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Klumpp, James F.

doi:10.1023/a:1017990813314

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…4 The biotransformation of arsenicals by marine macroalgae in culture medium is the subject of a limited number of reports. 2,[7][8][9] Complex arsenic compounds are produced by these algae under different conditions, but the compounds were not characterized. Therefore, this work was undertaken to determine if and how arsenosugars are produced by macroalgae, following exposure to As(V) in a controlled environment.…”

Section: Introductionmentioning

confidence: 99%

Biomethylation and bioaccumulation of arsenic(V) by marine alga Fucus gardneri

Granchinho

Polishchuk

Cullen

et al. 2001

Applied Organom Chemis

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The brown alga, Fucus gardneri, was collected from Vancouver Island, B.C., Canada. Fucus samples were acclimated in seawater and then exposed to arsenic(V) in artificial seawater, all under axenic conditions. The arsenic species in the Fucus samples were extracted into 1:1 methanol/H 2 O and identified by using ionpairing high-performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP-MS). Anion-exchange HPLC-ICP-MS was used to identify the arsenic species in the growth medium. It was found that $73% of the original arsenosugars in the F. gardneri samples were lost during the acclimation period. Arsenite [As(III)] and dimethylarsenate [DMA] concentration increased in the Fucus samples after exposure to arsenate [As(V)]. A small increase in the concentration of an arsenosugar was seen during this period, accompanied by a further decrease in the concentration of two other arsenosugars. The experiments provided very little evidence for the hypothesis that arsenosugars are produced by the macroalgae.

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