14 Ergebnisse
Sortierung:
In: Environmental science and pollution research: ESPR, Band 28, Heft 24, S. 30595-30612
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 23, Heft 12, S. 12030-12038
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 237, S. 113555
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 222, S. 112538
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 219, S. 112335
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 165, S. 376-385
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 31, Heft 11, S. 16328-16341
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 197, S. 110567
ISSN: 1090-2414
In: STOTEN-D-23-27864
SSRN
In: Environmental science and pollution research: ESPR, Band 30, Heft 5, S. 12571-12583
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 29, Heft 54, S. 81777-81788
ISSN: 1614-7499
In: Environmental sciences Europe: ESEU, Band 32, Heft 1
ISSN: 2190-4715
Abstract
Background
The prevalence of antibiotic resistance genes (ARGs) in animal manure poses a threat to environmental safety. Organic fertilizers fermented by livestock and poultry manure are directly applied to farmland and have the potential to cause outbreaks of bacterial resistance in agricultural environments. This study investigated the composition of ARGs in different animal manures and their derived organic fertilizers.
Results
The results showed that the abundance of several ARGs, such as sul2, TetB-01, TetG-01 and TetM-01, in organic fertilizer samples was 12–96% lower than that in animal manure. However, the abundance of TetK and ermC was higher in animal manure than in organic fertilizers. No correlation between ARGs and environmental factors such as pH, TN, and antibiotics was observed by redundancy analysis (RDA). Procrustes analysis revealed a significant correlation between bacterial community structures and ARG abundance (r = 0.799, p < 0.01). Nonmetric multidimensional scaling (NMDS) analysis suggested that microorganisms in organic fertilizer may be derived from animal manure. Additionally, the abundance of pathogenic bacteria (especially Actinomadura) would increase rather than decrease in manure compared to organic fertilizer.
Conclusion
The diversity and abundance of most ARGs significantly decreased from animal manure to organic fertilizer. Microorganisms in the prepared organic fertilizer may mainly be inherited from the animal manure. The results also showed that the pathogens in the prepared organic fertilizer would significantly reduce, but would still cause partial pathogen proliferation.
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 269, S. 115773
ISSN: 1090-2414
In: BITE-D-22-07117
SSRN