Arsenolipid biosynthesis by the unicellular alga Dunaliella tertiolecta is influenced by As/P ratio in culture experiments.

  title={Arsenolipid biosynthesis by the unicellular alga Dunaliella tertiolecta is influenced by As/P ratio in culture experiments.},
  author={Ronald A. Glabonjat and Josef Ehgartner and Elliott G. Duncan and Georg Raber and Kenneth B Jensen and Frank Krikowa and William A. Maher and Kevin A. Francesconi},
  journal={Metallomics : integrated biometal science},
  volume={10 1},
The influence of arsenate and phosphate levels in water on the formation of arsenic-containing lipids (arsenolipids) and water-soluble arsenicals by a unicellular marine alga was investigated by exposing Dunaliella tertiolecta to five regimes of arsenic and phosphate, and determining the biosynthesized organoarsenicals with HPLC/mass spectrometry. Under all conditions, the major arsenolipid produced by D. tertiolecta was the novel phytyl 5-dimethylarsinoyl-2-O-methyl-ribofuranoside… 
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Algae accumulated arsenate readily and transformed it into several arsenic compounds depending on the exposure concentration, and algae had significant quantities of all arsenic metabolites monitored, consistent with a process of arsenate detoxification by reduction and alkylation at higher exposures.
Arsenic Methyltransferase is Involved in Arsenosugar Biosynthesis by Providing DMA.
The results suggest that ArsM is a required enzyme for the methylation of inorganic arsenicals, but not required for the synthesis of arsenosugars from DMA, and that DMA is the precursor of arsenoarsenicals biosynthesis.
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Uptake and metabolism of arsenate, methylarsonate and arsenobetaine by axenic cultures of the phytoplankton Dunaliella tertiolecta
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The possible role of arsenosugars as precursors to arsenobetaine was investigated by feeding pure arsenosugar compounds to the shrimp, Crangon crangon, and monitoring the arsenic metabolites in
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