2021
DOI: 10.1073/pnas.2105124118
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Methane-derived carbon flows into host–virus networks at different trophic levels in soil

Abstract: The concentration of atmospheric methane (CH4) continues to increase with microbial communities controlling soil–atmosphere fluxes. While there is substantial knowledge of the diversity and function of prokaryotes regulating CH4 production and consumption, their active interactions with viruses in soil have not been identified. Metagenomic sequencing of soil microbial communities enables identification of linkages between viruses and hosts. However, this does not determine if these represent current or histori… Show more

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Cited by 57 publications
(51 citation statements)
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“…Consistent with established patterns for other soil microbes [9], viral community composition tends to vary with soil depth, pH, moisture, and across soil compartments, such as between rhizospheres and bulk soils [30,33,43,57,58,[61][62][63][64][65]. Early evidence also supports reproducible links between viruses and many components of the terrestrial carbon (C) cycle [33,57,64,[66][67][68][69].…”
Section: A Convergence Of Ecoevolutionary Factors Likely Drives Exten...supporting
confidence: 53%
“…Consistent with established patterns for other soil microbes [9], viral community composition tends to vary with soil depth, pH, moisture, and across soil compartments, such as between rhizospheres and bulk soils [30,33,43,57,58,[61][62][63][64][65]. Early evidence also supports reproducible links between viruses and many components of the terrestrial carbon (C) cycle [33,57,64,[66][67][68][69].…”
Section: A Convergence Of Ecoevolutionary Factors Likely Drives Exten...supporting
confidence: 53%
“…Additionally, viruses carrying putative AMGs from nitrogen cycle pathways have been observed in OMZs such as amoC, which encodes for ammonia monooxygenase subunit C involved in nitrification, nirK, which encodes for a Cu-containing nitrite reductase involved in denitrification, and norB, which encodes for a nitric oxide reductase involved in denitrification (Ahlgren et al, 2019;Gazitúa et al, 2021). Finally, viruses carrying the pmoC gene, a subunit of the particulate methane monooxygenase enzyme that catalyzes methane oxidation, have been observed in freshwater lakes (Chen et al, 2020) and soils (Lee et al, 2021). This indicates that viruses have the potential to augment methane oxidation by their methanotrophic hosts, even though they have yet to be observed in OMZs.…”
Section: Virusesmentioning
confidence: 99%
“…For example, viruses have been suggested to affect carbon cycling in thawing permafrost peatlands by preying on methanogens and methanotrophs and by encoding glycoside hydrolases to break down complex carbon into simple sugars [2]. Soil viral activity has been demonstrated [2,5,13], and soil viral communities can be spatially structured [14][15][16]. Despite these emerging ecological patterns, comparisons of soil viral diversity within and across habitats are limited.…”
Section: Introductionmentioning
confidence: 99%