Study on Different Types of Haemocytes and Their Behaviour in Insects (Orthoptera) Collected from Navegaon and Tadoba National Park and Its Adjoining Areas

Author(s): Srikanta Guria* and Susraba Chatterjee

Abstract: Insect immunity consists of cellular and humoral reactions. Cellular reactions comprise haemocytes which include phagocytosis, nodulation (haemocyte aggregation) and encapsulation. Morphologically, haemocytes are distinct variety of cells comparable to the vertebrate leukocytes and macrophages. Many researchers categorised the haemocytes of insects (Orthoptera) as prohaemocytes (PRs), plasmatocytes (PLs), coagulocytes (COs), oenocytoids (OEs), podocytes (POs), granulocytes (GRs) and reticular cells (RTs). The aim of present study was morphological characterization of circulating haemocytes in Orthoptera. Grasshoppers were collected from Navegaon and Tadoba National Park and its adjoining areas of Maharashtra, India during educational visit. Prohaemocytes (PRs), plasmatocytes (PLs), granulocytes (GRs), oenocytoids (OEs), podocytes (POs) were categoriged. Haemocyte aggregation and phagocytic behaviour were also noticed. But fundamental studies on insect haemocytes demand more investigations and researches.

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