Histological and histochemical changes in spodoptera litura (Fab.) due to the larval parasitoid peribaea orbata (wied.)
2003
Vijayalakshmi, G. (Hindu College, Guntur (India). Department of Zoology)
Histological changes like hypertrophy of hypodermis, accumulation of haemocytes around cuticle in wound healing process, hypertrophy of tracheae, formation of respiratory funnel, encapsulation of parasitoid, Presence of teratocytes near the parasitoid, degeneration of fat bodies, muscles and spermatogonial cells of testes, vacuolation and loss of cellular identity in salivary gland cells and nervous tissue, cytolysis of malpighian tubules, loosening, clumping and shedding of midgut cells, appearance of extra growth in digestive tract and shrinkage and melanization of host legs were observed in Spodoptera litura (Fab.) due to parasitization by a tachinid parasitoid, Peribaea orbata (Wied.0 The histochemical studies in different tissues of host larvae indicated more or less decrease of proteins, glycogen and lipids due to parasitization.
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