Insights from the genomes of microbes thriving in uranium-enriched sediments

Brodie Sutcliffe; Anthony A. Chariton; Andrew J. Harford; Grant C. Hose; Sarah Stephenson; Paul Greenfield; David J. Midgley; Ian T. Paulsen

doi:10.1007/s00248-017-1102-z

Insights from the genomes of microbes thriving in uranium-enriched sediments

Brodie Sutcliffe, Anthony A. Chariton, Andrew J. Harford, Grant C. Hose, Sarah Stephenson, Paul Greenfield, David J. Midgley, Ian T. Paulsen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Elevated uranium dose (4 g kg⁻¹) causes a shift in billabong sediment communities that result in the enrichment of five bacterial species. These taxa include Geobacter, Geothrix and Dyella species, as well as a novel—potentially predatory—Bacteroidetes species, and a new member of class Anaerolineae (Chloroflexi). Additionally, a population of methanogenic Methanocella species was also identified. Genomic reconstruction and metabolic examination of these taxa reveal a host of divergent life strategies and putative niche partitioning. Resistance-nodulation-division heavy metal efflux (RND-HME) transporters are implicated as potential uranium tolerance strategies among the bacterial taxa. Potential interactions, uranium tolerance and ecologically relevant catabolism are presented in a conceptual model of life in this environment.

Original language	English
Pages (from-to)	970–984
Number of pages	15
Journal	Microbial Ecology
Volume	75
Issue number	4
DOIs	https://doi.org/10.1007/s00248-017-1102-z
Publication status	Published - May 2018

Keywords

Genomes
Sediment
Metagenome

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10.1007/s00248-017-1102-z

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abstract = "Elevated uranium dose (4 g kg−1) causes a shift in billabong sediment communities that result in the enrichment of five bacterial species. These taxa include Geobacter, Geothrix and Dyella species, as well as a novel—potentially predatory—Bacteroidetes species, and a new member of class Anaerolineae (Chloroflexi). Additionally, a population of methanogenic Methanocella species was also identified. Genomic reconstruction and metabolic examination of these taxa reveal a host of divergent life strategies and putative niche partitioning. Resistance-nodulation-division heavy metal efflux (RND-HME) transporters are implicated as potential uranium tolerance strategies among the bacterial taxa. Potential interactions, uranium tolerance and ecologically relevant catabolism are presented in a conceptual model of life in this environment.",

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AU - Sutcliffe, Brodie

AU - Chariton, Anthony A.

AU - Harford, Andrew J.

AU - Hose, Grant C.

AU - Stephenson, Sarah

AU - Greenfield, Paul

AU - Midgley, David J.

AU - Paulsen, Ian T.

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AB - Elevated uranium dose (4 g kg−1) causes a shift in billabong sediment communities that result in the enrichment of five bacterial species. These taxa include Geobacter, Geothrix and Dyella species, as well as a novel—potentially predatory—Bacteroidetes species, and a new member of class Anaerolineae (Chloroflexi). Additionally, a population of methanogenic Methanocella species was also identified. Genomic reconstruction and metabolic examination of these taxa reveal a host of divergent life strategies and putative niche partitioning. Resistance-nodulation-division heavy metal efflux (RND-HME) transporters are implicated as potential uranium tolerance strategies among the bacterial taxa. Potential interactions, uranium tolerance and ecologically relevant catabolism are presented in a conceptual model of life in this environment.

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KW - Sediment

KW - Metagenome

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Insights from the genomes of microbes thriving in uranium-enriched sediments

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Keywords

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