Figure 5
Association of CSS with gastrodermal host lipid bodies. Cup-shaped electron-dense structures that were highly enriched with heterotrophic C and N (cf. Fig. 4) were consistently found next to partially extracted host lipid bodies (A,B) or in direct contact with them (C–E). E shows the formation of a membrane continuity between both structures, despite the distinct separation of the isotopic signal (black arrow in E with 15N-signal as colouration). Areas with extracted lipids consistently showed the presence of residual material (F–H). Intrusion of the host ER membrane into CSS (I). Scale bars are 1 µm (A,C–H) or 500 nm (B,I).
