Journal article

Fate of antibiotic resistance genes during high-solid anaerobic co-digestion of pig manure with lignite

Hai-Gang Guo, Qing-Lin Chen, Hang-Wei Hu, Ji-Zheng He

Bioresource Technology | ELSEVIER SCI LTD | Published : 2020

Abstract

Lignite could be used to promote methane production during high-solid anaerobic co-digestion (HS-AcoD) of pig manure, however, the effects of lignite amendment on the fate of ARGs during HS-AcoD are unknown. Here, we explored the influence of lignite (0%, 8%, 16%, 32%, and 64%) on the fate of ARGs during HS-AcoD of pig manure. The results showed that 16% lignite reduced the absolute abundance of ARGs by 28.71% compared with the 0% lignite treatment. Variation partitioning analysis suggested the combined effect of microbial community, mobile genetic elements (MGEs) and environmental factors was the major driver shaping the pattern of ARGs. The potential hosts of ARGs were Bifidobacterium, Lac..

View full abstract

Grants

Awarded by National Natural Science Foundation of China


Awarded by Australian Government Cooperative Research Centres Projects


Awarded by Australia-China Joint Research Centre of Healthy Soils for Sustainable Food Production and Environmental Quality


Awarded by Key Research and Program of Hebei


Funding Acknowledgements

This work was supported by National Natural Science Foundation of China (41907206), Australian Government Cooperative Research Centres Projects (CRCPSEVEN000149), Australia-China Joint Research Centre of Healthy Soils for Sustainable Food Production and Environmental Quality (ACSRF48165), and Key Research and Program of Hebei (18237301D). We acknowledge the Melbourne Trace Analysis for Chemical, Earth and Environmental Sciences (TrACEES), The University of Melbourne for analytical support.