Adsorption and survival patterns of<i>Escherichia coli and Streptococcus bovis</i>in six New Zealand soils

Guy, Esme M.; Visser, Trudy A.

doi:10.1080/00288233.1979.10430757

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…Faecal streptococci concentrations decreased at all temperatures over 4 days. Guy & Visser (1979) found that S. bovis survived in sterilised slurries of New Zealand soils for periods ranging from 1 day to 1 month, compared to periods ranging from 25 days to 3 months for E. coli. Slanetz & Bartley (1965) compared the survival of coliforms, faecal coliforms, and faecal streptococci in dialysis bags suspended in sea water.…”

Section: Survival Of Faecal Streptococcimentioning

confidence: 99%

Faecal streptococci as faecal pollution indicators: A review. Part II: Sanitary significance, survival, and use

Sinton

Donnison²,

Hastie

1993

New Zealand Journal of Marine and Freshwater Research

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Some New Zealand regional councils are examining the use of faecal streptococci (or the subset, enterococci) to assist in identifying pollution sources, or as better indicators of disease risk in bathing waters than faecal coliforms. However, in spite of worldwide investigation, faecal streptococci have largely failed to fulfil their potential as pollution source (human versus animal) indicators in receiving waters. Many qualifications accompany the use of faecal coliform : faecal streptococci (FC : FS) ratios, and the species identification approach (using biochemical and DNA-based methods) has produced inconclusive results. Nevertheless, the FC : FS shift method (in which the ratio changes under sample storage) may M92025 Received 6 May 1992 ; accepted 18 January 1993 warrant further investigation. Although reported results vary widely, most studies indicate that faecal streptococci outlive faecal coliforms in receiving waters and are more resistant to sunlight-induced inactivation. USEPA epidemiological studies showed that enterococcus concentrations were better correlated than faecal conform concentrations with disease risk associated with bathing in sewage-polluted waters. These results, which implied that the enterococci better represented viral hazard, led the USEPA to recommend the use of enterococci (or Escherichia coli in freshwaters) as bathing water quality indicators. These recommendations have largely been followed in provisional New Zealand Department of Health guidelines. However, adoption of the USEPA criteria should be approached cautiously, because of doubts about their epidemiological applicability in New Zealand, and a lack of information about streptococcal concentrations and species profiles in local effluents and receiving waters.

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Section: Survival Of Faecal Streptococcimentioning

confidence: 99%

Faecal streptococci as faecal pollution indicators: A review. Part II: Sanitary significance, survival, and use

Sinton

Donnison²,

Hastie

1993

New Zealand Journal of Marine and Freshwater Research

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Interactions of Escherichia coli and Streptococcus bovis with soil clay surfaces as revealed by scanning electron microscopy

Guy¹,

Theng²,

Walker

1980

J Plant Nutrition & Soil

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The attachment of Escherichia coli and Streptococcus bovis of bovine faecal origin to soil clay particles has been examined using scanning electron microscopy. Both organisms produce extracellular polymers through which the cells form bridges to clay surfaces. Differences in the extent of cell‐to‐particle bridging between E. coli‐and S. bovis‐soil complexes are explained in terms of the charge characteristics of the cells and the properties of the exopolymers.

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Movement of the protozoan pathogen Cryptosporidium parvum through three contrasting soil types

1996

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Adsorption and survival patterns ofEscherichia coli and Streptococcus bovisin six New Zealand soils

Cited by 5 publications

References 12 publications

Faecal streptococci as faecal pollution indicators: A review. Part II: Sanitary significance, survival, and use

Faecal streptococci as faecal pollution indicators: A review. Part II: Sanitary significance, survival, and use

Interactions of Escherichia coli and Streptococcus bovis with soil clay surfaces as revealed by scanning electron microscopy

Movement of the protozoan pathogen Cryptosporidium parvum through three contrasting soil types

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