Antibacterial activity of synthetic peptide SP1-1 in the presence of tomato apoplastic fluid.

Abstract

<p><i>X</i>. <i>campestris</i> pv <i>vesicatoria</i> (10⁵ cfu/ml) was incubated with 0 or 10 μg/ml of peptide SP1-1 in the presence or absence of 10 μg/ml of tomato apoplastic fluid. Bacterial growth was determined by measuring OD_600nm (OD 0.2 = 10⁸ cfu/ml) 15 hours after APO; tomato apoplastic fluid. Values represent the mean of at least three biological replicates ± standard error of the mean. Asterisks indicate significant different in comparison to the corresponding control treatment, *P<0.05, **P<0.01.</p