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.
Mortalities in France and Holland.
Necrosis of tissues caused by the infection in the digestive epithelium. Refractile bodiesare strongly eosinophilic in H&E section and stain bright red with Gridley stain