ArticleMicrobial ecology2008
Quantifying expression of a dissimilatory (bi)sulfite reductase gene in petroleum-contaminated marine harbor sediments.
Article in Microbial ecology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 51 citations in OpenAlex.
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- Biogenic Sulfide-Mediated Iron Reduction at Low pH.Microorganisms · 2024Article
- Dynamic of sulphate-reducing microorganisms in petroleum-contaminated marine sediments inhabited by the polychaete Hediste diversicolor.Environmental science and pollution research international · 2015Article
- Diversity and distribution of 16S rRNA and phenol monooxygenase genes in the rhizosphere and endophytic bacteria isolated from PAH-contaminated sites.Scientific reports · 2015Article
- Abundance, diversity and activity of sulfate-reducing prokaryotes in heavy metal-contaminated sediment from a salt marsh in the Medway Estuary (UK).Marine biotechnology (New York, N.Y.) · 2012Article
- Denitrifying bacteria from the genus Rhodanobacter dominate bacterial communities in the highly contaminated subsurface of a nuclear legacy waste site.Applied and environmental microbiology · 2012Article
- Gene Expression Correlates with Process Rates Quantified for Sulfate- and Fe(III)-Reducing Bacteria in U(VI)-Contaminated Sediments.Frontiers in microbiology · 2012Article
- Trace elements affect methanogenic activity and diversity in enrichments from subsurface coal bed produced water.Frontiers in microbiology · 2012Article
- Hydrocarbon-degrading bacteria and the bacterial community response in gulf of Mexico beach sands impacted by the deepwater horizon oil spill.Applied and environmental microbiology · 2011Article
- Molecular analysis of the metabolic rates of discrete subsurface populations of sulfate reducers.Applied and environmental microbiology · 2011Article
- A limited microbial consortium is responsible for extended bioreduction of uranium in a contaminated aquifer.Applied and environmental microbiology · 2011Article
- Article
- Diversity of dissimilatory sulfite reductase genes (dsrAB) in a salt marsh impacted by long-term acid mine drainage.Applied and environmental microbiology · 2010Article
- Article
- Quantification of Desulfovibrio vulgaris dissimilatory sulfite reductase gene expression during electron donor- and electron acceptor-limited growth.Applied and environmental microbiology · 2008Article
- Functional diversity and electron donor dependence of microbial populations capable of U(VI) reduction in radionuclide-contaminated subsurface sediments.Applied and environmental microbiology · 2008Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The possibility of quantifying in situ levels of transcripts for dissimilatory (bi)sulfite reductase (dsr) genes to track the activity of sulfate-reducing microorganisms in petroleum-contaminated marine harbor sediments was evaluated. Phylogenetic analysis of the cDNA generated from mRNA for a ca. 1.4 kbp portion of the contiguous dsrA and dsrB genes suggested that Desulfosarcina species, closely related to cultures known to anaerobically oxidize aromatic hydrocarbons, were active sulfate reducers in the sediments. The levels of dsrA transcripts (per mug total mRNA) were quantified in sediments incubated anaerobically at the in situ temperature as well as in sediments incubated at higher temperatures and/or with added acetate to increase the rate of sulfate reduction. Levels of dsrA transcripts were low when there was no sulfate reduction because the sediments were depleted of sulfate or if sulfate reduction was inhibited with added molybdate. There was a direct correlation between dsrA transcript levels and rates of sulfate reduction when sulfate was at ca. 10 mM in the various sediment treatments, but it was also apparent that within a given sediment, dsrA levels increased over time as long as sulfate was available, even when sulfate reduction rates did not increase. These results suggest that phylogenetic analysis of dsr transcript sequences may provide insight into the active sulfate reducers in marine sediments and that quantifying levels of dsrA transcripts can indicate whether sulfate reducers are active in particular sediment. Furthermore, it may only be possible to use dsrA transcript levels to compare the relative rates of sulfate reduction in sediments when sulfate concentrations, and possibly other environmental conditions, are comparable.
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