Biological degradation and microbial function effect of norfloxacin in a soil under different conditions

Yang, Jun; Ying, Guang‐Guo; Liu, Shan; Zhou, Lijun; Zhao, Jian‐Liang; Tao, Ran; Peng, Ping’an

doi:10.1080/03601234.2012.638886

Cited by 30 publications

(12 citation statements)

References 30 publications

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“…A study by Wang et al (2006) revealed that the half-life of sulfadimethoxine in soil decreased from 10.4 days to 6.9, and again to 4.9 days when the soil moisture content was increased from 15, to 20, and 25%, respectively. A similar effect of temperature was shown in the case of the degradation of norfloxacin (Yang et al, 2012).…”

Section: Fate Of Antibiotics In Soilsupporting

confidence: 73%

Antibiotics in the Soil Environment—Degradation and Their Impact on Microbial Activity and Diversity

2019

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Antibiotics play a key role in the management of infectious diseases in humans, animals, livestock, and aquacultures all over the world. The release of increasing amount of antibiotics into waters and soils creates a potential threat to all microorganisms in these environments. This review addresses issues related to the fate and degradation of antibiotics in soils and the impact of antibiotics on the structural, genetic and functional diversity of microbial communities. Due to the emergence of bacterial resistance to antibiotics, which is considered a worldwide public health problem, the abundance and diversity of antibiotic resistance genes (ARGs) in soils are also discussed. When antibiotic residues enter the soil, the main processes determining their persistence are sorption to organic particles and degradation/transformation. The wide range of DT50 values for antibiotic residues in soils shows that the processes governing persistence depend on a number of different factors, e.g., physico-chemical properties of the residue, characteristics of the soil, and climatic factors (temperature, rainfall, and humidity). The results presented in this review show that antibiotics affect soil microorganisms by changing their enzyme activity and ability to metabolize different carbon sources, as well as by altering the overall microbial biomass and the relative abundance of different groups (i.e., Gram-negative bacteria, Gram-positive bacteria, and fungi) in microbial communities. Studies using methods based on analyses of nucleic acids prove that antibiotics alter the biodiversity of microbial communities and the presence of many types of ARGs in soil are affected by agricultural and human activities. It is worth emphasizing that studies on ARGs in soil have resulted in the discovery of new genes and enzymes responsible for bacterial resistance to antibiotics. However, many ambiguous results indicate that precise estimation of the impact of antibiotics on the activity and diversity of soil microbial communities is a great challenge.

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Section: Fate Of Antibiotics In Soilsupporting

confidence: 73%

Antibiotics in the Soil Environment—Degradation and Their Impact on Microbial Activity and Diversity

2019

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“…Stimulation was also observed in soil microcosms treated with CIP [92] and NOR [74]. In these experiments, nitrification was stimulated only at the lowest doses tested (1 mg· kg…”

Section: Effects Of Antibiotics On Nitrificationmentioning

confidence: 76%

Antibiotics and the Terrestrial Nitrogen Cycle: A Review

DeVries

Zhang

2016

Curr Pollution Rep

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The distribution, fate, and effects of human and veterinary antibiotics in the environment have been the subject of intense investigation for nearly two decades. Studies show that the structure and function of microbial communities in soil and sediment are modified by antibiotic exposure but the resulting impact on biogeochemical processes is poorly understood. This review summarizes the most recent data on the present use and physicochemical properties of human and veterinary antibiotics and provides an overview of their occurrence in soil and sediment. This is followed by an examination of the potential effects of antibiotics on microbial nitrogen turnover and methodological approaches to measuring the effects of antibiotics on nitrification and denitrification. Recent studies identified six major classes of antibiotics in soil and sediment, occurring at concentrations between ng·kg −1 and mg·kg −1. Among these, tetracycline and fluorquinolone antibiotics are the most resistant to degradation and leaching and may accumulate to high concentrations (mg·kg ) but their occurrence is also reported more frequently.Only 26 studies were found that investigated the effects of antibiotics on microbial nitrogen cycling. Some antibiotics had no observable effect on nitrogen redox activity in soil and sediment while others appeared to increase or decrease rates of reaction. This lack of consensus could be attributed to a number of different variables including antibiotic dose, method of antibiotic application, variations in the microbial community structure, or method of quantification. We conclude by recommending that future studies adopt a more comprehensive approach to report on changes of the microbial community structure and function as well as the short-and long-term impacts of antibiotics on the accumulation and loss of nitrogen pollutants.

