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Figure 4 | BMC Microbiology

Figure 4

From: Ultrastructure and molecular phylogenetic position of a novel euglenozoan with extrusive episymbiotic bacteria: Bihospites bacati n. gen. et sp. (Symbiontida)

Figure 4

Transmission electron micrographs (TEM) of Bihospites bacati n. gen. et sp. showing intracellular bacteria and extrusomes. A. TEM showing a cell containing numerous intracellular bacteria (arrowheads) within vacuoles. B. Transverse TEM showing a battery of extrusomes (arrows) (A, B, bar = 500 nm). C. High magnification TEM of extrusomes showing a dense outer region (arrowhead) and a granular core containing a lighter cruciform structure (white arrow). Black arrow denotes the plasma membrane of the host (bar = 100 nm). D. TEM showing a longitudinal section of an extrusome; the proximal end is indicated with a black arrow. Arrowheads denote rod-shaped bacteria on the cell surface (bar = 500 nm).

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BMC Microbiology

ISSN: 1471-2180

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