Microbial responses under sunlight-dark conditions accelerate sequestration and transformation of soil biogenic, redox and non-redox components, including As and Hg.

ABSTRACT: Climatic warming and the resulting increase in soil respiration affect the sequestration and transformation of soil components, as well as their transport to the surrounding ecosystems. However, the integrated mechanistic details of these processes remain elusive. Here we apply an extraction protocol that utilizes two sequential extraction techniques to isolate and analyze both dissolved and solid-state soil components and to assess their dark and photoinduced fates under varying temperature conditions, intended to simulate global warming. We observe a net increase in total sulfur (1.2-41.0%), which is ascribed to S sequestration-redox reactions involving both sulfide oxidation to S^o ⇌ SO₄^2- and the reverse (S^2-/S₂^2- ⇌ SO

SUBMITTER: Mohinuzzaman M 

PROVIDER: S-EPMC12540745 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature