Repeated treatments of ciprofloxacin and kresoxim-methyl alter their dissipation rates, biological function and increase antibiotic resistance in manured soil

Fang, Hua; Han, Lingxi; Zhang, Houpu; Deng, Yanfei; Ge, Q. X.; Mei, Jiajia; Long, Zhengnan; Yu, Yunlong

doi:10.1016/j.scitotenv.2018.02.116

Cited by 29 publications

(11 citation statements)

References 37 publications

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“…Meanwhile, AMX resistance in the soil significantly increased through positive selection pressure, which is even higher than the risk of antibiotic resistance in feces. The above results were also consistent with the previous studies [4,7,11,17,22,23,26,30,32,36], and fully reflected the existing potential risks and safety threats of the migration and diffusion of antibiotic resistant determinants to deeper soil under the condition of long-term coverage of animal manure in breeding areas of the farm. As shown in Figure 3, the number and resistance ratio of AMX-resistant bacteria in OC samples were significantly higher than those in CT, and AMX resistance gradually increased with the continuous maturation of OC.…”

Section: Risk Assessment Of Antibiotic Resistance In Farm Environment Bacteriasupporting

confidence: 91%

“…Studies have shown that antibiotics, animal-derived bacteria, and their ARGs remain in manure and compost is introduced into the receiving soil with land application, which gradually migrate and spread into deeper soil layers and/or groundwater [4,11,17,23]. This transfer subsequently influences the overall microbial community structure and soil activity, inducing the formation and development of antibiotic resistance in the bacterial community through selection pressure [7,11,22,26,30,32,36], prompting the soil to become a reservoir for ARBs [4,7,30]. Furthermore, ARBs and their genomes from soil or irrigation water can enter the food chain through contaminated plant-derived foods, especially produce that is typically eaten raw, posing a serious threat to animal and human health [5,11,21,23,26,28,30].…”

Section: Introductionmentioning

confidence: 99%

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Microbiological safety and antibiotic resistance risks at a sustainable farm under large-scale open-air composting and composting toilet systems

Liu

Han

et al. 2021

Journal of Hazardous Materials

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This study evaluated the microbial safety and antibiotic resistance risks of a sustainable ecological farm under large-scale open-air composting (OC) and green composting toilet systems (CT). Samples of livestock manure, compost, soil, vegetables, and rainwater were analysed to determine the best treatment of wastes and risk assessment of land application. Results showed that pathogenic bacteria (PB) in livestock manure was significantly greater than that in the surrounding topsoil, while the distribution of bacteria resistant to amoxicillin (AMX), tetracycline (TC), and amoxicillin-tetracycline (AMX-TC) was the opposite through long-term resistance selection pressure. E. coli and Enterococcus were the dominant pathogens in feces and surrounding soil, respectively, and AMX-resistant bacteria dominated soil, compost, and vegetable samples. Overall, while OC may significantly increase antibiotic resistance and effectively remove fecal PB, CT offers faster consumption with greater antibiotic resistant bacteria (ARB) removal but more PB. Moreover, PB and ARB were concentrated in mature compost, soil in planting areas, vegetables, and rainwater. In farm soil and vegetables, AMX-resistant and AMX-TC-resistant bacterial communities displayed similar composition. These findings may explain the main pathways of PB transmission, migration and accumulation of ARB in farms, and the potential risks to human health through the food chain.

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Section: Risk Assessment Of Antibiotic Resistance In Farm Environment Bacteriasupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Microbiological safety and antibiotic resistance risks at a sustainable farm under large-scale open-air composting and composting toilet systems

Liu

Han

et al. 2021

Journal of Hazardous Materials

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“…However, the repeated application of individual pesticides to the same crop is a common agricultural practice, particularly in areas of intensive agriculture (horticultural crops, vine and fruit crops, etc.) (Singh et al, 2002;Fang et al, 2018). The repeated application of pesticides over a long period can influence pesticide dissipation by accelerating biodegradation by adapted soil microorganisms, which may reduce or eliminate the pesticide's efficacy for controlling the target pest, disease or weed (Fang et al, 2015;Wang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Dissipation of herbicides after repeated application in soils amended with green compost and sewage sludge

Pose-Juan

Marín-Benito

Sánchez-Martín

et al. 2018

Journal of Environmental Management

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Certain agricultural practices, such as the repeated application of herbicides or organic amendments to soil, can influence herbicide dissipation. This research has studied the effects of two repeated applications of mesotrione, pethoxamid, and triasulfuron on their dissipation rates in unamended soil (S) and soil amended with green compost (S+GC) or sewage sludge (S+SS). The dissipation experiment has also included an evaluation of the adsorption of the three herbicides by soils and of changes in soil dehydrogenase activity (DHA). The adsorption of the three herbicides by amended soils (Kf range 0.83-2.98) was higher than by unamended soil (Kf range 0.20-0.64). The adsorption coefficients (Kd) of mesotrione and triasulfuron were higher for S+SS, while that of pethoxamid was higher for S+GC, but no relationship between values for the time to 50% degradation (DT) and adsorption coefficients could be determined. The repeated application of mesotrione decreased its dissipation rate in unamended soil (DT increased from 4.75 to 8.15 days) and amended soils (DT increased from 11.7 to 28.2 days in S+GC and from 17.7 to 37.9 in S+SS), whereas the repeated application of pethoxamid increased its dissipation rate in all the treatments, and the rate for triasulfuron increased only in amended soils. The highest DT values for pethoxamid (12.3 days) and triasulfuron (57.1 days) were in S+GC, and the lowest in S+SS (8.35 and 24.7 days). Soil DHA was stimulated by the presence of GC in the soil and by the first application of mesotrione. The second application of mesotrione and pethoxamid positively affected soil DHA, but this did not occur for triasulfuron. The repeated applications of herbicides and soil organic amendments have different effects on herbicide dissipation, adsorption, and soil DHA, and they should be taken into account when assessing soil quality and other potential environmental implications of pesticide use.

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“…Long-term chemical fertilizer use in conventional agriculture systems gives rise to substantial adverse effects on soil quality causing the reduction in the soil biological activities, loss of soil organic matter, and deterioration of the soil structure and nutrient recycling (Bronick and Lal 2005 ; Zhao et al 2016 ). Besides, residues of pesticide can also cause dysbiosis in soil microbial biodiversity affecting the soil health irrespective of the region or soil types (Fang et al 2018 ; Garcia-Delgado et al 2019 ). Soil pH, geographical elevation, and mean annual temperature are some of the main factors that influence bacterial diversity (Lauber et al 2009 ; Shen et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Agricultural management practices influence the soil enzyme activity and bacterial community structure in tea plantations

et al. 2021

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Background The soil quality and health of the tea plantations are dependent on agriculture management practices, and long-term chemical fertilizer use is implicated in soil decline. Hence, several sustainable practices are used to improve and maintain the soil quality. Here, in this study, changes in soil properties, enzymatic activity, and dysbiosis in bacterial community composition were compared using three agricultural management practices, namely conventional (CA), sustainable (SA), and transformational agriculture (TA) in the tea plantation during 2016 and 2017 period. Soil samples at two-months intervals were collected and analyzed. Results The results of the enzyme activities revealed that acid phosphatase, arylsulfatase, β-glucosidase, and urease activities differed considerably among the soils representing the three management practices. Combining the redundancy and multiple regression analysis, the change in the arylsulfatase activity was explained by soil pH as a significant predictor in the SA soils. The soil bacterial community was predominated by the phyla Proteobacteria, Acidobacteria, Actinobacteria, Chloroflexi, and Bacteroidetes in the soil throughout the sampling period. Higher Alpha diversity scores indicated increased bacterial abundance and diversity in the SA soils. A significant relationship between bacterial richness indices (SOBS, Chao and ACE) and soil pH, K and, P was observed in the SA soils. The diversity indices namely Shannon and Simpson also showed variations, suggesting the shift in the diversity of less abundant and more common species. Furthermore, the agricultural management practices, soil pH fluctuation, and the extractable elements had a greater influence on bacterial structure than that of temporal change. Conclusions Based on the cross-over analysis of the bacterial composition, enzymatic activity, and soil properties, the relationship between bacterial composition and biologically-driven ecological processes can be identified as indicators of sustainability for the tea plantation.

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Repeated treatments of ciprofloxacin and kresoxim-methyl alter their dissipation rates, biological function and increase antibiotic resistance in manured soil

Cited by 29 publications

References 37 publications

Microbiological safety and antibiotic resistance risks at a sustainable farm under large-scale open-air composting and composting toilet systems

Microbiological safety and antibiotic resistance risks at a sustainable farm under large-scale open-air composting and composting toilet systems

Dissipation of herbicides after repeated application in soils amended with green compost and sewage sludge

Agricultural management practices influence the soil enzyme activity and bacterial community structure in tea plantations

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