Oyster, European Flat
Marteiliasis (Aber disease)
Digestive gland epithelium
Spores characterised by the presence of conspicuous refringent granules which can be demonstrated by various histological techniques.
Serious pathogen of the flat oyster O.edulis. Can lead to significant mortalities.
Necrosis of tissues caused by the infection in the digestive epithelium. Refractile bodies stain red in this section.