Methanogenic Inhibition by Arsenic Compounds

AUTOR(ES)

Sierra-Alvarez, Reyes

FONTE

American Society for Microbiology

RESUMO

The acute acetoclastic methanogenic inhibition of several inorganic and organic arsenicals was assayed. Trivalent species, i.e., methylarsonous acid and arsenite, were highly inhibitory, with 50% inhibitory concentrations of 9.1 and 15.0 μM, respectively, whereas pentavalent species were generally nontoxic. The nitrophenylarsonate derivate, roxarsone, displayed moderate toxicity.

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