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Reference Category Journals
DOI 10.1007/s00253-013-4838-5
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Title (Primary) Bacterial metabolism of environmental arsenic—mechanisms and biotechnological applications
Author Kruger, M.C.; Bertin, P.N.; Heipieper, H.J. ORCID logo ; Arsène-Ploetze, F.
Source Titel Applied Microbiology and Biotechnology
Year 2013
Department UMB; UBT
Volume 97
Issue 9
Page From 3827
Page To 3841
Language englisch
Keywords Arsenic tolerance; Genomics; Bioreporter; Bioremediation
UFZ wide themes ru3
Abstract Arsenic causes threats for environmental and human health in numerous places around the world mainly due to its carcinogenic potential at low doses. Removing arsenic from contaminated sites is hampered by the occurrence of several oxidation states with different physicochemical properties. The actual state of arsenic strongly depends on its environment whereby microorganisms play important roles in its geochemical cycle. Due to its toxicity, nearly all organisms possess metabolic mechanisms to resist its hazardous effects, mainly by active extrusion, but also by extracellular precipitation, chelation, and intracellular sequestration. Some microbes are even able to actively use various arsenic compounds in their metabolism, either as an electron donor or as a terminal electron acceptor for anaerobic respiration. Some microorganisms can also methylate inorganic arsenic, probably as a resistance mechanism, or demethylate organic arsenicals. Bioavailability of arsenic in water and sediments is strongly influenced by such microbial activities. Therefore, understanding microbial reactions to arsenic is of importance for the development of technologies for improved bioremediation of arsenic-contaminated waters and environments. This review gives an overview of the current knowledge on bacterial interactions with arsenic and on biotechnologies for its detoxification and removal.
Persistent UFZ Identifier
Kruger, M.C., Bertin, P.N., Heipieper, H.J., Arsène-Ploetze, F. (2013):
Bacterial metabolism of environmental arsenic—mechanisms and biotechnological applications
Appl. Microbiol. Biotechnol. 97 (9), 3827 - 3841 10.1007/s00253-013-4838-5