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. 1975 Apr;29(4):491-4.
doi: 10.1128/am.29.4.491-494.1975.

Transformation of elemental mercury by bacteria

H W Holm, M F Cox

Transformation of elemental mercury by bacteria

H W Holm et al. Appl Microbiol. 1975 Apr.

Abstract

The fate and impact of elemental mercury in closed bacterial cultures were examined. The quantity of elemental mercury oxidized by bacteria ranged from small amounts for Pseudomonas aeruginosa, P. fluorescens, Escherichia coli, and Citrobacter to essentially all of the added elemental mercury for Bacillus subtilis and B. megaterium. The percentage of the total mercury in the system associated with bacterial cells ranged from 18.6 to 43.2%. Growth of the two Pseudomonas species was inhibited by elemental mercury, whereas growth of the other cultures was not distinguishable from that in mercury-free controls. No methylmercury was formed by the six cultures within 48 h.

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