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Figure 1

From: A horizontally acquired expansin gene increases virulence of the emerging plant pathogen Erwinia tracheiphila

Figure 1

Xylem colonization by E. tracheiphila. (a) Visible strain of E. tracheiphila (Wt) oozing from xylem in all vascular bundles of a symptomatic plant after a horizontal stem cross section cut. (b) ×20 confocal microscopy image of a longitudinal section of a symptomatic, E. tracheiphila infected Cucurbita pepo stem. Image is falsely colored so that plant structures are shown in blue and live E. tracheiphila bacterial cells are red.

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