抗生素
微生物学
抗生素耐药性
细菌
基因
生物
生物技术
遗传学
作者
Yan Yang,Jiani Wang,Jie Yin,Cui Zhong-liang,Guoxue Li,Guoliang Liu,Jinhui Jiang,Jing Yuan
标识
DOI:10.1016/j.biortech.2024.131420
摘要
The effect of different levels of temperature on resistance genes is not clear in mesophilic static composting (<50 °C). This study conducted livestock manure composting with different temperature gradients from 20 to 50 °C, it was found that the reduction rates of risk rank-I antibiotic resistance genes (from 3 % to 66 %), metal resistance genes (from -50 % to 76 %) and bacterial pathogens (from 72 % to 91 %) all increased significantly with increasing temperature from 20 to 50°C. The vulnerability of bacterial communities increased significantly, and the assembly process of bacterial communities changed from deterministic to stochastic with the increase of composting temperature. Higher temperature could accelerate the removal of thermolabile resistance genes hosts or pathogenic hosts carrying mobile genetic elements by directly or indirectly affecting organic acids content. Therefore, for soil safety, the temperature of the manure recycling process should be increased as much as possible.
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