Histopathological findings on innate responses of white spot disease positive Penaeus monodon (Fabricius) under semi-intensive culture

Sahoo, A K and Thakur, P C and Shankar, K M and Mohan, C V and Sharma, S R Krupesha and Corsin, F (2015) Histopathological findings on innate responses of white spot disease positive Penaeus monodon (Fabricius) under semi-intensive culture. Journal of Fish Diseases, 38 (1). pp. 91-95. ISSN 1365-2761

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Abstract

White spot disease (WSD) is caused by white spot syndrome virus (WSSV), which is a bacilliform, non-occluded, enveloped, double-stranded (ds) DNA virus and belongs to the family Nimaviridae and genus Whispovirus (Vlak et al. 2005). In recent years, intensive studies on the virus have been made, particularly with respect to its organization, morphogenesis, pathology and pathogenesis (Escobedo-Bonilla et al. 2008). Shrimps, like other invertebrates, lack a true adaptive immune system but have developed effective mechanisms for detecting and eliminating pathogens, which depend primarily on innate immune system (Loker et al. 2004). Haemocytes constitute the first line of internal defence against invading microorganisms. They are crucial in the immune responses of crustaceans and are capable of cell agglutination, phagocytosis, encapsulation, nodule formation and mediation of cytotoxicity (Soderhall 1999; Johansson et al. 2000).

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