Propagation of viral genomes by replicating ammonia-oxidising archaea during soil nitrification

The ISME Journal, Journal Year: 2022, Volume and Issue: 17(2), P. 309 - 314

Published: Nov. 21, 2022

Abstract Ammonia-oxidising archaea (AOA) are a ubiquitous component of microbial communities and dominate the first stage nitrification in some soils. While we beginning to understand soil virus dynamics, have no knowledge composition or activity those infecting nitrifiers their potential influence processes. This study aimed characterise viruses having infected autotrophic AOA two nitrifying soils contrasting pH by following transfer assimilated CO2-derived 13C from host via DNA stable-isotope probing metagenomic analysis. Incorporation into low GC mol% genomes increased buoyant density CsCl gradients but resulted co-migration with dominant non-enriched high genomes, reducing sequencing depth contig assembly. We therefore developed hybrid approach where were assembled subsequent mapping isotopically enriched reads identify AOA. Metagenome-assembled different between represented broad diversity active populations. Sixty-four AOA-infecting viral operational taxonomic units (vOTUs) identified clear relatedness previously characterised prokaryote viruses. These vOTUs also distinct soils, 42% derived hosts. The majority predicted as capable lysogeny auxiliary metabolic genes included an AOA-specific multicopper oxidase suggesting infection may augment copper uptake essential for central functioning. findings indicate be frequent process during physiology activity.

Language: Английский

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Effect of forest soil viruses on bacterial community succession and the implication for soil carbon sequestration

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 892, P. 164800 - 164800

Published: June 10, 2023

Language: Английский

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Estimating the Importance of Viral Contributions to Soil Carbon Dynamics

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(10)

Published: Oct. 1, 2024

ABSTRACT Biogeochemical models for predicting carbon dynamics increasingly include microbial processes, reflecting the importance of microorganisms in regulating movement between soils and atmosphere. Soil viruses can redirect among various chemical pools, indicating a need quantification development soil that explicitly represent viral dynamics. In this opinion, we derive global estimate potentially released from biomass by infections synthesize quantitative budget existing literature includes impacts. We then adapt known mechanisms which influence cycles marine ecosystems into soil‐explicit framework. Finally, explore diversity virus–host interactions during infection conceptualize how mode may impact fate. Our synthesis highlights key knowledge gaps hindering incorporation cycling research generates specific hypotheses to test pursuit better quantifying explain ecosystem‐scale fluxes. The identifying critical drivers behind dynamics, including these elusive but likely pervasive redistribution, becomes more pressing with climate change.

Language: Английский

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Viruses enhance bacterial-mediated arsenic reduction processes by enriching rare functional taxa in flooded paddy soil

Soil Biology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109783 - 109783

Published: March 1, 2025

Language: Английский

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Soil viruses regulate soil nutrient cycling through themselves and their effects on host functioning to impede the growth of continuously planted Casuarina equisetifolia

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 209, P. 106033 - 106033

Published: March 18, 2025

Language: Английский

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