Discovery of Candidatus Nitrosomaritimum as a New Genus of Ammonia-Oxidizing Archaea Widespread in Anoxic Saltmarsh Intertidal Aquifers

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(36), P. 16040 - 16054

Published: Aug. 8, 2024

Ammonia-oxidizing archaea (AOA) are widely distributed in marine and terrestrial habitats, contributing significantly to global nitrogen carbon cycles. However, their genomic diversity, ecological niches, metabolic potentials the anoxic intertidal aquifers remain poorly understood. Here, we discovered named a novel AOA genus, Candidatus Nitrosomaritimum, from of Yancheng Wetland, showing close metagenomic abundance previously acknowledged dominant Nitrosopumilus AOA. Further construction ammonia monooxygenase-based phylogeny demonstrated widespread distribution Nitrosomaritimum estuarine-coastal niches sediment. Niche differentiation among sublineages this new genus is driven by salinity dissolved oxygen gradients. Comparative genomics revealed that has genetic capacity utilize urea possesses high-affinity phosphate transporter systems (phnCDE) for surviving phosphorus-limited conditions. Additionally, it contains putative nosZ genes encoding nitrous-oxide (N2O) reductase reducing N2O gas. Furthermore, gained first insights into archaeal phylum Hydrothermarchaeota populations residing potential hydroxylamine-detoxification mutualism with through utilizing AOA-released extracellular hydroxylamine using oxidoreductase. Together, study unravels overlooked role priorly unknown but abundant lineages newly biological transformation pollution mitigation coastal environments.

Language: Английский

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Stand age-related effects of mangrove on archaeal methanogenesis in sediments: Community assembly and co-occurrence patterns

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176596 - 176596

Published: Sept. 30, 2024

Language: Английский

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Connecting coastal wetland microbial community characteristics with soil physicochemical properties across an estuarine salinity and vegetation gradient in Mobile Bay, AL, USA

Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10

Published: Dec. 22, 2023

Coastal wetlands provide a variety of ecological functions that sustain biodiverse habitats, serve as barriers to storm surge, regulate biogeochemical cycles, and yield ecosystem goods services benefit society. The magnitude wetland functional delivery varies with geomorphology landscape position, hydropattern hydrodynamics, vegetation structure composition, soil properties, microbial community assemblages activities. Here we describe physicochemical diversity along salinity gradient in the Mobile Bay estuary, AL, USA discuss how these factors feedback on characteristics functions. We incorporated biomass, diversity, composition into patterns dominant cover type properties. Stepwise model selection using permutation tests indicated >> horizon > strongly influenced microbe-soil relationships. variables governing content were total sulfur concentration surface soils nitrate nitrite (NO x ) for subsurface soils. All biotic abiotic seasonally inundated forested represented distinct biome within estuary compared more frequently flooded increasingly salt-tolerant Typha , tidal shrub, Juncus types. Compared other types examined this study, contained ~80% less organic carbon content, ~75% nitrogen, ~33% phosphorus, ~95% sulfur. Our results show incorporating trait data, including metataxonomics, enzymatics, properties such characterization data.

Language: Английский

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Agricultural practices and ditch size drive microbial community assembly and mediate N- and P-transformation in multistage drainage networks of paddy fields: Insights from a large-scale irrigation district in eastern China

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 350, P. 119625 - 119625

Published: Nov. 23, 2023

Language: Английский

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Microbial communities and mobile genetic elements determine the variations of antibiotic resistance genes for a continuous year in the urban river deciphered by metagenome assembly

Environmental Pollution, Journal Year: 2024, Volume and Issue: 362, P. 125018 - 125018

Published: Sept. 23, 2024

Language: Английский

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