Quantification of Persistence of Escherichia coli O157 : H7 in Contrasting Soils
Joint Authors
Yang, Ching-Hong
Ibekwe, A. Mark
Grieve, Catherine M.
Papiernik, Sharon K.
Source
International Journal of Microbiology
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-09-08
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Medicine
Abstract EN
Persistence of Escherichia coli (E.
coli) O157:H7 in the environment is a major concern to vegetable and fruit growers where farms and livestock production are in close proximity.
The objectives were to determine the effects of preplant fumigation treatment on the survival of E.
coli O157:H7 in two soils and the effects of indigenous bacterial populations on the survival of this pathogen.
Real-time PCR and plate counts were used to quantify the survival of E.
coli O157:H7 in two contrasting soils after fumigation with methyl bromide (MeBr) and methyl iodide (MeI).
Ten days after fumigation, E.
coli O157:H7 counts were significantly lower (P=.0001) in fumigated soils than in the non-fumigated.
Direct comparison between MeBr and MeI within each soil indicated that these two fumigants showed similar impacts on E.
coli O157:H7 survival.
Microbial species diversity as determined by DGGE was significantly higher in clay soil than sandy soil and this resulted in higher initial decline in population in clay soil than in sandy soil.
This study shows that if soil is contaminated with E.
coli O157:H7, fumigation alone may not eliminate the pathogen, but may cause decrease in microbial diversity which may enhance the survival of the pathogen.
American Psychological Association (APA)
Ibekwe, A. Mark& Papiernik, Sharon K.& Grieve, Catherine M.& Yang, Ching-Hong. 2010. Quantification of Persistence of Escherichia coli O157 : H7 in Contrasting Soils. International Journal of Microbiology،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-470909
Modern Language Association (MLA)
Ibekwe, A. Mark…[et al.]. Quantification of Persistence of Escherichia coli O157 : H7 in Contrasting Soils. International Journal of Microbiology No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-470909
American Medical Association (AMA)
Ibekwe, A. Mark& Papiernik, Sharon K.& Grieve, Catherine M.& Yang, Ching-Hong. Quantification of Persistence of Escherichia coli O157 : H7 in Contrasting Soils. International Journal of Microbiology. 2010. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-470909
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470909