Diseases of crustaceans
Histological page for Baculoviral Midgut Gland Necrosis
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Sections of the hepatopancreas (HP) of a postlarval Penaeus japonicus with severe baculoviral midgut gland necrosis (BMN). HP tubules have been mostly destroyed, and the remaining HP tubule epithelial cells contain markedly hypertrophied nuclei that contain a single eosinophilic to pale basophilic, irregularly shaped inclusion body that fills the nucleus. BMNV infected nuclei also display diminished nuclear chromatin, marginated chromatin (which may include remnants of the laterally displaced and flattened nucleolus), and the absence of occlusion bodies that characterise infections by the occluded (SNPV-type or type-A) baculoviruses. Mayer-Bennett H&E. Magnifications: Fig 1 = 1300x; Fig 2 = 1700x Source: DV Lightner |
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Section of the HP from a juvenile P. monodon presenting a dual infection by a BMN-type baculovirus, as suggested by the three cells with the basophilic intranuclear inclusion bodies (small arrow), and by monodon baculovirus (MBV; large arrow). Mayer-Bennett H&E. Magnification 1700x Source: DV Lightner |
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Section of the HP of a P. plebejus displaying several HP cells that contain BMN-type intranuclear inclusion bodies. Mayer-Bennett H&E. Magnification 1700x Source: DV Lightner |
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Low-magnification (700x) view of the hepatopancreas of a giant black tiger prawn (P. monodon) with a severe midgut gland baculovirus infection. Most of the cells display infected nuclei Source: DV Lightner |
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High-magnification (1700x) view of the hepatopancreas of a giant black tiger prawn (P. monodon) with a severe midgut gland baculovirus infection. Most of the cells display infected nuclei Source: DV Lightner |
