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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Innate Immun. 2016 Nov 24;23(2):111–127. doi: 10.1177/1753425916679255

Figure 5.

Figure 5

TEM of C. elegans fed live C. burnetii. After 6 d on a live C. burnetii diet, cross-sections of infected nematodes (a) at low magnification (1,500×) showed a distended intestinal lumen packed with bacteria. Apical membranes of two enterocytes delineate the intestinal lumen boundary, here outlined with a dashed line, showing intestinal distension. A structure resembling an Elb is boxed and magnified as inset. (b) At higher magnification (20,000×), numerous intact C. burnetii were observed in intimate contact with enterocytes, and the microvillar boarder appeared to be shortened and effaced. C. burnetii with distended nucleoids (arrows) were an indicator of C. burnetii vegetative cells, and were intact within the intestinal lumen. IL: intestinal lumen; Ps: pseudocoelom; BL: basal lamina; AM: apical membrane; Mv: microvilli.