Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.jhazmat.2025.140787 |
Licence  |
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| Title (Primary) | Temporal decoupling of metal(loid) binding and microbial adaptation in arsenic and cadmium contaminated soils under changing climate |
| Author | Wang, T.; Roschke, C.; Sánchez, N.; Duncan, A.H.; Namayandeh, A.; Fendorf, S.; Nunes da Rocha, U.; Muehe, E.M. |
| Source Titel | Journal of Hazardous Materials |
| Year | 2026 |
| Department | COMPBC; AME |
| Volume | 501 |
| Page From | art. 140787 |
| Language | englisch |
| Topic | T7 Bioeconomy |
| Supplements | Supplement 1 |
| Keywords | Partitioning; Acclimatization; Climate change; Soil microbial adaption; Combined stress |
| Abstract | Soil
contamination with metals and metalloids is a growing environmental
concern, impacting soil ecosystems. Exogenous metal(loid)s are retained
in the soil matrix via adsorption, structural incorporation, and
precipitation, imposing stress on soil microbiomes, potentially
influenced by climate. It remains unclear whether introduced
metal(loid)s bind similarly to native ones and how quickly soil
microbiomes adapt under today’s and future climate conditions. We
incubated soils spiked with 0.7 mg kg−1 cadmium or 15 mg kg−1 arsenic under today’s and future climate scenarios (IPCC SSP 3–7.0: +400 ppmv CO2,
+4°C). After 38 days, spiked As and Cd did not integrate into soil
minerals like native counterparts but preferentially associated with
more reactive minerals. Spiked As became more recalcitrant over time, an
effect enhanced under future conditions. Spiked Cd remained reactive
during incubation, independent of climate conditions. Prokaryotic
abundances increased faster in metal(loid)-spiked soil under future
conditions with distinct soil prokaryotic community structures emerging
in response to metal(loid)s and climate. Despite this, key functions
like Fe(III) reduction were maintained. Communities nearly stabilized
within 38 days across climate conditions. These findings suggest that
exogenous metal(loid)s may require years to achieve native-level
binding, while soil microbes adapt functionally within weeks, even under
climate change. |
| Wang, T., Roschke, C., Sánchez, N., Duncan, A.H., Namayandeh, A., Fendorf, S., Nunes da Rocha, U., Muehe, E.M. (2026): Temporal decoupling of metal(loid) binding and microbial adaptation in arsenic and cadmium contaminated soils under changing climate J. Hazard. Mater. 501 , art. 140787 10.1016/j.jhazmat.2025.140787 |
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