FIG. 2.
Map of the phnAB genomic region and plasmids used for complementation analysis. The vertical arrows in the map of the pqs and phn genes indicate the locations of insertions in strains MP703, MP603, MP604, MP704, MP605, MP710, MP551, and MP562, respectively (reading left to right). The phnA mutation in MP710 is a constructed deletion carrying a Tcr cassette. The chromosomal regions present in recombinant plasmids pLG10, pLG12, pLG14, and pLG16 are shown, with the open triangle indicating the orientation of the Plac promoter in the pUCP18 vector.