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The capability of non-native strains of Bacteroides bacteria to detect bacteriophages as faecal indicators in a tropical area.
- Source :
-
Journal of Applied Microbiology . Dec2014, Vol. 117 Issue 6, p1820-1829. 10p. 1 Chart, 2 Graphs. - Publication Year :
- 2014
-
Abstract
- Aims: To evaluate the use of nonlocal, already-available strains of phages to indicate faecal contamination in Thailand waters. Methods and Results: Phages of Bacteroides fragilis strains ATCC 700786 (RYC2056PH) and ATCC 51477 (HSP40PH) were measured in 71 human and animal wastewater samples in Thailand using a double-layer agar assay. Bacteriophage RYC2056PH was detected at concentrations comparable to representative human and animal wastewater samples from European and Mediterranean countries, with 61·7 and 33·3% above the threshold value of 100 PFU 100 ml-1 in wastewater samples of human and animal origins, respectively. On the other hand, HSP40PH was detected at low concentrations in both human- and animal-polluted wastewaters. Moreover, RYC2056PH was found in 12 canal waters with human-influenced pollution and was not detected in 6 nonpolluted river waters being tested in this study. Conclusions: The presence of RYC2056PH could indicate nonsource-specific faecal contamination in Thailand. Significance and Impact of the Study: This study provided the first evidence that bacteriophages of the European-isolated B. fragilis strain RYC2056 could be used as nonsource-specific faecal indicators in the Southeast Asian region. The results of this study support the worldwide use of Bacteroides phages as faecal indicators. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BACTEROIDES
*BACTERIOPHAGES
*FECAL contamination
*BACTERIAL pollution of water
Subjects
Details
- Language :
- English
- ISSN :
- 13645072
- Volume :
- 117
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 102181946
- Full Text :
- https://doi.org/10.1111/jam.12646