Fig. 1A in Dirty Tricks in the Plankton: Diversity and Role of Marine Parasitic Protists

Fig. 1A–-E. Protistan parasites of marine phytoplankton. A – Amoeba biddulphiae in the diatom Odontella sinensis. Left: recently attached parasite cell. Center: parasitic amoeba inside the host. Rigth: almost empty diatom frustule with protoplasm transformed into 10 amoebae (after Zuelzer 1927); B, C – the stramenopile fungi Lagenisma coscinodisci in the diatom Coscinodiscus sp.; B – host cell protoplasm transformed into parasite hyphae; C – expulsion of parasite swarmer cells. Courtesy of Gerhard Drebes, Plankton*Net Data Provider at the Alfred Wegener Institute for Polar and Marine, http://planktonnet. awi.de; D – Parvilucifera sp. sporangium in a deceased dinoflagellate, Tripos macroceros, from the North Sea; E – Amoebophrya sp. in the dinoflagellate Tripos fusus from the North Sea. Arrows show extreme points of parasite. All scale bars: 50 µm.