Table 8 Primer sequences.

cobR¹

5'-GCRTAWGCRAAWARRAARTAYCAYTCWGG-3'

cobF¹

16Sbr²

5'-GGWTAYGTWYTWCCWTGRGGWCARAT-3'

5'-CCGGTCTGAACTCAGATCACGT-3'

16Sar²

5'-CGCCTGTTTATCAAAAACAT-3'

F-cob383R

F-16S142F

5'-TAGGAGTTTTTATAGGGTCTGC-3'

5'-ACCTGAAGTTGTCTCATTTACC-3'

M-cob386R

M-16S103F

5'-GGATAGGAGTTTTTATAGGGTCTGC-3'

5'-GTGAATTTCTTAGAGTGACGATTA-3'