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Microbial antimony biogeochemistry: Enzymes, regulation, and related metabolic pathways

Applied and Environmental Microbiology

By:
, , ORCID iD , , , and
https://doi.org/10.1128/AEM.01375-16

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Abstract

Antimony (Sb) is a toxic metalloid that occurs widely at trace concentrations in soil, aquatic systems, and the atmosphere. Nowadays, with the development of its new industrial applications and the corresponding expansion of antimony mining activities, the phenomenon of antimony pollution has become an increasingly serious concern. In recent years, research interest in Sb has been growing and reflects a fundamental scientific concern regarding Sb in the environment. In this review, we summarize the recent research on bacterial antimony transformations, especially those regarding antimony uptake, efflux, antimonite oxidation, and antimonate reduction. We conclude that our current understanding of antimony biochemistry and biogeochemistry is roughly equivalent to where that of arsenic was some 20 years ago. This portends the possibility of future discoveries with regard to the ability of microorganisms to conserve energy for their growth from antimony redox reactions and the isolation of new species of “antimonotrophs.”

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Microbial antimony biogeochemistry: Enzymes, regulation, and related metabolic pathways
Series title:
Applied and Environmental Microbiology
DOI:
10.1128/AEM.01375-16
Volume:
82
Issue:
18
Year Published:
2016
Language:
English
Publisher:
American Society for Microbiology
Contributing office(s):
National Research Program - Western Branch
Description:
14 p.
First page:
5482
Last page:
5495
Online Only (Y/N):
N
Additional Online Files (Y/N):
N