PET微纤维对污泥厌氧消化和胞内抗性基因的影响

The Influence of PET Microfiber on Sludge Anaerobic Digestion and Intracellular Antibiotic Resistant Genes

本文主要研究了新兴污染物PET微纤维对于污泥厌氧消化表观产气和胞内抗性基因丰度的影响。结果表明,PET微纤维的存在对污泥厌氧消化产甲烷没有明显影响,对于常见的胞内抗性基因ereA、sulⅠ、sulⅡ以及tetG的丰度没有显著性影响,经过宏基因等检测分析发现PET微纤维不会引起污泥中胞内主要抗性基因丰度和潜在宿主丰度变化,不会改变污泥内微生物群落结构、物种丰度以及存活状态。

This paper mainly studied the influence of PET microfiber on apparent methane production and intracellular resistance gene abundance in sludge anaerobic digestion. The results showed that with the presence of PET microfiber, no significant effect on methane production and relative abundance of common intracellular resistance genes ereA, sulⅠ, sulⅡ, tetG were observed. Metagenomic analysis showed that did not change the abundance of major intracellular resistance genes and potential hosts in sludge. What’s more, PET microfiber did not change the microbial community structure, species abundance and survival status in sludge neither.