ArticleFEMS microbiology letters2019
Short exposure to oxygen and sulfide alter nitrification, denitrification, and DNRA activity in seasonally hypoxic estuarine sediments.
Article in FEMS microbiology letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 59 citations in OpenAlex.
- Metabolic division of labor drives estuarine-coastal N2O emissions.The ISME journal · 2026Article
- Contrasting microbial iron metabolism in sediments from oxic and hypoxic estuaries.Frontiers in microbiology · 2026Article
- Effects of sulfur on nitrogen transformation in malodorous rivers with different remediations.Applied microbiology and biotechnology · 2025Article
- Sediments From a Seasonally Euxinic Coastal Ecosystem Show High Nitrogen Cycling Potential.Environmental microbiology · 2025Article
- Dissimilatory nitrate reductions in soil Neobacillus and Bacillus strains under aerobic condition.Journal of microbiology (Seoul, Korea) · 2025Article
- Versatile nitrate-respiring heterotrophs are previously concealed contributors to sulfur cycle.Nature communications · 2025Article
- Trichlorobacter ammonificans, a dedicated acetate-dependent ammonifier with a novel module for dissimilatory nitrate reduction to ammonia.The ISME journal · 2023Article
- Changes in the Rhizosphere Prokaryotic Community Structure ofMicroorganisms · 2023Article
- Unraveling Nitrogen, Sulfur, and Carbon Metabolic Pathways and Microbial Community Transcriptional Responses to Substrate Deprivation and Toxicity Stresses in a Bioreactor Mimicking Anoxic Brackish Coastal Sediment Conditions.Frontiers in microbiology · 2022Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Increased organic loading to sediments from eutrophication often results in hypoxia, reduced nitrification and increased production of hydrogen sulfide, altering the balance between nitrogen removal and retention. We examined the effect of short-term exposure to various oxygen and sulfide concentrations on sediment nitrification, denitrification and DNRA from a chronically hypoxic basin in Roskilde Fjord, Denmark. Surprisingly, nitrification rates were highest in the hypoxic and anoxic treatments (about 5 μmol cm-3 d-1) and the high sulfide treatment was not significantly different than the oxic treatment. Denitrification in the hypoxic treatment was highest at 1.4 μmol cm-3 d-1 and significantly higher than the high sulfide treatment. For DNRA, the rate in high sulfide treatment was 2 μmol cm-3 d-1. This was significantly higher than all oxygen treatments that were near zero. In this system, nitrifiers rapidly recovered from conditions typically considered inhibiting, while denitrifiers had a more muted response. DNRA bacteria appear to depend on sulfide for nitrate reduction. Anammox was insignificant. Thus, in estuaries and coastal systems that experience short-term variations in oxygen and sulfide, capabilities of microbial communities are more diverse and tolerant of suboptimal conditions than some paradigms suggest.
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