ArticleApplied and environmental microbiology2020
Expanded Diversity and Metabolic Versatility of Marine Nitrite-Oxidizing Bacteria Revealed by Cultivation- and Genomics-Based Approaches.
Article in Applied and environmental microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed.
- Seagrass-derived carbon suppresses nitrification and NISME communications · 2026Article
- Genomics and physiological characterizations of an acidotolerant nitrite-oxidizingApplied and environmental microbiology · 2025Article
- Phylogenetically and metabolically diverse active carbon-fixing microbes reside in mangrove sediments.Microbiome · 2025Article
- The interplay of carbon and nitrogen cycling driven by watershed microorganisms.Frontiers in microbiology · 2025Review
- Microbial ecology of subsurface granitic bedrock: a humid-arid site comparison in Chile.ISME communications · 2025Article
- Quest for the Nitrogen-Metabolic Versatility of Microorganisms in Soil and Marine Ecosystems.Microorganisms · 2024Article
- Dating Ammonia-Oxidizing Bacteria with Abundant Eukaryotic Fossils.Molecular biology and evolution · 2024Article
- An abundant bacterial phylum with nitrite-oxidizing potential in oligotrophic marine sediments.Communications biology · 2024Article
- Dynamics and activity of an ammonia-oxidizing archaea bloom in South San Francisco Bay.The ISME journal · 2024Article
- Evolutionary history and origins of Dsr-mediated sulfur oxidation.The ISME journal · 2024Article
- Unveiling the hidden diversity and functional role of Chloroflexota in full-scale wastewater treatment plants through genome-centric analyses.ISME communications · 2024Article
- Metabolic and phylogenetic diversity in the phylumISME communications · 2024Article
- Analyzing Gut Microbial Community inJournal of microbiology and biotechnology · 2023Article
- Cultivation and genomic characterization of novel and ubiquitous marine nitrite-oxidizing bacteria from the Nitrospirales.The ISME journal · 2023Article
- Pangenome analysis provides insights into the genetic diversity, metabolic versatility, and evolution of the genusMicrobiology spectrum · 2023Article
- Metagenomic Views of Microbial Communities in Sand Sediments Associated with Coral Reefs.Microbial ecology · 2023Article
- Mixotrophy broadens the ecological niche range of the iron oxidizer Sideroxydans sp. CL21 isolated from an iron-rich peatland.FEMS microbiology ecology · 2023Article
- Complementary Strategies to Unlock Biosynthesis Gene Clusters Encoding Secondary Metabolites in the Filamentous FungusJournal of fungi (Basel, Switzerland) · 2022Article
- Nitrogen cycling and microbial cooperation in the terrestrial subsurface.The ISME journal · 2022Article
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6 authors.
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Abstract
Nitrite-oxidizing bacteria (NOB) are ubiquitous and abundant microorganisms that play key roles in global nitrogen and carbon biogeochemical cycling. Despite recent advances in understanding NOB physiology and taxonomy, currently very few cultured NOB or representative NOB genome sequences from marine environments exist. In this study, we employed enrichment culturing and genomic approaches to shed light on the phylogeny and metabolic capacity of marine NOB. We successfully enriched two marine NOB (designated MSP and DJ) and obtained a high-quality metagenome-assembled genome (MAG) from each organism. The maximum nitrite oxidation rates of the MSP and DJ enrichment cultures were 13.8 and 30.0 μM nitrite per day, respectively, with these optimum rates occurring at 0.1 mM and 0.3 mM nitrite, respectively. Each enrichment culture exhibited a different tolerance to various nitrite and salt concentrations. Based on phylogenomic position and overall genome relatedness indices, both NOB MAGs were proposed as novel taxa within the Nitrospinota and Nitrospirota phyla. Functional predictions indicated that both NOB MAGs shared many highly conserved metabolic features with other NOB. Both NOB MAGs encoded proteins for hydrogen and organic compound metabolism and defense mechanisms for oxidative stress. Additionally, these organisms may have the genetic potential to produce cobalamin (an essential enzyme cofactor that is limiting in many environments) and, thus, may play an important role in recycling cobalamin in marine sediment. Overall, this study appreciably expands our understanding of the Nitrospinota and Nitrospirota phyla and suggests that these NOB play important biogeochemical roles in marine habitats.
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