ArticlemSystems2024
Distinct microbial nitrogen cycling processes in the deepest part of the ocean.
Article in mSystems, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Vertical distribution and metabolic diversity of autotrophic microbes in the deep sediment of the challenger deep.Environmental microbiome · 2026Article
- Genomics-based insights into the expanded diversity and adaptation strategies of hadal trench anammox bacteria.ISME communications · 2026Article
- Variations in deep-sea microbial composition and assembly mechanisms under different culture strategies.Frontiers in microbiology · 2026Article
- Alkane degradation mechanism ofFrontiers in microbiology · 2025Article
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Authors and funding
5 authors.
Funding
Abstract
The Mariana Trench (MT) is the deepest part of the ocean on Earth. Previous studies have described the microbial community structures and functional potential in the seawater and surface sediment of MT. Still, the metabolic features and adaptation strategies of the microorganisms involved in nitrogen cycling processes are poorly understood. In this study, comparative metagenomic approaches were used to study microbial nitrogen cycling in three MT habitats, including hadal seawater [9,600-10,500 m below sea level (mbsl)], surface sediments [0-46 cm below seafloor (cmbsf) at a water depth between 7,143 and 8,638 mbsl], and deep sediments (200-306 cmbsf at a water depth of 8,300 mbsl). We identified five new nitrite-oxidizing bacteria (NOB) lineages that had adapted to the oligotrophic MT slope sediment, IMPORTANCE: The metabolic features and adaptation strategies of the nitrogen cycling microorganisms in the deepest part of the ocean are largely unknown. This study revealed that anammox bacteria might perform aerobic respiration in response to nutrient limitation or O
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