A microcosm study of the survival of Escherichia coli and Salmonella typhimurium in brackish water

Mezrioui, Nour-Eddine; Baleux, B.; Troussellier, Marc

doi:10.1016/0043-1354(94)00188-d

Cited by 66 publications

(47 citation statements)

References 27 publications

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“…In the present study it was observed an enhanced survival of Salmonella in high turbidity environment. These results are consistent with those reported by Mezriqui et al (1995) whom reported the protective effect of high turbidity when UV light action in high turbidity at the lethal action of UV light from sunlight is affected by the high turbidity found in water used for the experiment.…”

Section: Cfu Cfusupporting

confidence: 83%

“…In other words, the increased turbidity improved survival. When organic matter is present in aquatic environments there is a protective effect of bacteria on organic matter, against the direct rays of the sun (radiation, UV light), which coincides with the results obtained by Mezriqui et al (1995) who conducted a study with E. coli and S. Typhimurium in sea water finding that water with higher turbidity contained higher concentrations of bacteria and survived for longer period of time. A similar study in which the survival time was measured at different total suspended solids (TSS) concentrations and different solar radiation, found significant differences in solar radiation with respect to TSS, obtaining that a higher radiation and lower TSS further reducing the survival in stagnant water, finding a relationship between increased bacterial survival and greater amount organic matter with respect to time.…”

Section: 40supporting

confidence: 62%

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Occurrence and Survival of Pathogenic Microorganisms in Irrigation Water

Campo¹,

Martínez-Rodríguez²,

Cháidez³

2012

Irrigation - Water Management, Pollution and Alternative Strategies

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Section: Cfu Cfusupporting

confidence: 83%

Section: 40supporting

confidence: 62%

Occurrence and Survival of Pathogenic Microorganisms in Irrigation Water

Campo¹,

Martínez-Rodríguez²,

Cháidez³

2012

Irrigation - Water Management, Pollution and Alternative Strategies

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“…It also allows for comparisons between the survival of different micro-organisms in different environments as reported by different investigators. However, T 90 estimation is only valid if the rate of cell death can be described by first-order kinetics (Mezrioui et al 1995). In the research presented in this paper, there was a good correlation between observed decreases in bacterial numbers and firstorder fitted lines (Table 1).…”

Section: Discussionmentioning

confidence: 60%

Survival of Listeria monocytogenes in sea water and effect of exposure on thermal resistance

Bremer

Osborne

Kemp

et al. 1998

Journal of Applied Microbiology

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. SM I TH . 1998. Survival, recoverability and sublethal injury of two strains of Listeria monocytogenes, Scott A and an environmental strain KM, on exposure to sea water at 12·8 or 20·8°C was determined using in situ diffusion chambers. Plate counts were used to assess recoverability and injury while 5-cyano-2,3-ditolyl tetrazolium chloride (CTC) reduction was used to determine respiratory activity. T 90 values (times for 10-fold decreases in numbers of recoverable cells) on non-selective medium (trypticase soya agar with 0·6% yeast extract) at 12·8 and 20·8°C were 61·7 and 69·2 h for L. monocytogenes Scott A, and 103·0 and 67·0 h for L. monocytogenes KM, respectively. On selective medium (Oxford agar), T 90 values at 12·8 and 20·8°C were 60·6 and 56·9 h for L. monocytogenes Scott A, and 83·0 and 65·9 h for L. monocytogenes KM, respectively. With Scott A, the percentage of sublethally injured cells at 12·8 and 20·8°C was 1·7 and 17·7%, respectively, while for KM the values were 19·0 and 1·6%, respectively. The fraction of cells reducing CTC but which were not recoverable on plating progressively increased on exposure to sea water. Listeria monocytogenes KM challenged at 58°C showed an apparent increase in heat resistance after exposure to sea water at 20·8°C for 7 d (D 58 2·64 min) compared with before exposure (D 58 1·24). This increase in thermal resistance was not apparent at temperatures greater than 63°C, and analysis of the best-fit regression lines fitted to the thermal data obtained from the two cell populations indicated that their thermal resistance was not significantly different (P × 0·05) over the temperature range tested (58-62°C).

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“…There have been reports of altered bacterial responses in various stresses, such as Mezrioui et al [28], which observed different survival modes when bacteria left stabilization ponds. High survival activity in ponds was followed by low resistance in brackish water and vice versa.…”

Section: Bacterial Response To Environmental Changesmentioning

confidence: 99%

Monitoring the post-irradiation E. coli survival patterns in environmental water matrices: Implications in handling solar disinfected wastewater

Giannakis

Gamo

Darakas

et al. 2014

Chemical Engineering Journal

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In this study, simulated solar disinfection of secondary effluent was followed by dark storage at different temperatures or different receiving water matrices. E. coli illumination was followed by 3-day monitoring of the bacterial population and its adaptation in different temperature conditions in the dark. The subsequent survival was linked to the dose received during exposure to light, and results were obtained on the environmentally induced prolongation of survival, maintenance of population or excessive growth, at 4, 20 and 37˚C, respectively. An additional set of experiments at 20˚C was subjected to dilution in E. coli-free synthetic wastewater, water from Lake Leman, (synthetic) seawater and Mili-Q water. Post-irradiation NOTICE: this is the author's version of a work that was accepted for publication in Chemical Engineering Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemical Engineering Journal [Vol. 253, p. 366-376, October 2014]. DOI: 10.1016DOI: 10. /j.cej.2014 2 monitoring was also conducted, studying 50%, 10% and 1% dilution rates, and the results were attributed to the two parameters of dilution medium and dilution ratio. However, different responses were found based on the acquired dose during pre-treatment. This indicates the importance of the illumination prior to storage, and the preference of bacteria in some matrices over the others. Survival was linked to initial population, dose, dilution and medium; shorter illumination times are to be considered according to the receiving water matrix.

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A microcosm study of the survival of Escherichia coli and Salmonella typhimurium in brackish water

Cited by 66 publications

References 27 publications

Occurrence and Survival of Pathogenic Microorganisms in Irrigation Water

Occurrence and Survival of Pathogenic Microorganisms in Irrigation Water

Survival of Listeria monocytogenes in sea water and effect of exposure on thermal resistance

Monitoring the post-irradiation E. coli survival patterns in environmental water matrices: Implications in handling solar disinfected wastewater

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