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Oxidative detoxification of hydrogen sulphide detected by mass spectrometry in the soil amoeba Acanthamoeba castellanii

Lloyd, David, Kristensen, Bodil and Degn, Hans 1981. Oxidative detoxification of hydrogen sulphide detected by mass spectrometry in the soil amoeba Acanthamoeba castellanii. Microbiology 126 (1) , pp. 167-170. 10.1099/00221287-126-1-167

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Abstract

Respiration of the soil amoeba Acanthamoeba castellanii is stimulated by low concentrations of H2S (< 17 Pa in the gas phase); consumption of H2S accompanies respiratory stimulation. Inhibition of the main respiratory chain by 1 mm-NaN3 prevents H2S consumption. At higher concentrations, H2S inhibits respiration incompletely; the inhibition is enhanced by 1 mm-salicylhydroxamic acid. Thus this organism has two means of protection against the potentially toxic gas: the ability to oxidize H2S, and the presence of alternative pathways of electron transport which are not blocked by this respiratory inhibitor.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Microbiology Society
ISSN: 1350-0872
Last Modified: 06 Mar 2020 14:00
URI: http://orca.cf.ac.uk/id/eprint/127796

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