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“…The relatively short-term persistence of VA in soil might also be related to its solubility in water and its low affinity to adsorption by various components of the soil (Thiele-Bruhn, 2003 ). Antibiotics are subjected to various processes in the soil such as volatilization, transformation or degradation, sorption-desorption, uptake by plants and transport into groundwater and surface waters (Accinelli et al, 2007 ; Lin and Gan, 2011 ; Yang et al, 2012 ; Manzetti and Ghisi, 2014 ; Awad et al, 2016 ; Pan and Chu, 2016 ; Topp et al, 2016 ). However, many factors such as the chemical structure, properties and concentration of an antibiotic, the physico-chemical properties of the soil, the microbial population and the incubation conditions play a major role in the degradation of antibiotics in soil.…”

Section: Discussionmentioning

confidence: 99%

Vancomycin and/or Multidrug-Resistant Citrobacter Freundii Altered the Metabolic Pattern of Soil Microbial Community

et al. 2018

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Despite many studies, our knowledge on the impact of antibiotics and antibiotic-resistant bacteria on the metabolic activity of soil microbial communities is still limited. To ascertain this impact, the community level physiological profiles (CLPPs) and the activity of selected enzymes (dehydrogenase, urease, and phosphatases) in soils treated with vancomycin (VA) and/or multidrug resistant Citrobacter freundii were determined during a 90-day experiment. A multivariate analysis and the resistance (RS)/resilience (RL) concept were used to assess the potential of native microorganisms to maintain their catabolic activity under exposure of VA and/or a high level of C. freundii. In addition, the dissipation rate of VA was evaluated in non-sterile (nsS) and sterile (sS) soils. The results revealed a negative impact of VA on the metabolic activity of soil microorganisms on days 1, 15, and 30 as was showed by a decrease in the values of the CLPP indices (10–69%) and the enzyme activities (6–32%) for treated soils as compared to the control. These observations suggested a low initial resistance of soil microorganisms to VA and/or C. freundii but they were resilient in the long term. Considering the mean values of the RS index, the resistance of measured parameters was categorized in the following order: alkaline phosphatase (0.919) > acid phosphatase (0.899) > dehydrogenase (0.853) > the evenness index (0.840) > urease (0.833) > the Shannon-Wiener index (0.735) > substrate richness (0.485) > the AWCD (0.301). The dissipation process of VA was relatively fast and independent of the concentration used. The DT50 values for VA applied at both concentrations were about 16 days. In addition, the dissipation of VA in nsS was three times faster compared to the dissipation of antibiotic in sS. In conclusion, both CLPP and enzyme activities assays appeared to be useful tool for the determination of disturbances within soil microbial communities and used together may be helpful to understand the changes in their catabolic features. The entry of large quantities of VA and/or C. freundii into soil may temporarily change microbial activity thus pose a potential risk for soil functioning.

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Biological degradation and microbial function effect of norfloxacin in a soil under different conditions

Cited by 30 publications

References 30 publications

Antibiotics in the Soil Environment—Degradation and Their Impact on Microbial Activity and Diversity

Antibiotics in the Soil Environment—Degradation and Their Impact on Microbial Activity and Diversity

Antibiotics and the Terrestrial Nitrogen Cycle: A Review

Vancomycin and/or Multidrug-Resistant Citrobacter Freundii Altered the Metabolic Pattern of Soil Microbial Community

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