@article {3000,
	title = {BIOACCUMULATION AND EXCRETION OF ARSENIC COMPOUNDS BY A MARINE UNICELLULAR ALGA, POLYPHYSA-PENICULUS},
	journal = {Applied Organometallic Chemistry},
	volume = {8},
	number = {4},
	year = {1994},
	note = {ISI Document Delivery No.: PD643Times Cited: 27Cited Reference Count: 43},
	month = {Jul},
	pages = {313-324},
	type = {Article},
	abstract = {Polyphysa peniculus was grown in artificial sea-water in the presence of arsenate, arsenite, monomethylarsonate and dimethylarsinic acid. The separation and identification of some of the arsenic species produced in the cells as well as in the growth medium were achieved by using hydride generation-gas chromatography-atomic absorption spectrometry methodology. Arsenite and dimethylarsinate were detected following incubation with arsenate. When the alga was treated with arsenite, dimethylarsinate was the major metabolite in the cells and in the growth medium; trace amounts of monomethylarsonate were also detected in the cells. With monomethylarsonate as a substrate, the metabolite is dimethylarsinate. Polyphysa peniculus did not metabolize dimethylarsinic acid when it was used as a substrate. Significant amounts of more complex arsenic species, such as arsenosugars, were not observed in the cells or medium on the evidence of flow injection-microwave digestion-hydride generation-atomic absorption spectrometry methodology. Transfer of the exposed cells to fresh medium caused release of most cell-associated arsenicals to the surrounding environment.},
	keywords = {ARSENIC BIOACCUMULATION, ARSENIC METYLATION, arsenic species, ARSENIC UPTAKE, COMPOUNDS, CONTAINING RIBOFURANOSIDES, ENVIRONMENT, IDENTIFICATION, KELP ECKLONIA-RADIATA, METABOLISM, METHYLATION, NON-REDUCIBLE ARSENICALS, ORGANOARSENIC, PHYTOPLANKTON, POLYPHYSA-PENICULUS, RIVER BEAULIEU, SPECIATION},
	isbn = {0268-2605},
	url = {<Go to ISI>://A1994PD64300004},
	author = {Cullen, W. R. and Harrison, L. G. and Li, H. and Hewitt, G.}
}
@article {3003,
	title = {THE METHYLATION OF ARSENATE BY A MARINE ALGA POLYPHYSA-PENICULUS IN THE PRESENCE OF L-METHIONINE-METHYL-D(3)},
	journal = {Chemosphere},
	volume = {28},
	number = {5},
	year = {1994},
	note = {ISI Document Delivery No.: NC959Times Cited: 13Cited Reference Count: 39},
	month = {Mar},
	pages = {1009-1019},
	type = {Article},
	abstract = {Polyphysa peniculus growing in artificial seawater methylates arsenate to produce a dimethylarsenic derivative, probably dimethylarsinate. When L-methionine-methyl-d3 is added to the culture the CD3 label is incorporated intact in the dimethylarsenic compound to a considerable extent, indicating that S-adenosylmethionine, or some related sulphonium compound, is involved in the biological methylation. Conclusive evidence of the CD3 incorporation was provided by using a specially developed hydride generation-gas chromatography-mass spectrometry methodology.},
	keywords = {ALGAE, arsenic, COMPOUNDS, CONTAINING RIBOFURANOSIDES, ENVIRONMENT, GENERATION GAS CHROMATOGRAPHY MASS SPECTROMETRY (HG-GC-MS), hydride, IDENTIFICATION, KELP ECKLONIA-RADIATA, L-METHIONINE-METHYL-D(3), METHYLARSENIC COMPOUNDS, METHYLATION, NATURAL-WATERS, ORGANOARSENIC, REDUCTION, SPECIATION, SPECTROMETRY},
	isbn = {0045-6535},
	url = {<Go to ISI>://A1994NC95900016},
	author = {Cullen, W. R. and Li, H. and Pergantis, S. A. and Eigendorf, G. K. and Harrison, L. G.}
}
