Literature DB >> 29857640

Estimation of mercury-sulfide speciation in sediment pore waters using octanol-water partitioning and implications for availability to methylating bacteria.

Janina M Benoit1,2, Robert P Mason1, Cynthia C Gilmour2.   

Abstract

The octanol-water partioning of inorganic mercury decreased with increasing sulfide, supporting a model that predicts decreased fractions of neutral Hg-S species with increasing sulfide. These results help explain the decreased availability of Hg to methylating bacteria under sulfidic conditions, and the inverse relationship between sulfide and methylmercury observed in sediments.
Copyright © 1999 SETAC.

Entities:  

Keywords:  Bioavailability; Mercury; Methylation; Methylmercury; Partitioning

Year:  1999        PMID： 29857640     DOI： 10.1002/etc.5620181004

Source DB:  PubMed          Journal:  Environ Toxicol Chem        ISSN： 0730-7268            Impact factor:   3.742


  6 in total

1.  Aspects of bioavailability of mercury for methylation in pure cultures of Desulfobulbus propionicus (1pr3).

Authors:  J M Benoit; C C Gilmour; R P Mason
Journal:  Appl Environ Microbiol       Date:  2001-01       Impact factor: 4.792

2.  Sulfate-reducing bacteria methylate mercury at variable rates in pure culture and in marine sediments.

Authors:  J K King; J E Kostka; M E Frischer; F M Saunders
Journal:  Appl Environ Microbiol       Date:  2000-06       Impact factor: 4.792

3.  Mercury methylation by Desulfovibrio desulfuricans ND132 in the presence of polysulfides.

Authors:  Jenny Ayla Jay; Karen J Murray; Cynthia C Gilmour; Robert P Mason; François M M Morel; A Lynn Roberts; Harold F Hemond
Journal:  Appl Environ Microbiol       Date:  2002-11       Impact factor: 4.792

4.  Detailed assessment of the kinetics of Hg-cell association, Hg methylation, and methylmercury degradation in several Desulfovibrio species.

Authors:  Andrew M Graham; Allyson L Bullock; Andrew C Maizel; Dwayne A Elias; Cynthia C Gilmour
Journal:  Appl Environ Microbiol       Date:  2012-08-10       Impact factor: 4.792

5.  Mercury methylation independent of the acetyl-coenzyme A pathway in sulfate-reducing bacteria.

Authors:  Eileen B Ekstrom; François M M Morel; Janina M Benoit
Journal:  Appl Environ Microbiol       Date:  2003-09       Impact factor: 4.792

6.  Methylmercury production in estuarine sediments: role of organic matter.

Authors:  Amina T Schartup; Robert P Mason; Prentiss H Balcom; Terill A Hollweg; Celia Y Chen
Journal:  Environ Sci Technol       Date:  2012-12-21       Impact factor: 9.028
  6 in total

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