ArticleFrontiers in microbiology2025
Microbial and chemical predictors of methane release from a stratified thermokarst permafrost hotspot.
Article in Frontiers in microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Microbial Metabolic Pathways for Synergistic Biomethane Augmentation and COMicroorganisms · 2026Review
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Authors and funding
14 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Soils are dynamic interfaces that can act as both sources and sinks of methane (CH₄), yet the microbial processes underlying these fluxes remain poorly constrained in current Earth system models-particularly in thawing permafrost regions. Accurately quantifying subsurface microbial activity and its response to environmental variation is essential for improving predictions of CH₄ emissions under shifting temperature regimes. Here, we explore the potential of volatile organic compounds (VOCs) as early chemical indicators of microbial processes driving CH₄ production within a thermokarst-associated CH₄ hotspot. Field surveys at Big Trail Lake, a young thermokarst feature in central Alaska, identified localized CH₄ emission zones. Anaerobic soil laboratory microcosms from 50, 200, and 400 cm depths were incubated at -4 °C, 5 °C, and 12 °C to simulate freeze-thaw transitions. Methane flux increased markedly with temperature, and microbial community shifts revealed
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