ArticleApplied microbiology and biotechnology2026
Physiological characterization of anaerobic cometabolic transformation of sulfamethoxazole by Nitratidesulfovibrio vulgaris Hildenborough.
Article in Applied microbiology and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Sulfonamide antibiotics are widely used in medicine and farming and residual amounts end up in wastewater effluents and solids applied as fertilizers in agriculture. Residues could promote antibiotic resistance propagation, especially during activated sludge treatment. We previously reported as a proof of concept that Nitratidesulfovibrio vulgaris Hildenborough (NvH) (formerly Desulfovibrio vulgaris Hildenborough) can transform the sulfonamide antibiotic sulfamethoxazole (SMX) anaerobically. Here, we studied in detail the influence of SMX on the physiology of NvH, the effect of different electron donors on SMX transformation, and the stability of the transformation products (TPs) under anoxic and oxic conditions. SMX transformation was catalyzed by resting cells and no difference was observed between acclimated and non-acclimated cells. Higher SMX transformation activity was observed with higher initial SMX concentrations and with younger cultures in exponential phase. SMX transformation was supported in the presence of lactate, and slowed down when lactate was depleted. When lactate was replaced with H
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