Environmental and Anthropogenic Factors Shape the Snow Microbiome and Antibiotic Resistome

Sanchez-Cid, Concepcion; Keuschnig, Christoph; Torzewski, Karol; Stachnik, Łukasz; Kępski, Daniel; Luks, Bartłomiej; Nawrot, A.; Niedzielski, Przemysław; Vogel, Timothy M.; Larose, Catherine

doi:10.3389/fmicb.2022.918622

Cited by 6 publications

(1 citation statement)

References 42 publications

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“…Differences in the abundance of ARGs and ARB with soil age between the two glacier forefields with similar soil age profiles (Fig. 3, S1-S5; Table S1-S3) may arise from varying initial levels of AMR (including ARG abundance and microbial diversity) as well as inherent variability in soil characteristics between different glacier forefields (16,27,28). It has been hypothesised that the initial microbial diversity in recently deglaciated soils results from spatial variation in the paleoenvironment before and during glacier formation (29).…”

Section: Microbial Interactions (Competition and Facilitation) Are Im...mentioning

confidence: 99%

Antimicrobial resistance in Arctic soils is mediated by competition and facilitation

Roy,

Dawson,

Bradley

et al. 2023

Preprint

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Antimicrobial resistance (AMR) is widespread in terrestrial ecosystems. However, the natural processes shaping the spatial and temporal dissemination of AMR in soils are not well understood. We aimed to determine whether, how, and why AMR varies in recently deglaciated pioneer and developing Arctic soils. We showed that antibiotic-resistant genes (ARGs), mobile genetic elements (MGEs), and antibiotic-resistant bacteria (ARB) are abundant, exhibit a non-uniform distribution, and generally increase with soil age. Our analyses suggest a strong positive relationship between soil age and ARG and ARB, which we attribute to increased competition between microbes in older soils. We also observed a weak negative relationship between soil age and ARG diversity mediated by soil organic matter – suggesting facilitation due to the alleviation of nutrient limitation. The microbial processes regulating the spread of AMR in Arctic soils may be further susceptible to the effects of future climate change and human activities.TeaserThe spatial and temporal spread of antimicrobial resistance in Arctic soils is dependent on microbial interactions for nutrients

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Section: Microbial Interactions (Competition and Facilitation) Are Im...mentioning

confidence: 99%

Antimicrobial resistance in Arctic soils is mediated by competition and facilitation

Roy,

Dawson,

Bradley

et al. 2023

Preprint

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Quantification of class 1 integrons and characterization of the associated gene cassettes in the high Arctic – Interplay of humans and glaciers in shaping the aquatic resistome

Makowska-Zawierucha

Mokracka

Małecka

et al. 2022

Ecological Indicators

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Lichen-associated microbial members are prevalent in the snow microbiome of a sub-arctic alpine tundra

Touchette,

Gostinčar,

Whyte

et al. 2023

FEMS Microbiology Ecology

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Snow is the largest component of the cryosphere, with its cover and distribution rapidly decreasing over the last decade due to climate warming. It is imperative to characterize the snow (nival) microbial communities to better understand the role of microorganisms inhabiting these rapidly changing environments. Here, we investigated the core nival microbiome, the cultivable microbial members, and the microbial functional diversity of the remote Uapishka mountain range, a massif of alpine sub-arctic tundra and boreal forest. Snow samples were taken over a two-month interval along an altitude gradient with varying degree of anthropogenic traffic and vegetation cover. The core snow alpine tundra/boreal microbiome, which was present across all samples, constituted of Acetobacterales, Rhizobiales and Acidobacteriales bacterial orders, and of Mycosphaerellales and Lecanorales fungal orders, with the dominant fungal taxa being associated with lichens. The snow samples had low active functional diversity, with Richness values ranging from 0 to 19.5. The culture-based viable microbial enumeration ranged from 0 to 8.05 × 103 CFUs/mL. We isolated and whole-genome sequenced five microorganisms which included three fungi, one alga, and one potentially novel bacterium of the Lichenihabitans genus; all of which appear to be part of lichen-associated taxonomic clades.

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Environmental and Anthropogenic Factors Shape the Snow Microbiome and Antibiotic Resistome

Cited by 6 publications

References 42 publications

Antimicrobial resistance in Arctic soils is mediated by competition and facilitation

Antimicrobial resistance in Arctic soils is mediated by competition and facilitation

Quantification of class 1 integrons and characterization of the associated gene cassettes in the high Arctic – Interplay of humans and glaciers in shaping the aquatic resistome

Lichen-associated microbial members are prevalent in the snow microbiome of a sub-arctic alpine tundra

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