Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils
Abstract Antimicrobial resistance (AMR) in soil is an ancient phenomenon with widespread spatial presence in terrestrial ecosystems. However, the natural processes shaping the temporal dissemination of AMR in soils are not well understood. We aimed to determine whether, how, and why AMR varies with...
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2025-01-01
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| Series: | BMC Microbiology |
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| Online Access: | https://doi.org/10.1186/s12866-025-03745-7 |
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| author | Shamik Roy Robin A. Dawson James A. Bradley Marcela Hernández |
| author_facet | Shamik Roy Robin A. Dawson James A. Bradley Marcela Hernández |
| author_sort | Shamik Roy |
| collection | DOAJ |
| description | Abstract Antimicrobial resistance (AMR) in soil is an ancient phenomenon with widespread spatial presence in terrestrial ecosystems. However, the natural processes shaping the temporal dissemination of AMR in soils are not well understood. We aimed to determine whether, how, and why AMR varies with soil age in recently deglaciated pioneer and developing Arctic soils using a space-for-time approach. Specifically, we assess how the magnitude and spread of AMR changes with soil development stages, including antibiotic resistance genes (ARGs), mobile genetic elements (MGEs), and antibiotic-resistant bacteria (ARB). We showed that ARGs, MGEs, and ARB are present, and exhibit a non-uniform distribution in the developing soils. Their abundance generally increases with soil age but at different rates overall and across different glacier forefields. Our analyses suggest a strong positive relationship between soil age and ARGs and ARB, which we attribute to increased competition between microbes in older soils. We also observed a strong negative relationship between soil age and ARG diversity mediated by soil organic matter – suggesting facilitation due to the alleviation of nutrient limitation. These contrasting results suggest that both competition and facilitation can regulate AMR spread through time in the Arctic, but competition might be the stronger determinant of AMR spread. |
| format | Article |
| id | doaj-art-046fbae57f4d460cbec0841fc0205588 |
| institution | Kabale University |
| issn | 1471-2180 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | BMC |
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| series | BMC Microbiology |
| spelling | doaj-art-046fbae57f4d460cbec0841fc02055882025-02-02T12:11:16ZengBMCBMC Microbiology1471-21802025-01-0125111410.1186/s12866-025-03745-7Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soilsShamik Roy0Robin A. Dawson1James A. Bradley2Marcela Hernández3School of Biological Sciences, University of East AngliaSchool of Biological Sciences, University of East AngliaAix Marseille Univ, Université de Toulon, CNRS, IRD, MIOSchool of Biological Sciences, University of East AngliaAbstract Antimicrobial resistance (AMR) in soil is an ancient phenomenon with widespread spatial presence in terrestrial ecosystems. However, the natural processes shaping the temporal dissemination of AMR in soils are not well understood. We aimed to determine whether, how, and why AMR varies with soil age in recently deglaciated pioneer and developing Arctic soils using a space-for-time approach. Specifically, we assess how the magnitude and spread of AMR changes with soil development stages, including antibiotic resistance genes (ARGs), mobile genetic elements (MGEs), and antibiotic-resistant bacteria (ARB). We showed that ARGs, MGEs, and ARB are present, and exhibit a non-uniform distribution in the developing soils. Their abundance generally increases with soil age but at different rates overall and across different glacier forefields. Our analyses suggest a strong positive relationship between soil age and ARGs and ARB, which we attribute to increased competition between microbes in older soils. We also observed a strong negative relationship between soil age and ARG diversity mediated by soil organic matter – suggesting facilitation due to the alleviation of nutrient limitation. These contrasting results suggest that both competition and facilitation can regulate AMR spread through time in the Arctic, but competition might be the stronger determinant of AMR spread.https://doi.org/10.1186/s12866-025-03745-7Antimicrobial resistanceMetagenomicsMicroorganismsSoil developmentArctic soils |
| spellingShingle | Shamik Roy Robin A. Dawson James A. Bradley Marcela Hernández Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils BMC Microbiology Antimicrobial resistance Metagenomics Microorganisms Soil development Arctic soils |
| title | Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils |
| title_full | Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils |
| title_fullStr | Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils |
| title_full_unstemmed | Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils |
| title_short | Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils |
| title_sort | prevalence and dynamics of antimicrobial resistance in pioneer and developing arctic soils |
| topic | Antimicrobial resistance Metagenomics Microorganisms Soil development Arctic soils |
| url | https://doi.org/10.1186/s12866-025-03745-7 |
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