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Basipetal translocation of X. fastidiosa in planta. Maximum distances for wild-type and mutant X. fastidiosa cells were recovered from grapevine regions upstream of the inoculation sites (represented by 0 on the y axis; arrow of illustrated vine) after 11 weeks. The light-gray horizontal band is the zone representing the maximum distance that 0.2-μm fluorescent latex beads traveled passively. Error bars represent standard errors of the means.
