@article {5000,
	title = {Antimony biomethylation by the wood rotting fungus Phaeolus schweinitzii},
	journal = {Applied Organometallic Chemistry},
	volume = {15},
	number = {6},
	year = {2001},
	note = {ISI Document Delivery No.: 435TUTimes Cited: 18Cited Reference Count: 27},
	month = {Jun},
	pages = {473-480},
	type = {Article},
	abstract = {The wood rotting fungus, Phaeolus schweinitzii, efficiently transforms the antimony(III) compounds potassium antimony tartrate and antimony trioxide to nonvolatile dimethylantimony and trimethylantimony species, The organoantimony species were detected in potato dextrose broth media samples by using hydride generation-gas chromatography-atomic absorption spectroscopy (HG-GC-AAS). The average concentrations of trimethylantimony species after 40 days incubation with potassium antimony tartrate were approximately 35 mug, 155 mug and 520 mug Sb/l, for substrate concentrations of 10 mg, 100 mg and 1000 mg Sb/l respectively. Thus, the maximum yield of trimethylantimony species was approximately 0.4\%, When antimony trioxide (saturated solution, 4 mg Sb/l) was used as a substrate, the average concentration of trimethylantimony species was 150 mug Sb/l after 40 days. The HG-GC-AAS response for the dimethylantimony species was less than that for the trimethylantimony species; however, quantification was not possible because of the lack of an appropriate standard. In comparison, cultures of P, schweinitzii incubated with 1 mg As/I as sodium arsenite contained approximately 200 mug As/I as trimethylarsenic species, i.e. 20\% yield, Biomethylation of antimony(V) was inefficient: cultures contained only 3 mug Sb/l as trimethylantimony species after incubation with 100 mg Sb/l as potassium hexahydroxyantimonate, No organoantimony species were detected in control cultures that contained only medium and inorganic antimony compounds. The identities of the organoantimony species were confirmed by using CC-Mass Spectrometry, Copyright (C) 2001 John Wiley \& Sons, Ltd.},
	keywords = {ABSORPTION SPECTROSCOPY, CHROMATOGRAPHY MASS-SPECTROMETRY, chromatography-atomic, CONFIRMATION, CULTURES, dimethylantimony, GENERATION, GROWTH, HUMICOLA, hydride generation-gas, infant death syndrome (SIDS), INFANT-DEATH-SYNDROME, MICROORGANISMS, Phaeolus schweinitzii, SCOPULARIOPSIS-BREVICAULIS, SPECIATION, sudden, trimethylantimony},
	isbn = {0268-2605},
	url = {<Go to ISI>://000168897900005},
	author = {Andrewes, P. and Cullen, W. R. and Polishchuk, E. and Reimer, K. J.}
}
@article {4719,
	title = {Arsenic and antimony biomethylation by Scopulariopsis brevicaulis: Interaction of arsenic and antimony compounds},
	journal = {Environmental Science \& Technology},
	volume = {34},
	number = {11},
	year = {2000},
	note = {ISI Document Delivery No.: 320GXTimes Cited: 21Cited Reference Count: 26},
	month = {Jun},
	pages = {2249-2253},
	type = {Article},
	abstract = {The biomethylation of arsenic by the filamentous fungus Scopulariopsis brevicaulis is well documented, and the biomethylation of antimony by this fungus was recently established. However, in all the previous studies each metalloid was studied in isolation. Arsenic and antimony are often associated in the environment, and so an understanding of interactions between these elements is necessary. To this end, S. brevicaulis was grown in media containing mixtures of arsenic and antimony compounds in various proportions, and the principle nonvolatile biomethylation products (trimethylantimony and trimethylarsenic species) in the medium were quantified by using HG-GC-AAS. It was found that the yield of trimethylantimony compounds, obtained from the biomethylation of potassium antimony tartrate, was increased in the presence of sodium arsenite. The production of trimethylarsenic species from sodium arsenite was significantly inhibited in the presence of antimony (either as potassium antimony tartrate or antimony trioxide) at antimony concentrations too low to inhibit growth. This is although arsenic(III), in the absence of antimony, is much more readily biomethylated. That is 1.2-5.3\% of added arsenic is biomethylated by S. brevicaulis whereas only 0.0006-0.008\% of added antimony(III) is biomethylated over 1 month. Potassium hexahydroxyantimonate had no effect on arsenic biomethylation. The addition of potassium tartrate to cultures did not inhibit arsenic biomethylation. The biomethylation of sodium arsenate was not inhibited as much by antimony compounds. The inhibitory effect of antimony was found to be a function of the ratio of antimony to arsenic rather than the absolute amount of antimony.},
	keywords = {CONFIRMATION, CULTURES, HUMICOLA, HYDRIDE GENERATION, INFANT-DEATH-SYNDROME, INORGANIC ANTIMONY, MICROORGANISMS, RELEVANCE, SPECIATION, SPECTROMETRY},
	isbn = {0013-936X},
	url = {<Go to ISI>://000087394400040},
	author = {Andrewes, P. and Cullen, W. R. and Polishchuk, E.}
}
