Transcriptional analysis reveals specific niche factors and response to environmental stresses of enterohemorrhagic Escherichia coli O157:H7 in bovine digestive contents

Table 2 Metal concentrations measured in the filtered bovine digestive contents used to incubate EHEC EDL933

	Metal mean concentration in the contents ± SEM (mg/Kg)
Metal	rumen	Small intestine^a	rectum^b
Co	0.006 ± 0.001	0.018	0.016 ± 0.02
Cr	0.012 ± 0.002	0.015	0.004 ± 0.001
Ni	0.004 ± 0.001	0.031	0.046 ± 0.002
Cu	0.071 ± 0.039	0.376	0.117 ± 0.044
Zn	0.159 ± 0.004	4.139	0.426 ± 0.339
Cd	0.012 ± 0.015	0.005	0.004 ± 0.0004
Pb	0.118 ± 0.015	0.227	0.200 ± 0.036

^a: only one sample of small intestine content was available for metal quantifications
^b: rectum content was diluted 1:1 with buffer
The concentrations were those measured in the DCs used for incubation

ISSN: 1471-2180