, Maher W, Morgan X, Stott M, Morgan X. Microbial influence on arsenic speciation: In search of the origins of arsenic resistance. In Ng J, Noller B, Naidu R, Bundschuh J, Bhattacharya P, editors, Understanding the Geological and Medical Interface of Arsenic. UK: Taylor & Francis. 2012. p. 458-460