Recovery of viable bacteria was 2.32 log units lower in the
1.0 mM Hx-treated leaves (3.97 log), 1.81 log units lower in the
3.0 mM Hx-treated leaves (4.48 log) and 2.51 log units lower in the
ASM-treated leaves (3.78 log) compared with the NTC leaves (6.29
log) (Table 1).
For subsequent experiments, 1.0 mM Hx was chosen because,
in vitro, this concentration significantly reduced infection and
bacterial population development without causing direct toxicity
to Xcc.