Figure 1.

Bacterial cells in tissues and organs of Candidatus Liberibacter asiaticus (CLas)-infected Diaphorina citri adults, immuno-gold labeled with CLas-OmpA antibodies. (A,B) Labeled bacterial cells in the midgut are bound by a double membrane (arrowhead) and were either tubular/filamentous (t), spherical/quasi-spherical (s), or flask-shaped (fl). The boxed area in panel B shows an example of a very large CLas cell. (C) Background gold levels of the midgut tissue in the absence of CLas. (D,E) Immuno-gold labeling of endosymbionts in the bacteriome. Both Carsonella (D) and Profftella (E) only display background gold levels. (A–E, non-osmicated tissues).