Biogeochemical Factors of Cs, Sr, U, Pu Immobilization in Bottom Sediments of the Upa River, Located in the Zone of Chernobyl Accident DOI Creative Commons

Darya Zelenina,

N. V. Kuzmenkova, Denis Sobolev

et al.

Biology, Journal Year: 2022, Volume and Issue: 12(1), P. 10 - 10

Published: Dec. 21, 2022

Laboratory modeling of Cs, Sr, U, Pu immobilization by phytoplankton the river Upa, affected after Chernobyl accident, has been carried out. Certain conditions are selected for strong fixation radionuclides in bottom sediments due to biogeochemical processes. The process radionuclide removal from water phase via precipitation was based on their accumulation phytoplankton, stimulated nitrogen and phosphorus sources. After eight days stimulation, planktonic phototrophic biomass, dominated cyanobacteria genus Planktothrix, appears sample. effectiveness Sr purification transfer sediment observed within one month. addition ammonium sulfate phosphate (Ammophos) led activation sulfate- iron-reducing bacteria genera Desulfobacterota, Desulfotomaculum, Desulfosporomusa, Desulfosporosinus, Thermodesulfobium, Thiomonas, Thiobacillus, Sulfuritallea, Pseudomonas, which form sulphide ferrous precipitates such as pyrite, wurtzite, hydrotroillite, etc., anaerobic sediments. biogenic mineral composition obtained under laboratory verified thermodynamic modeling.

Language: Английский

Expansion of Armatimonadota through marine sediment sequencing describes two classes with unique ecological roles DOI Creative Commons
John D Carlton, Marguerite V. Langwig, Xianzhe Gong

et al.

ISME Communications, Journal Year: 2023, Volume and Issue: 3(1)

Published: June 24, 2023

Abstract Marine sediments comprise one of the largest environments on planet, and their microbial inhabitants are significant players in global carbon nutrient cycles. Recent studies using metagenomic techniques have shown complexity these communities identified novel microorganisms from ocean floor. Here, we obtained 77 metagenome-assembled genomes (MAGs) bacterial phylum Armatimonadota Guaymas Basin, Gulf California, Bohai Sea, China. These MAGs two previously undescribed classes within Armatimonadota, which propose naming Hebobacteria Zipacnadia. They globally distributed hypoxic anoxic dominant members deep-sea (up to 1.95% raw reads). The described here also unique metabolic capabilities, possessing pathways reduce dioxide acetate via Wood-Ljungdahl pathway (WLP) generating energy through oxidative branch glycolysis as an electron sink, maintaining redox balance WLP. may be autotrophic, not Armatimonadota. Furthermore, play a role sulfur nitrogen cycling, intermediate compounds hydroxylamine sulfite. Description enhances our understanding diversity potential habitats worldwide.

Language: Английский

Citations

21
Influences of hydrodynamics on microbial community assembly and organic carbon composition of resuspended sediments in shallow marginal seas DOI
Yangli Che, Chaoran Lin, Shen Li

et al.

Water Research, Journal Year: 2023, Volume and Issue: 248, P. 120882 - 120882

Published: Nov. 15, 2023

Language: Английский

Citations

16
Globally distributed marine Gemmatimonadota have unique genomic potentials DOI Creative Commons
Xianzhe Gong,

Le Xu,

Marguerite V. Langwig

et al.

Microbiome, Journal Year: 2024, Volume and Issue: 12(1)

Published: Aug. 10, 2024

Gemmatimonadota bacteria are widely distributed in nature, but their metabolic potential and ecological roles marine environments poorly understood. Here, we obtained 495 metagenome-assembled genomes (MAGs), associated viruses, from coastal to deep-sea sediments around the world. We used this expanded genomic catalog compare protein composition update phylogeny of these bacteria. The phylogenetically different those previously reported terrestrial environments. Functional analyses revealed genotypes capable degradation complex organic carbon, denitrification, sulfate reduction, oxidizing sulfide sulfite. Interestingly, there is widespread genetic for secondary metabolite biosynthesis across Gemmatimonadota, which may represent an unexplored source novel natural products. Furthermore, viruses with have "hijack" manipulate host metabolism, including assembly lipopolysaccharide hosts. This diversity advances our understanding globally a variety ecosystems reveals distinctions between communities.

Language: Английский

Citations

6
Mitigated dissemination of antibiotic resistance genes by nanoscale zero-valent iron and iron oxides during anaerobic digestion: Roles of microbial succession and regulation DOI

Panliang Wang,

Dong Wu, Yinglong Su

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 473, P. 134636 - 134636

Published: May 16, 2024

Language: Английский

Citations

5
Phosphorus resource partitioning underpins diversity patterns and assembly processes of microbial communities in plateau karst lakes DOI
Haijun Yuan, Runyu Zhang,

Jingan Chen

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 952, P. 175860 - 175860

Published: Aug. 28, 2024

Language: Английский

Citations

4
Distinct assembly processes and environmental adaptation of abundant and rare archaea in Arctic marine sediments DOI

Jianxing Sun,

Aoqi Zhang,

Zhongxian Zhang

et al.

Marine Environmental Research, Journal Year: 2023, Volume and Issue: 190, P. 106082 - 106082

Published: July 6, 2023

Language: Английский

Citations

10
Vertical variation in prokaryotic community composition and co-occurrence patterns in sediments of the Three Gorges Reservoir, China DOI

Baohong Yu,

Quanchao Zeng, Jinlin Li

et al.

Environmental Research, Journal Year: 2023, Volume and Issue: 237, P. 116927 - 116927

Published: Aug. 19, 2023

Language: Английский

Citations

10
Invisible threats from typical endocrine disrupting compounds in estuarine environments caused by continuing seawater incursion: in-situ evidence of bio-geochemical processes captured by diffusive gradients in thin films DOI
Lipei Du,

Wei Guo,

Dongyue Li

et al.

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123605 - 123605

Published: April 1, 2025

Language: Английский

Citations

0
Functional and taxonomic biogeographical patterns of carbon-cycling microbial communities in farmland ecosystems of Shaanxi Province, China DOI
Pengfei Li,

Zirong Kong,

Yiwei Bai

et al.

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 210, P. 106092 - 106092

Published: April 9, 2025

Language: Английский

Citations

0
New globally distributed bacterial phyla within the FCB superphylum DOI Creative Commons
Xianzhe Gong, Álvaro Rodríguez del Río, Xu Le

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Dec. 6, 2022

Abstract Microbes in marine sediments play crucial roles global carbon and nutrient cycling. However, our understanding of microbial diversity physiology on the ocean floor is limited. Here, we use phylogenomic analyses thousands metagenome-assembled genomes (MAGs) from coastal deep-sea to identify 55 MAGs that are phylogenetically distinct previously described bacterial phyla. We propose these belong 4 novel phyla (Blakebacterota, Orphanbacterota, Arandabacterota, Joyebacterota) a proposed phylum (AABM5-125-24), all them within FCB superphylum. Comparison their rRNA genes with public databases reveals globally distributed different habitats, including marine, freshwater, terrestrial environments. Genomic suggest organisms capable mediating key steps sedimentary biogeochemistry, anaerobic degradation polysaccharides proteins, respiration sulfur nitrogen. Interestingly, code for an unusually high proportion (~9% average, up 20% per genome) protein families lacking representatives databases. Genes encoding hundreds colocalize predicted be involved reduction, nitrogen cycling, energy conservation, organic compounds. Our findings advance diversity, ecological bacteria, potential links between gene metabolic processes oceans.

Language: Английский

Citations

16