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Fig. 3 | Parasites & Vectors

Fig. 3

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. 3

a Developed plasmodium containing a large number of developing spores in the bulbus arteriosus of the affected fish (Resin embedded tissue; methylene blue/azure II/basic fuchsin staining). b Intact plasmodia of the parasite in the bulbus arteriosus (paraffin-embedded tissue; H&E staining) with broad eosinophilic capsule (arrow). c Developing spores of Henneguya aegea n. sp. from the heart at higher magnification showing the dark-stained pyriform polar capsules (resin-embedded tissue; methylene blue/azure II/basic fuchsin staining). d Capsule of the plasmodium with ellipsoid clearer areas indicating pinocytotic channels (arrow). e Papilliform proliferated intima (arrows) of a large blood vessel wall in the heart. f Proliferation of the intima of the blood vessels in the spleen obstructing the lumen (arrow). Scale-bars: a, 100 µm; b, 200 µm; c, 10 µm; d, 40 µm; e, 40 µm; f, 20 µm

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Parasites & Vectors

ISSN: 1756-3305

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