Toxicity of arsenic species to three freshwater organisms and biotransformation of inorganic arsenic by freshwater phytoplankton (Chlorella sp. CE-35)

M. Rahman, Ben Hogan, Christopher Doyle, Rick Krassoi, Mohammad Rahman, Ravi Naidu, Richard Lim, Bill MAHER, Christel Hassler

    Research output: Contribution to journalArticle

    27 Citations (Scopus)

    Abstract

    In the environment, arsenic(As)exists in a number of chemical species, and arsenite(AsIII) and arsenate (AsV) dominate in freshwater systems. Toxicity of As species to aquatic organisms is complicated by their interaction with chemicals in water such as phosphate that can influence the bioavailability and uptake of AsV. In the present study, the toxicities of AsIII, AsV and dimethyl arsinic acid(DMA) to three freshwater organisms representing three phylogenetic groups: a phytoplankton (Chlorella sp. strain CE-35), a floating macrophyte (Lemna disperma) and acladoceran grazer (Ceriodaphnia cf. dubia), were determined using acute and growth inhibition bioassays (EC50) at a range of total phosphate (TP) concentrations in OECD medium. The EC50 values of AsIII, AsV and DMA were 27 + 10,1.15 + 0.04 and 19+3 mgL-1 for Chlorella sp. CE-35;0.57+0.16,2.3+0.2 and 56 + 15mgL-1 for L. disperma, and 1.58+0.05, 1.72+0.01 and 5.9+0.1mgL-1 for C. cf. dubia, respectively. The results showed that AsIII was more toxic than AsV to L. disperma; however,AsV was more toxic than AsIII to Chlorella sp. CE-35. The toxicities of AsIII and AsV to C. cf. dubia were statistically similar (p>0.05). DMA was less toxic than iAs species to L. disperma and C. cf. dubia, but more toxic than AsIII to Chlorella sp. CE-35. The toxicity of AsV to Chlorella sp. CE-35 and L. disperma decreased with increasing TP concentrations in the growth medium. Phosphate concentrations did not influence the toxicity of AsIII to eitherorganism. Chlorella sp. CE-35 showed the ability to reduce AsV to AsIII, indicating a substantial influence of phytoplankton on As biogeochemistry in freshwater aquatic systems.
    Original languageEnglish
    Pages (from-to)126-135
    Number of pages10
    JournalEcotoxicology and Environmental Safety
    Volume106
    DOIs
    Publication statusPublished - 2014

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    Chlorella
    Phytoplankton
    Arsenic
    Biotransformation
    Fresh Water
    Toxicity
    Poisons
    Cacodylic Acid
    Phosphates
    Acids
    Biogeochemistry
    Aquatic organisms
    Bioassay
    Aquatic Organisms
    Growth
    Biological Assay
    Biological Availability
    Water

    Cite this

    Rahman, M. ; Hogan, Ben ; Doyle, Christopher ; Krassoi, Rick ; Rahman, Mohammad ; Naidu, Ravi ; Lim, Richard ; MAHER, Bill ; Hassler, Christel. / Toxicity of arsenic species to three freshwater organisms and biotransformation of inorganic arsenic by freshwater phytoplankton (Chlorella sp. CE-35). In: Ecotoxicology and Environmental Safety. 2014 ; Vol. 106. pp. 126-135.
    @article{e3a65849ba224efcace88d91f9b93bd3,
    title = "Toxicity of arsenic species to three freshwater organisms and biotransformation of inorganic arsenic by freshwater phytoplankton (Chlorella sp. CE-35)",
    abstract = "In the environment, arsenic(As)exists in a number of chemical species, and arsenite(AsIII) and arsenate (AsV) dominate in freshwater systems. Toxicity of As species to aquatic organisms is complicated by their interaction with chemicals in water such as phosphate that can influence the bioavailability and uptake of AsV. In the present study, the toxicities of AsIII, AsV and dimethyl arsinic acid(DMA) to three freshwater organisms representing three phylogenetic groups: a phytoplankton (Chlorella sp. strain CE-35), a floating macrophyte (Lemna disperma) and acladoceran grazer (Ceriodaphnia cf. dubia), were determined using acute and growth inhibition bioassays (EC50) at a range of total phosphate (TP) concentrations in OECD medium. The EC50 values of AsIII, AsV and DMA were 27 + 10,1.15 + 0.04 and 19+3 mgL-1 for Chlorella sp. CE-35;0.57+0.16,2.3+0.2 and 56 + 15mgL-1 for L. disperma, and 1.58+0.05, 1.72+0.01 and 5.9+0.1mgL-1 for C. cf. dubia, respectively. The results showed that AsIII was more toxic than AsV to L. disperma; however,AsV was more toxic than AsIII to Chlorella sp. CE-35. The toxicities of AsIII and AsV to C. cf. dubia were statistically similar (p>0.05). DMA was less toxic than iAs species to L. disperma and C. cf. dubia, but more toxic than AsIII to Chlorella sp. CE-35. The toxicity of AsV to Chlorella sp. CE-35 and L. disperma decreased with increasing TP concentrations in the growth medium. Phosphate concentrations did not influence the toxicity of AsIII to eitherorganism. Chlorella sp. CE-35 showed the ability to reduce AsV to AsIII, indicating a substantial influence of phytoplankton on As biogeochemistry in freshwater aquatic systems.",
    keywords = "Arsenic species, Toxicity, Biotransformation, Freshwaterorganisms, Chlorella sp.",
    author = "M. Rahman and Ben Hogan and Christopher Doyle and Rick Krassoi and Mohammad Rahman and Ravi Naidu and Richard Lim and Bill MAHER and Christel Hassler",
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    Toxicity of arsenic species to three freshwater organisms and biotransformation of inorganic arsenic by freshwater phytoplankton (Chlorella sp. CE-35). / Rahman, M.; Hogan, Ben; Doyle, Christopher; Krassoi, Rick; Rahman, Mohammad; Naidu, Ravi; Lim, Richard; MAHER, Bill; Hassler, Christel.

