Article (Scientific journals)
Distribution of Arsenic Resistance Genes in Prokaryotes.
Ben Fekih, Ibtissem; Zhang, Chengkang; Li, Yuan Ping et al.
2018In Frontiers in Microbiology, 9 (OCT), p. 2473
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Keywords :
ars operon; arsenic; efflux; mine railings; remediation; resistance; Microbiology; Microbiology (medical)
Abstract :
[en] Arsenic is a metalloid that occurs naturally in aquatic and terrestrial environments. The high toxicity of arsenic derivatives converts this element in a serious problem of public health worldwide. There is a global arsenic geocycle in which microbes play a relevant role. Ancient exposure to arsenic derivatives, both inorganic and organic, has represented a selective pressure for microbes to evolve or acquire diverse arsenic resistance genetic systems. In addition, arsenic compounds appear to have been used as a toxin in chemical warfare for a long time selecting for an extended range of arsenic resistance determinants. Arsenic resistance strategies rely mainly on membrane transport pathways that extrude the toxic compounds from the cell cytoplasm. The ars operons, first discovered in bacterial R-factors almost 50 years ago, are the most common microbial arsenic resistance systems. Numerous ars operons, with a variety of genes and different combinations of them, populate the prokaryotic genomes, including their accessory plasmids, transposons, and genomic islands. Besides these canonical, widespread ars gene clusters, which confer resistance to the inorganic forms of arsenic, additional genes have been discovered recently, which broadens the spectrum of arsenic tolerance by detoxifying organic arsenic derivatives often used as toxins. This review summarizes the presence, distribution, organization, and redundance of arsenic resistance genes in prokaryotes.
Precision for document type :
Review article
Disciplines :
Environmental sciences & ecology
Author, co-author :
Ben Fekih, Ibtissem   ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs ; Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China
Zhang, Chengkang ;  Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China
Li, Yuan Ping;  Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China
Zhao, Yi;  Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
Alwathnani, Hend A;  Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
Saquib, Quaiser;  Department of Zoology, College of Sciences, King Saud University, Riyadh, Saudi Arabia
Rensing, Christopher;  Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China ; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
Cervantes, Carlos;  Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana, Morelia, Mexico
 These authors have contributed equally to this work.
Language :
English
Title :
Distribution of Arsenic Resistance Genes in Prokaryotes.
Publication date :
2018
Journal title :
Frontiers in Microbiology
eISSN :
1664-302X
Publisher :
Frontiers Media S.A., Switzerland
Volume :
9
Issue :
OCT
Pages :
2473
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China
CONACYT - Consejo Nacional de Ciencia y Tecnología
Funding text :
Authors would like to thank Twasol Research Excellence Program (TRE Program), King Saud University, Riyadh, Saudi Arabia for support.Work in the lab of CR was supported by the National Natural Science Foundation of China (Grant No. 31770123), “100” Talents Program from Fujian province, High level foreigner expertise program from Fujian province, International cooperation program from Fujian Agriculture and Forestry University. CC acknowledges support from Consejo Nacional de Ciencia y Tecnología (CONACYT), México (Grant No. 220040) and Coordinación de Investigación Científica, Universidad Michoacana (Grant No. 2.6).
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