Methylophaga pinxianii sp. nov., isolated from the Mariana Trench

Wei, Tingting; Zhang, Ruyi; Quan, Zhe‐Xue

doi:10.1099/ijsem.0.005414

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…They had the potential function of organic matter fermentation to produce acetic acid, hydrogen, and methyl compounds, subsequently supporting methane production (Liu et al, 2018 ). Methylophaga has been found from a variety of environments, including coastal marine water (Janvier et al, 1985 ; Neufeld et al, 2007 ), the sediment of the Mariana Trench (Wei et al, 2022 ), and Paardenmarkt site in the Belgian part of the North Sea (Kundu et al, 2023 ), with ammonium, nitrate, and urea as the typical nitrogen sources (Janvier et al, 1985 ). After 10-day incubation, the AOA Shannon diversity was higher at the Challenger Deep, which might be caused by the lower C/N ratios of the sediment as suggested in the previous study (Wang et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Archaea predominate in the ammonia oxidation process in the sediments of the Yap and Mariana Trenches

Liu,

Jing,

Wang

2023

Front. Microbiol.

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Ammonia-oxidizing archaea (AOA) and bacteria (AOB) play an important role in oxidizing ammonia to nitrite in different marine environments; however, their relative contribution to ammonia oxidation in the deep-sea sediments is still largely unknown. Sediment samples from seamounts and the Challenger Deep along the arc of the Yap Trench and the Mariana Trench were used for the investigation of the geographical distribution of AOA and AOB at the cDNA level, with associated potential nitrification rates (PNRs) being measured. AOA was predominated by Candidatus Nitrosopumilus and Nitrosopumilaceae, while Methylophaga was the major group of AOB. Significantly higher transcript abundance of the AOA amoA gene than that of AOB appeared in all samples, corresponding to the much higher RNRs contributed to AOA. Both the total and AOA PNRs were significantly higher in the deeper layers due to the high sensitivity of AOA to ammonia and oxygen than in AOB. In the surface layers, TN and TOC had significant positive and negative effects on the distribution of the AOA amoA gene transcripts, respectively, while NH4+ concentration was positively correlated with the AOB amoA gene transcripts. Our study demonstrated that AOA played a more important role than AOB in the ammonia-oxidizing process that occurred in the sediments of the Yap and Mariana Trenches and would expand the understanding of their ecological contribution to the nitrification process and nitrogen flux of trenches.

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Section: Discussionmentioning

confidence: 99%

Archaea predominate in the ammonia oxidation process in the sediments of the Yap and Mariana Trenches

Liu,

Jing,

Wang

2023

Front. Microbiol.

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Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) bioanodes in Co-doped modified microbial fuel cell promote sulfamethoxine degradation with high enrichment of electroactive bacteria and extracellular electron transfer

Sun,

Chen,

Wen

et al. 2024

Renewable Energy

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Abyssibius alkaniclasticus gen. nov., sp. nov., a novel member of the family Rhodobacteraceae, isolated from the Mariana Trench

Wei

Fan

Quan

2023

International Journal of Systematic and Evolutionary Microbiology

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A Gram-stain-negative bacterium with rod-shaped or irregular cells approximately 0.5–0.9×2.0–3.8 µm in size, designated as 960558T, was isolated from sediment sampled in the Mariana Trench. Strain 960558T grows at 4–37 °C (optimum, 28 °C), pH 6–7 (optimum, pH 7) and in the presence of 1–5 % (w/v) NaCl (optimum, 3 %). Strain 960558T utilizes tetradecane or hexadecane as a sole carbon and energy source, respectively. Phylogenetic trees based on 16S rRNA gene sequences and phylogenomic reconstruction revealed a close phylogenetic relationship between strain 960558T and members of the family Rhodobacteraceae by forming a separate branch within the type species of closely related genera. The validly published species that is most closely related to strain 960558T is Planktotalea lamellibrachiae JAM 119T, which has the highest 16S rRNA gene sequence similarity (93.47 %). Ubiquinone 10 is the predominant ubiquinone, while C16 : 0, 11-methyl C18 : 1 ω7c and C18 : 1 ω7c and/or C18 : 1 ω6c are the predominant fatty acids (>10 %). Additionally, phosphatidylglycerol, glycolipids, diphosphatidylglycerol, unidentified polar lipids and unidentified aminolipids are the major polar lipids. The DNA G+C content of strain 960558T is 61 %. Average nucleotide identity and digital DNA–DNA hybridization results of strain 960558T with other type strains are <70.2 and 22.1 %, respectively. Based on its phylogenetic, chemotaxonomic and other phenotypic properties, strain 960558T is considered to represent a novel genus and species within the family Rhodobacteraceae , for which the name Abyssibius alkaniclasticus gen. nov., sp. nov. is proposed. The type strain of Abyssibius alkaniclasticus is 960558T (=KCTC 82619T=MCCC 1K04727T).

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Methylophaga pinxianii sp. nov., isolated from the Mariana Trench

Cited by 7 publications

References 30 publications

Archaea predominate in the ammonia oxidation process in the sediments of the Yap and Mariana Trenches

Archaea predominate in the ammonia oxidation process in the sediments of the Yap and Mariana Trenches

Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) bioanodes in Co-doped modified microbial fuel cell promote sulfamethoxine degradation with high enrichment of electroactive bacteria and extracellular electron transfer

Abyssibius alkaniclasticus gen. nov., sp. nov., a novel member of the family Rhodobacteraceae, isolated from the Mariana Trench

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