ArticleEnvironmental microbiology reports2015
Ammonia-oxidizing Bacteria of the Nitrosospira cluster 1 dominate over ammonia-oxidizing Archaea in oligotrophic surface sediments near the South Atlantic Gyre.
Article in Environmental microbiology reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 27 citations in OpenAlex.
- Gradual COEnvironmental microbiology · 2026Article
- Linking Abundance and Activity of Ammonia-Oxidising Bacteria and Archaea in an Agriculturally Impacted First-Order Stream.Environmental microbiology · 2026Article
- Succession of bacteria and archaea involved in the nitrogen cycle of a seasonally stratified lake.FEMS microbiology letters · 2023Article
- Archaea predominate in the ammonia oxidation process in the sediments of the Yap and Mariana Trenches.Frontiers in microbiology · 2023Article
- Biochemistry shapes growth kinetics of nitrifiers and defines their activity under specific environmental conditions.Biotechnology and bioengineering · 2022Article
- Spatial Distribution of the Pepper Blight (Frontiers in plant science · 2021Article
- Diverse Thaumarchaeota Dominate Subsurface Ammonia-oxidizing Communities in Semi-arid Floodplains in the Western United States.Microbial ecology · 2020Article
- Article
- Ecological Success of the Nitrosopumilus and Nitrosospira Clusters in the Intertidal Zone.Microbial ecology · 2019Article
- Archaea Dominate the Ammonia-Oxidizing Community in Deep-Sea Sediments of the Eastern Indian Ocean-from the Equator to the Bay of Bengal.Frontiers in microbiology · 2017Article
- Archaeal and bacterial communities in deep-sea hydrogenetic ferromanganese crusts on old seamounts of the northwestern Pacific.PloS one · 2017Article
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Authors and funding
9 authors at 2 institutions in 3 countries.
Funding
Abstract
Sediments across the Namibian continental margin feature a strong microbial activity gradient at their surface. This is reflected in ammonium concentrations of < 10 μM in oligotrophic abyssal plain sediments near the South Atlantic Gyre compared with ammonium concentrations of > 700 μM in upwelling areas near the coast. Here we address changes in apparent abundance and structure of ammonia-oxidizing archaeal and bacterial communities (AOA and AOB) along a transect of seven sediment stations across the Namibian shelf by analysing their respective ammonia monooxygenase genes (amoA). The relative abundance of archaeal and bacterial amoA (g(-1) DNA) decreased with increasing ammonium concentrations, and bacterial amoA frequently outnumbered archaeal amoA at the sediment-water interface [0-1 cm below seafloor (cmbsf)]. In contrast, AOA were apparently as abundant as AOB or dominated in several deeper (> 10 cmbsf), anoxic sediment layers. Phylogenetic analyses showed a change within the AOA community along the transect, from two clusters without cultured representatives at the gyre to Nitrososphaera and Nitrosopumilus clusters in the upwelling region. AOB almost exclusively belonged to the Nitrosospira cluster 1. Our results suggest that this predominantly marine AOB lineage without cultured representatives can thrive at low ammonium concentrations and is active in the marine nitrogen cycle.
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