Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing

Coliforms are a group of bacteria that since the end of the 1900s’ have been used as an indicator for fecal contamination of water. With advances in microbiology in the 1900’s it became clear that the coliform group is large and varied group of bacteria and not ideal to use as indicator of waterborn...

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Autor principal: Tillgren, Beatrice
Formato: M2
Lenguaje:Inglés
Publicado: SLU/Department of Molecular Sciences 2019
Materias:
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author Tillgren, Beatrice
author_browse Tillgren, Beatrice
author_facet Tillgren, Beatrice
author_sort Tillgren, Beatrice
collection Epsilon Archive for Student Projects
description Coliforms are a group of bacteria that since the end of the 1900s’ have been used as an indicator for fecal contamination of water. With advances in microbiology in the 1900’s it became clear that the coliform group is large and varied group of bacteria and not ideal to use as indicator of waterborne pathogens. However, in lack of better indicator organisms for fecal pollution of water, it is still used. The aims of this study are to give an overview of water quality in the view of global goals, to identify coliform bacteria from water samples and to discuss the results in the light of new achievements in ongoing development of new identification methods. In this study coliforms from collected water samples have been identified and their presumed identity based on growth on chromogenic differential agar have been compared with 16S rDNA-sequencing. Out of 14 samples, 12 where confirmed to be coliforms by the 16S rDNA-sequencing. In addition to identify bacteria from water samples the different detection methods of coliforms are discussed. In relationship to the global goals, which aims to achieve universal access to safe and affordable drinking water by 2030, it is concluded that new, faster and cheaper methods are required to achieve universal basic WASH services by 2030. A suggestion on such a method is Loop-Mediated Isothermal Amplification (LAMP).
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institution Swedish University of Agricultural Sciences
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publishDate 2019
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spelling RepoSLU152662020-01-14T02:02:12Z Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing Tillgren, Beatrice water safety indicator organism microbial detection methods international and national water regulations Coliforms are a group of bacteria that since the end of the 1900s’ have been used as an indicator for fecal contamination of water. With advances in microbiology in the 1900’s it became clear that the coliform group is large and varied group of bacteria and not ideal to use as indicator of waterborne pathogens. However, in lack of better indicator organisms for fecal pollution of water, it is still used. The aims of this study are to give an overview of water quality in the view of global goals, to identify coliform bacteria from water samples and to discuss the results in the light of new achievements in ongoing development of new identification methods. In this study coliforms from collected water samples have been identified and their presumed identity based on growth on chromogenic differential agar have been compared with 16S rDNA-sequencing. Out of 14 samples, 12 where confirmed to be coliforms by the 16S rDNA-sequencing. In addition to identify bacteria from water samples the different detection methods of coliforms are discussed. In relationship to the global goals, which aims to achieve universal access to safe and affordable drinking water by 2030, it is concluded that new, faster and cheaper methods are required to achieve universal basic WASH services by 2030. A suggestion on such a method is Loop-Mediated Isothermal Amplification (LAMP). SLU/Department of Molecular Sciences 2019 M2 eng https://stud.epsilon.slu.se/15266/
spellingShingle water safety
indicator organism
microbial detection methods
international and national water regulations
Tillgren, Beatrice
Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing
title Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing
title_full Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing
title_fullStr Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing
title_full_unstemmed Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing
title_short Coliform as an indicator of waterborne microbial pathogens : identification using DNA sequencing
title_sort coliform as an indicator of waterborne microbial pathogens : identification using dna sequencing
topic water safety
indicator organism
microbial detection methods
international and national water regulations