2004
DOI: 10.1128/aem.70.11.6466-6472.2004
|View full text |Cite
|
Sign up to set email alerts
|

Measurements of Fitness and Competition in CommensalEscherichia coliandE. coliO157:H7 Strains

Abstract: Although the main reservoirs for pathogenic Escherichia coli O157:H7 are cattle and the cattle environment, factors that affect its tenure in the bovine host and its survival outside humans and cattle have not been well studied. It is also not understood what physiological properties, if any, distinguish these pathogens from commensal counterparts that live as normal members of the human and bovine gastrointestinal tracts. To address these questions, individual and competitive fitness experiments, indirect ant… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

2
62
0
1

Year Published

2007
2007
2024
2024

Publication Types

Select...
5
2
2

Relationship

0
9

Authors

Journals

citations
Cited by 72 publications
(65 citation statements)
references
References 59 publications
2
62
0
1
Order By: Relevance
“…The total number of growth-supporting substrates was rather similar and showed no obvious negative correlation with the expression of stress defence functions (Table 6). Variation in the raffinose, dulcitol and sucrose phenotypes (Table 3) is consistent with published data for E. coli isolates (Durso et al, 2004;Holt, 1994;Miller & Hartl, 1986). Raffinose and sucrose are two of the few catabolic genes that are easily transferred between E. coli strains (Smith & Parsell, 1975).…”
Section: Physiological Characteristics Of Environmental Isolates In Csupporting
confidence: 78%
“…The total number of growth-supporting substrates was rather similar and showed no obvious negative correlation with the expression of stress defence functions (Table 6). Variation in the raffinose, dulcitol and sucrose phenotypes (Table 3) is consistent with published data for E. coli isolates (Durso et al, 2004;Holt, 1994;Miller & Hartl, 1986). Raffinose and sucrose are two of the few catabolic genes that are easily transferred between E. coli strains (Smith & Parsell, 1975).…”
Section: Physiological Characteristics Of Environmental Isolates In Csupporting
confidence: 78%
“…However, both types of strains had different carbon substrate utilization patterns (Durso et al, 2004): of 95 carbon sources, 27 were oxidized by the commensal E. coli but not by E. coli O157:H7 (Durso et al, 2004). This difference did not affect their growth in common media and also could not be linked to any differential survival in the cow stomach or dung.…”
Section: Presence and Diversity Of An Indigenous Microfloramentioning
confidence: 95%
“…If E. coli O157:H7 would be transmitted directly from human to human, then the mere presence of the virulence genes-next to the core-might have been sufficient for rapid pathogenesis, resulting in O157:H7 outcompeting commensal E. coli. However, outbreaks of E. coli O157:H7 usually come from infested primary food, suggesting that pathogenic and commensal E. coli differ in other traits that affect their survival, allowing E. coli O157:H7 to be (overall) successful (Durso et al, 2004).…”
Section: Presence and Diversity Of An Indigenous Microfloramentioning
confidence: 99%
“…80) . E. coli strains also vary in other phenotypic characteristics, such as carbon utilization patterns, antibiotic resistance profiles, flagellar motility, ability to form biofilms, and the ability to cause diseases 3,35,60,79,119) . This is probably due to gene mutations and acquisition of new genes via plasmid-or phage-mediated horizontal gene transfer.…”
Section: )mentioning
confidence: 99%