ArticleMarine biotechnology (New York, N.Y.)2012
Abundance, diversity and activity of sulfate-reducing prokaryotes in heavy metal-contaminated sediment from a salt marsh in the Medway Estuary (UK).
Article in Marine biotechnology (New York, N.Y.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 49 citations in OpenAlex.
- Sulfidogenic Microbial Communities of the Uzen High-Temperature Oil Field in Kazakhstan.Microorganisms · 2021Article
- Assessing the Diversity of Benthic Sulfate-Reducing Microorganisms in Northwestern Gulf of Mexico by Illumina Sequencing of dsrB Gene.Microbial ecology · 2021Article
- Influence of Temperature and Sulfate Concentration on the Sulfate/Sulfite Reduction Prokaryotic Communities in the Tibetan Hot Springs.Microorganisms · 2021Article
- Sulfate-reducing bacterial community shifts in response to acid mine drainage in the sediment of the Hengshi watershed, South China.Environmental science and pollution research international · 2021Article
- Impacts of Human Activities on the Composition and Abundance of Sulfate-Reducing and Sulfur-Oxidizing Microorganisms in Polluted River Sediments.Frontiers in microbiology · 2019Article
- Microbial Diversity and Community Structure of Sulfate-Reducing and Sulfur-Oxidizing Bacteria in Sediment Cores from the East China Sea.Frontiers in microbiology · 2017Article
- Community structure of a sulfate-reducing consortium in lead-contaminated wastewater treatment process.World journal of microbiology & biotechnology · 2017Article
- Diversity and Composition of Sulfate-Reducing Microbial Communities Based on Genomic DNA and RNA Transcription in Production Water of High Temperature and Corrosive Oil Reservoir.Frontiers in microbiology · 2017Article
- Expression of copper-resistance genes in microbial communities under copper stress and oxic/anoxic conditions.Environmental science and pollution research international · 2016Article
- Relative contributions of mercury bioavailability and microbial growth rate on net methylmercury production by anaerobic mixed cultures.Environmental science. Processes & impacts · 2015Article
- Evolutionary history influences the salinity preference of bacterial taxa in wetland soils.Frontiers in microbiology · 2015Article
- Culture-dependent and independent studies of microbial diversity in highly copper-contaminated Chilean marine sediments.Microbial ecology · 2013Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We investigated the diversity and activity of sulfate-reducing prokaryotes (SRP) in a 3.5-m sediment core taken from a heavy metal-contaminated site in the Medway Estuary, UK. The abundance of SRPs was quantified by qPCR of the dissimilatory sulfite reductase gene β-subunit (dsrB) and taking into account DNA extraction efficiency. This showed that SRPs were abundant throughout the core with maximum values in the top 50 cm of the sediment core making up 22.4% of the total bacterial community and were 13.6% at 250 cm deep. Gene libraries for dsrA (dissimilatory sulfite reductase α-subunit) were constructed from the heavily contaminated (heavy metals) surface sediment (top 20 cm) and from the less contaminated and sulfate-depleted, deeper zone (250 cm). Certain cloned sequences were similar to dsrA found in members of the Syntrophobacteraceae, Desulfobacteraceae and Desulfovibrionaceae as well as a large fraction (60%) of novel sequences that formed a deep branching dsrA lineage. Phylogenetic analysis of metabolically active SRPs was performed by reverse transcription PCR and single strand conformational polymorphism analysis (RT-PCR-SSCP) of dsrA genes derived from extracted sediment RNA. Subsequent comparative sequence analysis of excised SSCP bands revealed a high transcriptional activity of dsrA belonging to Desulfovibrio species in the surface sediment. These results may suggest that members of the Desulfovibrionaceae are more active than other SRP groups in heavy metal-contaminated surface sediments.
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