Open AccessEffects of antibiotics on anaerobic digestion resistance genes and archaeal communities in cattle manure
Author(s) -
Xin Zhang,
Kaiyu Zhang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/3/032076
Subject(s) - methanosarcina , antibiotics , manure , archaea , anaerobic digestion , biology , anaerobic exercise , microbiology and biotechnology , gene , bacteria , digestion (alchemy) , food science , chemistry , biochemistry , agronomy , genetics , ecology , methane , chromatography , physiology
In this paper, the effects of antibiotics on key enzymes genes of gas production pathway, diversity of microbial communities and ARGs changes during anaerobic digestion of cattle manure are investigated by adding antibiotics of different kinds and concentrations. TYL and SM 2 increased the abundance of Methanosarcina in the acetic acid methanogens pathway by 29.04% and 52.79%, respectively, and CIP decreased the abundance of Methanobrevibacter and Methanosarcina . At the same time, CIP has a strong inhibitory effect on mcrA gene, and its abundance is 49% lower than that of the control group. SM 2 increases ermF gene by 2 logs, and TYL and CIP by 1 log. Sul1 increased by 1-2 logs in the process of adding antibiotics to the anaerobic digestion process.