    In: Ecotoxicology and Environmental Safety, Vol. 106, 2014, p. 126-135.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Toxicity of arsenic species to three freshwater organisms and biotransformation of inorganic arsenic by freshwater phytoplankton (Chlorella sp. CE-35)

    AU - Rahman, M.

    AU - Hogan, Ben

    AU - Doyle, Christopher

    AU - Krassoi, Rick

    AU - Rahman, Mohammad

    AU - Naidu, Ravi

    AU - Lim, Richard

    AU - MAHER, Bill

    AU - Hassler, Christel

    PY - 2014

    Y1 - 2014

    N2 - In the environment, arsenic(As)exists in a number of chemical species, and arsenite(AsIII) and arsenate (AsV) dominate in freshwater systems. Toxicity of As species to aquatic organisms is complicated by their interaction with chemicals in water such as phosphate that can influence the bioavailability and uptake of AsV. In the present study, the toxicities of AsIII, AsV and dimethyl arsinic acid(DMA) to three freshwater organisms representing three phylogenetic groups: a phytoplankton (Chlorella sp. strain CE-35), a floating macrophyte (Lemna disperma) and acladoceran grazer (Ceriodaphnia cf. dubia), were determined using acute and growth inhibition bioassays (EC50) at a range of total phosphate (TP) concentrations in OECD medium. The EC50 values of AsIII, AsV and DMA were 27 + 10,1.15 + 0.04 and 19+3 mgL-1 for Chlorella sp. CE-35;0.57+0.16,2.3+0.2 and 56 + 15mgL-1 for L. disperma, and 1.58+0.05, 1.72+0.01 and 5.9+0.1mgL-1 for C. cf. dubia, respectively. The results showed that AsIII was more toxic than AsV to L. disperma; however,AsV was more toxic than AsIII to Chlorella sp. CE-35. The toxicities of AsIII and AsV to C. cf. dubia were statistically similar (p>0.05). DMA was less toxic than iAs species to L. disperma and C. cf. dubia, but more toxic than AsIII to Chlorella sp. CE-35. The toxicity of AsV to Chlorella sp. CE-35 and L. disperma decreased with increasing TP concentrations in the growth medium. Phosphate concentrations did not influence the toxicity of AsIII to eitherorganism. Chlorella sp. CE-35 showed the ability to reduce AsV to AsIII, indicating a substantial influence of phytoplankton on As biogeochemistry in freshwater aquatic systems.

    AB - In the environment, arsenic(As)exists in a number of chemical species, and arsenite(AsIII) and arsenate (AsV) dominate in freshwater systems. Toxicity of As species to aquatic organisms is complicated by their interaction with chemicals in water such as phosphate that can influence the bioavailability and uptake of AsV. In the present study, the toxicities of AsIII, AsV and dimethyl arsinic acid(DMA) to three freshwater organisms representing three phylogenetic groups: a phytoplankton (Chlorella sp. strain CE-35), a floating macrophyte (Lemna disperma) and acladoceran grazer (Ceriodaphnia cf. dubia), were determined using acute and growth inhibition bioassays (EC50) at a range of total phosphate (TP) concentrations in OECD medium. The EC50 values of AsIII, AsV and DMA were 27 + 10,1.15 + 0.04 and 19+3 mgL-1 for Chlorella sp. CE-35;0.57+0.16,2.3+0.2 and 56 + 15mgL-1 for L. disperma, and 1.58+0.05, 1.72+0.01 and 5.9+0.1mgL-1 for C. cf. dubia, respectively. The results showed that AsIII was more toxic than AsV to L. disperma; however,AsV was more toxic than AsIII to Chlorella sp. CE-35. The toxicities of AsIII and AsV to C. cf. dubia were statistically similar (p>0.05). DMA was less toxic than iAs species to L. disperma and C. cf. dubia, but more toxic than AsIII to Chlorella sp. CE-35. The toxicity of AsV to Chlorella sp. CE-35 and L. disperma decreased with increasing TP concentrations in the growth medium. Phosphate concentrations did not influence the toxicity of AsIII to eitherorganism. Chlorella sp. CE-35 showed the ability to reduce AsV to AsIII, indicating a substantial influence of phytoplankton on As biogeochemistry in freshwater aquatic systems.

    KW - Arsenic species

    KW - Toxicity

    KW - Biotransformation

    KW - Freshwaterorganisms

    KW - Chlorella sp.

    U2 - 10.1016/j.ecoenv.2014.03.004

    DO - 10.1016/j.ecoenv.2014.03.004

    M3 - Article

    VL - 106

    SP - 126

    EP - 135

    JO - Ecotoxicology and Environmental Safety

    JF - Ecotoxicology and Environmental Safety

    SN - 0147-6513

    ER -