ArticleApplied and environmental microbiology2013
Denitrifying alphaproteobacteria from the Arabian Sea that express nosZ, the gene encoding nitrous oxide reductase, in oxic and suboxic waters.
Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed.
- Microbial influence on the larval survival of Japanese eel Anguilla japonica: Antibiotic-mediated alterations and biomarker isolation.PloS one · 2024Article
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- Functional potential and evolutionary response to long-term heat selection of bacterial associates of coral photosymbionts.mSystems · 2023Article
- Aerobic bacteria produce nitric oxide via denitrification and promote algal population collapse.The ISME journal · 2023Article
- Nitrogen cycling activities during decreased stratification in the coastal oxygen minimum zone off Namibia.Frontiers in microbiology · 2023Article
- Diversity and Quantitative Detection of Clade I Type nosZ Denitrifiers in the Arabian Sea Oxygen Minimum Zone.Microbes and environments · 2023Article
- Understanding the Variation of Bacteria in Response to Summertime Oxygen Depletion in Water Column of Bohai Sea.Frontiers in microbiology · 2022Article
- Dissimilatory nitrate reduction and functional genes in two subtropical rivers, China.Environmental science and pollution research international · 2021Article
- Comparative Genomic Analysis ofFrontiers in microbiology · 2021Article
- Distinct nitrogen cycling and steep chemical gradients in Trichodesmium colonies.The ISME journal · 2020Article
- Revegetation on abandoned salt ponds relieves the seasonal fluctuation of soil microbiomes.BMC genomics · 2019Article
- Transcriptional Activities of the Microbial Consortium Living with the Marine Nitrogen-Fixing Cyanobacterium Trichodesmium Reveal Potential Roles in Community-Level Nitrogen Cycling.Applied and environmental microbiology · 2018Article
- Article
- The Green Berry Consortia of the Sippewissett Salt Marsh: Millimeter-Sized Aggregates of Diazotrophic Unicellular Cyanobacteria.Frontiers in microbiology · 2017Article
- Microbiome ofFrontiers in microbiology · 2017Article
- Community Composition of Nitrous Oxide Consuming Bacteria in the Oxygen Minimum Zone of the Eastern Tropical South Pacific.Frontiers in microbiology · 2017Article
- Article
- Trichodesmium genome maintains abundant, widespread noncoding DNA in situ, despite oligotrophic lifestyle.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
- A novel cohabitation between two diazotrophic cyanobacteria in the oligotrophic ocean.The ISME journal · 2015Article
- Metagenomic analysis of size-fractionated picoplankton in a marine oxygen minimum zone.The ISME journal · 2014Article
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3 authors.
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Abstract
Marine ecosystems are significant sources of the powerful greenhouse gas nitrous oxide (N2O). A by-product of nitrification and an intermediate in the denitrification pathway, N2O is formed primarily in oxygen-deficient waters and sediments. We describe the isolation of a group of alphaproteobacteria from the suboxic waters of the Arabian Sea that are phylogenetically affiliated with Labrenzia spp. and other denitrifiers. Quantitative PCR assays revealed that these organisms were very broadly distributed in this semienclosed ocean basin. Their biogeographical range extended from the productive, upwelling region off the Omani shelf to the clear, oligotrophic waters that are found much further south and also included the mesotrophic waters overlying the oxygen minimum zone (OMZ) in the northeastern sector of the Arabian Sea. These organisms actively expressed NosZ (N2O reductase, the terminal step in the denitrification pathway) within the OMZ, an established region of pelagic denitrification. They were found in greatest numbers outside the OMZ, however, and nosZ mRNAs were also readily detected near the base of the upper mixed layer in nutrient-poor, oxic regions. Our findings provide firm molecular evidence of a potential sink for N2O within well-ventilated, oceanic surface waters in this biogeochemically important region. We show that the Labrenzia-like denitrifiers and their close relatives are habitual colonizers of the pseudobenthic environment provided by Trichodesmium spp. We develop the conjecture that the O2-depleted microzones that occur within the colonies of these filamentous, diazotrophic cyanobacteria might provide unexpected niches for the reduction of nitrogen oxides in tropical and subtropical surface waters.
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