摘要
      研究了抗生素抗性基因（ARGs）在全尺寸食物垃圾（FW）设施中的命运。结果表明，随着ARGs的变化，微生物网络可以自然地分为两组，分别称为ARGs增加组（AI组）和ARGs减少组（AD组）。两组之间的显著差异（即AI组更强的微生物竞争和AD组更强的细菌合作）表明，ARGs随时间的变化是由竞争和合作之间的切换引起的。这些结果表明，微生物竞争可能会增加ARGs的丰度，而合作可能会减少。同时，结构方程模型（SEM模型）表明，腐殖化指数（如GI值）是表征微生物相互作用和ARGs特征的指标。线性模型的结果进一步证实，成熟堆肥（GI值>92.6%）可以降低ARGs的风险。
Abstract
Antibiotic resistance genes (ARGs) fate in a full-scale Food waste (FW) facility was investigated. Results showed that with the changes in ARGs, microbial networks could be naturally divided into two clusters, named as the ARGs increasing group (AI group) and the ARGs decreasing group (AD group). The significant difference between two groups (i.e. stronger microbial competition in the AI group and stronger microbial cooperation in the AD group) implied that the variation in ARGs over time were caused by a switch between competition and cooperation. These results indicated that microbial competition might increase ARGs abundance, while cooperation might reduce it. Meanwhile, structural-equation-model (SEM model) showed that humification indexes (e.g. GI value) was an indicator for characterizing microbial interactions and ARGs. The results of the linear model further confirmed that mature compost (GI values > 92.6 %) could reduce the risk of ARGs.

https://www.sciencedirect.com/science/article/abs/pii/S0960852422011543