Fig. 1From: Wolbachia: endosymbiont of onchocercid nematodes and their vectorsModified from Bergey's Manual of Systematic Bacteriology, volume 2: The Proteobacteria) [221]Wolbachia in an embryo of the nematode Dirofilaria immitis (transmission electron microscopy observation). W: Wolbachia bacteria; n: nucleus; scale bar: 0.6 µm (Photograph of Luciano Sacchi and Claudio Bandi,Back to article page