Thirteen-year survival study of an environmentalEscherichia coli in field mini-plots

Sjogren, Robert E.

doi:10.1007/bf01104018

Cited by 27 publications

(18 citation statements)

References 33 publications

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“…Very few studies have shown long-term persistence of E. coli in grassland soils. Sjogren (48) reported that an antibiotic-resistant E. coli strain applied to Podzol field plots survived for 13 years after it was applied at high loading rates in a nutrient broth. In most studies, however, it has been observed that the majority of E. coli cells die rapidly once they are introduced into soil, and a key factor in this may be E. coli's inability to step down its metabolic rate to cope with the low availability of usable carbon in the soil environment (30).…”

Section: Discussionmentioning

confidence: 99%

Long-Term Persistence and Leaching ofEscherichia coliin Temperate Maritime Soils

Brennan

O'Flaherty

Kramers

et al. 2010

Appl Environ Microbiol

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Enteropathogen contamination of groundwater, including potable water sources, is a global concern. The spreading on land of animal slurries and manures, which can contain a broad range of pathogenic microorganisms, is considered a major contributor to this contamination. Some of the pathogenic microorganisms applied to soil have been observed to leach through the soil into groundwater, which poses a risk to public health. There is a critical need, therefore, for characterization of pathogen movement through the vadose zone for assessment of the risk to groundwater quality due to agricultural activities. A lysimeter experiment was performed to investigate the effect of soil type and condition on the fate and transport of potential bacterial pathogens, using Escherichia coli as a marker, in four Irish soils (n ‫؍‬ 9). Cattle slurry (34 tonnes per ha) was spread on intact soil monoliths (depth, 1 m; diameter, 0.6 m) in the spring and summer. No effect of treatment or the initial soil moisture on the E. coli that leached from the soil was observed. Leaching of E. coli was observed predominantly from one soil type (average, 1.11 ؎ 0.77 CFU ml ؊1 ), a poorly drained Luvic Stagnosol, under natural rainfall conditions, and preferential flow was an important transport mechanism. E. coli was found to have persisted in control soils for more than 9 years, indicating that autochthonous E. coli populations are capable of becoming naturalized in the low-temperature environments of temperate maritime soils and that they can move through soil. This may compromise the use of E. coli as an indicator of fecal pollution of waters in these regions.

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Section: Discussionmentioning

confidence: 99%

Long-Term Persistence and Leaching ofEscherichia coliin Temperate Maritime Soils

Brennan

O'Flaherty

Kramers

et al. 2010

Appl Environ Microbiol

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“…This emphasises the importance of hygiene barriers and is consistent with the possibility of resistant E. coli being brought on farm by various 'overland' fomites such as people and wild animals. E. coli are robust, may persist for months or years in the environment [37,38] and be transferred by many fomites such as workers' or animals' feet and vehicle tyres. Therefore, barrier biosecurity measures such as separation from other farms and requirements for visitors are important.…”

Section: Discussionmentioning

confidence: 99%

Farm-level risk factors for fluoroquinolone resistance inE. coliand thermophilicCampylobacterspp. on finisher pig farms

Taylor

Clifton-Hadley²,

Wales³

et al. 2009

Epidemiol. Infect.

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SUMMARYLogistic regression, supported by other statistical analyses was used to explore the possible association of risk factors with the fluoroquinolone (FQ)-resistance status of 108 pig finisher farms in Great Britain. The farms were classified as 'affected' or 'not affected' by FQ-resistant E. coli or Campylobacter spp. on the basis of isolation of organisms from faecal samples on media containing 1 mg.l -1 FQ. The use of FQ was the most important factor associated with finding resistant E. coli and/or Campylobacter, which were found on 79% (FQ-resistant E. coli) and 86% (FQ-resistant Campylobacter) of farms with a history of FQ use. However, resistant bacteria were also found on 19% (FQ-resistant E. coli) and 54% (FQ-resistant Campylobacter) of farms with no history of FQ use. For FQ-resistant E.

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“…In a report showing that E. coli sprinkled over a pastureland could be detected up to 13 years from soil and that they moved down to the subsoil (Sjogren 1995), a very high inoculation level (6 L saturated culture on 1 m 2 field, corresponding to more than lOin CFU per g dry soil) was used. In other field experiments conducted by Temple et al (1980) at a cool mountain side, the number of E. coli decreased very slowly in soil (10 7 to 10 4 CFU per g dry soil in 8 weeks).…”

mentioning

confidence: 99%

Survival ofEscherichia coliin a field amended with cow feces slurry

Ohtomo

Minato

Saitô

2004

Soil Science and Plant Nutrition

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Thirteen-year survival study of an environmentalEscherichia coli in field mini-plots

Cited by 27 publications

References 33 publications

Long-Term Persistence and Leaching ofEscherichia coliin Temperate Maritime Soils

Long-Term Persistence and Leaching ofEscherichia coliin Temperate Maritime Soils

Farm-level risk factors for fluoroquinolone resistance inE. coliand thermophilicCampylobacterspp. on finisher pig farms

Survival ofEscherichia coliin a field amended with cow feces slurry

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