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Fig. 2 | Parasites & Vectors

Fig. 2

From: Native parasite affecting an introduced host in aquaculture: cardiac henneguyosis in the red seabream Pagrus major Temminck & Schlegel (Perciformes: Sparidae) caused by Henneguya aegea n. sp. (Myxosporea: Myxobolidae)

Fig. 2

a Infected heart with distended bulbus arteriosus; note the plasmodium (arrow) at the basis of bulbus arteriosus. b Numerous large white plasmodia inside the ventricle (arrow) containing large numbers of myxosporean spores. c Developing spores of Henneguya aegea n. sp. from a ruptured plasmodium under light microscopy. d Light microscopy of unstained mature H. aegea n. sp. (magnification ×400) (under phase contrast). e Proliferation of melanomacrophage centers in Henneguya-infected kidney (squash mount). f Higher magnification of the macrophage accumulation with H. aegea n. sp. spores. Scale-bars: c, 50 µm; d, 10 µm; e, 20 µm; f, 20 µm

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