Exploring the Impact of Biochar on Antibiotics and Antibiotics Resistance Genes in Pig Manure Aerobic Composting Through Untargeted Metabolomics and Metagenomics
This study investigated the effect of biochar on antibiotics and antibiotic resistance genes (ARGs) during aerobic composting of pig manure. First, the composition and content of antibiotics in the manure were determined qualitatively and quantitatively. Biochar promoted the degradation of these antibiotics (oxytetracycline, chlortetracycline, and tetracycline). The relative abundance (RA) of antibiotic-resistant bacteria carrying ARGs accounted for about 29.32% of the total bacteria. Firmicutes and Actinomycetes were dominant phylum-level bacteria at the early and late stages of composting, respectively. Biochar decreased the total RA of ARGs by 16.83%±4.10% was decreased by biochar. tetW and tetL, closely related to tetracycline resistance, were significantly diminished during aerobic composting, and biochar was able to promote this removal. Biochar enhanced RAs of Mycobacterium tuberculosis kasA mutant. RAs of ARGs related to antibiotic efflux pumps, such as baeS and arlS, remained at a high level. Conclusively, biochar promotes degradation of antibiotics and removal of ARGs
Year of publication: |
[2022]
|
---|---|
Authors: | He, Xueqin ; Xiong, Jinpeng ; Yang, Zengling ; Han, Lujia ; Huang, G.Q |
Publisher: |
[S.l.] : SSRN |
Saved in:
freely available
Saved in favorites
Similar items by person
-
On-line measurement of proximates and lignocellulose components of corn stover using NIRS
Xue, Junjie, (2015)
-
Prediction of heating value of straw by proximate data, and near infrared spectroscopy
Huang, Caijin, (2008)
-
Prediction of heating value of straw by proximate data, and near infrared spectroscopy
Huang, Caijin, (2008)
- More ...