2026-10-14T16:00:59Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.0017b 2026-09-15T13:28:18Z

2026-09-15 Maturity phase is crucial for removing antibiotic resistance genes during composting: novel insights into dissolved organic matter-microbial symbiosis system doi:10.57760/sciencedb.iga.0017b en Composting is widely regarded as an effective method for reducing antibiotic resistance genes (ARGs) in livestock and poultry manure. However, the critical mechanism of ARGs in different composting phase is still unclear. In this study, normal compost and two various rapid composting (without mature phase) were used to analyze the removal of ARGs and the succession of dissolve organic matter (DOM). Compared to normal composting, rapid composting reactivated tetracyclines, sulfonamide, and quinolones resistance genes during the maturation phase and reduced the total ARGs removal rates by 45.58%–57.87%. Humus-like components could inhibit the proliferation of ARGs, and the enrichment of protein-like components increased abundances of Pusillimonas, Persicitalea, and Pseudomonas, indirectly reducing the removal. This study is the first to demonstrate that contribution of DOM and microbial community to ARGs removal, emphasizing the importance of the maturation phase for ARGs elimination. This research provides guidance for producing safe compost products. Compost; Antibiotic resistance genes (A; Mobile genetic elements (MGEs); Excitation-Emission-MatrixSpec; Dissolved organic matter compo; Microbial community structure 白冰 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank