Occurrence and distribution of antibiotics and corresponding antibiotic resistance genes in different soil types irrigated with treated wastewater

Seyoum, Mitiku Mihiret; Obayomi, Olabiyi; Bernstein, Nirit; Williams, Clinton F.; Gillor, Osnat

doi:10.1016/j.scitotenv.2021.146835

Cited by 35 publications

(11 citation statements)

References 59 publications

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“…As antibiotic reservoirs, soil environments where biological effects occur are a complex array of soil properties mixed with a diverse array of residual antibiotics. Several studies have found that ecological responses are significantly linked to the physical and chemical characteristics of the environment, such as organic matter and soil texture [ 58 ], which may control the initial biological activity of the soil [ 8 , 59 ]. The adsorption of antibiotics on the mineral phase of soil has important consequences, not only for their mobility and stabilization but also for their bioavailability and bioaccessibility during interactions between antibiotics and microorganisms [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

“…As a result, antibiotic molecules are increasingly found in the agricultural environment. One of the most noted consequences of antibiotic pollution is the increased frequency of antibiotic resistance/tolerance profiles, such as antibiotic resistance genes (ARGs) and antibiotic resistance-carrying bacteria (ARBs) [ 6 , 7 , 8 ], which may affect the natural microbial communities and lead to influences on the fundamental ecological processes or the maintenance of soil quality. In fact, antibiotic pollution has been involved in biogeochemical cycling and organic contaminant degradation in direct or indirect ways [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Ecological Responses of Maize Rhizosphere to Antibiotics Entering the Agricultural System in an Area with High Arsenicals Geological Background

Chen

Feng

et al. 2022

IJERPH

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Metal(loid)s can promote the spread and enrichment of antibiotic resistance in the environmental ecosystem through a co-selection effect. Little is known about the ecological effects of entering antibiotics into the environment with long-term metal(loid)s’ resistance profiles. Here, cow manure containing oxytetracycline (OTC) or sulfadiazine (SA) at four concentrations (0 (as control), 1, 10, and 100 mg/kg) was loaded to a maize cropping system in an area with high a arsenicals geological background. Results showed that exogenous antibiotics entering significantly changed the nutrient conditions, such as the concentration of nitrate nitrogen, ammonium nitrogen, and available phosphorus in the maize rhizosphere soil, while total arsenic and metals did not display any differences in antibiotic treatments compared with control. Antibiotics exposure significantly influenced nitrate and nitrite reductase activities to reflect the inhibition of denitrification rates but did not affect the soil urease and acid phosphatase activities. OTC treatment also did not change soil dehydrogenase activities, while SA treatment posed promotion effects, showing a tendency to increase with exposure concentration. Both the tested antibiotics (OTC and SA) decreased the concentration of arsenite and arsenate in rhizosphere soil, but the inhibition effects of the former were higher than that of the latter. Moreover, antibiotic treatment impacted arsenite and arsenate levels in maize root tissue, with positive effects on arsenite and negative effects on arsenate. As a result, both OTC and SA treatments significantly increased bioconcentration factors and showed a tendency to first increase and then decrease with increasing concentration. In addition, the treatments decreased translocation capacity of arsenic from roots to shoots and showed a tendency to increase translocation factors with increasing concentration. Microbial communities with arsenic-resistance profiles may also be resistant to antibiotics entering.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecological Responses of Maize Rhizosphere to Antibiotics Entering the Agricultural System in an Area with High Arsenicals Geological Background

Chen

Feng

et al. 2022

IJERPH

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“…Antibiotic resistance is accelerated by the overuse or misuse of antibiotics by people [24]. Antibiotic and ARG prevalence is being investigated in agricultural soils [25], rivers [26], and oceans [27]. Besides that, antibiotics pollute the estuaries [28].…”

Section: Antibiotic Pollution In Estuariesmentioning

confidence: 99%

Prevalence of microplastics, antibiotic resistant genes and microplastic associated biofilms in estuary - A review

Dhinagaran

2022

Environmental Engineering Research

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The estuarine ecosystem is under threat due to the addition of different anthropogenic pollutants. Among the various pollutants, microplastics(MPs), and antibiotics play a significant role in affecting estuarine organisms and human health by transport through the food chain. In the estuaries, microorganisms, including pathogens, colonise microplastics by the development of biofilms. Estuaries have long been home to MPs, served as novel hubs for the transmission of Antibiotic Resistance Genes (ARGs). As a result of their continual interactions with a variety of aquatic creatures, MP-associated bacterial communities will eventually present a transfer opportunity to organisms that consume MPs. To comprehend the presence of microplastics and ARGs in the estuaries, a thorough review is necessary. This review discusses the various sources of MPs and antibiotic pollution, as well as the transport of ARGs via biofilm formed on MPs. Furthermore, the factors affecting biofilm formation in estuaries are reviewed. In addition, the transport of ARGs by microbial populations within biofilm is discussed. The ARGs are transported into the food chain, which will be a threat to human health. Hence, the occurrence of antibiotic-resistant genes in fish is discussed.

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“…Low concentrations of antibiotics originating from external sources may not necessarily promote microbial diversity and functional stability in actual environments, especially over the long term for microbes that have already developed antibiotic resistance [ 9 , 21 ]. Co-resistance profiles between antibiotics and environmental stressors, such as heavy metals, may mask the effects of antibiotic residues on microbial communities because metals and metalloids existed earlier and their concentrations may be above the permissible limits for soil microorganisms causing significant anthropogenic emissions [ 13 , 22 , 23 ]. Environmental conditions, such as temperature, pH, redox potential, metals, and nutrients, can regulate microbial abundance and population structure, thereby promoting the effects of antibiotics on microbial communities.…”

Section: Introductionmentioning

confidence: 99%

Adaptation of Rhizosphere Microbial Communities to Continuous Exposure to Multiple Residual Antibiotics in Vegetable Farms

Qiu

Chen

Feng

et al. 2023

IJERPH

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The constant application of manure-based fertilizers in vegetable farms leads to antibiotic residue accumulation in soils, which has become a major stressor affecting agroecosystem stability. The present study investigated the adaptation profiles of rhizosphere microbial communities in different vegetable farms to multiple residual antibiotics. Multiple antibiotics, including trimethoprim, sulfonamides, quinolones, tetracyclines, macrolides, lincomycins, and chloramphenicols, were detected in the vegetable farms; the dominant antibiotic (trimethoprim) had a maximum concentration of 36.7 ng/g. Quinolones and tetracyclines were the most prevalent antibiotics in the vegetable farms. The five most abundant phyla in soil samples were Proteobacteria, Actinobacteria, Acidobacteria, Chloroflexi and Firmicutes, while the five most abundant phyla in root samples were Proteobacteria, Actinobacteria, Bacteroidetes, Firmicutes and Myxococcota. Macrolides were significantly correlated with microbial community composition changes in soil samples, while sulfonamides were significantly correlated with microbial community composition changes in root samples. Soil properties (total carbon and nitrogen contents and pH) influenced the shifts in microbial communities in rhizosphere soils and roots. This study provides evidence that low residual antibiotic levels in vegetable farms can shift microbial community structures, potentially affecting agroecosystem stability. However, the degree to which the shift occurs could be regulated by environmental factors, such as soil nutrient conditions.

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Occurrence and distribution of antibiotics and corresponding antibiotic resistance genes in different soil types irrigated with treated wastewater

Cited by 35 publications

References 59 publications

Ecological Responses of Maize Rhizosphere to Antibiotics Entering the Agricultural System in an Area with High Arsenicals Geological Background

Ecological Responses of Maize Rhizosphere to Antibiotics Entering the Agricultural System in an Area with High Arsenicals Geological Background

Prevalence of microplastics, antibiotic resistant genes and microplastic associated biofilms in estuary - A review

Adaptation of Rhizosphere Microbial Communities to Continuous Exposure to Multiple Residual Antibiotics in Vegetable Farms

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