Changes in element concentration of field-grown host plants after infection with Xylella fastidiosa.

1n = number of pairs analyzed for each plant species. A pair consisted of a non-infected asymptomatic leaf and a symptomatic leaf infected (confirmed by X. fastidiosa-specific PCR) taken from the same or a neighboring plant.2Metal content determined by ICP-OES. Data represents average and standard error of percentage of changes in elemental composition of infected vs. non-infected leaves.3ND = not determined.