Figure 5
From: Multiple bacterial partners in symbiosis with the nudibranch mollusk Rostanga alisae
Endosymbiotic single bacteria of Rostanga alisae, TEM images. (A) Numerous Single gram-negative bacteria within secondary vacuole (light arrows) in the apical zone of the cytoplasm of the epithelium of the foot. As a result of division (dark arrow indicates a dividing bacterium), bacteriocytes contain two or more bacteria. Cilia (c), phagosome (ph), mitochondria (m), and nucleus (nu) of epithelial cells are visible. (B,C) Cyanobacteria (arrows) in the epithelium of the notum and (D) foot; a developed polysaccharide capsule and concentrically arranged membranes of the thylakoid type (th) are visible. (E) Different morphotypes of cyanobacteria containing inclusions in the intestinal epithelium cells: bacteria with a developed capsule (light arrow); bacteria with a narrow capsule (dark arrow). The apical surface of epithelial cells has microvilli (mv).
