Figure 6. Involvement of NocT in the fitness of A. tumefaciens in the plant tumour.
A, nopaline level in plant tumours induced by A. tumefaciens C58-control and nocT derivative; B, cell number of A. tumefaciens C58-control and its nos, nocT and ocd derivatives when they individually colonize plant tumour; C, competitive infection between the A. tumefaciens C58-control strain and nocT or ocd derivatives, all acting as Ti-plasmid donors in the presence of the recipient A. tumefaciens C58.00. Proportion (%) of the Ti-plasmid genotypes among donor strains in the inoculum (0 dpi) and the mature tumours (32 dpi) and among transconjugants (32 dpi) is indicated. Exact Fischer test was used for statistical analysis (p-value thresholds are indicated on the graph).