Morphological and Histological Demonstration of Fat Body Cells in Cockroach Blatta orientalis
Project no. 20133 · Status: Kapanmış · 2018
Summary
A fat body is a tissue that consists of one or several cell layers in insects and is equivalent to the liver in vertebrates. This tissue is of mesodermal origin and involved in many metabolic functions. In this research, the fat body distribution was shown for the first time in the shape of the total section in three selected sections (thorax, beginning, and end of the abdomen) developmentally in all stages of Blatta orientalis. Fat body cell types and contents were determined both by histological, histochemical staining, and ultrastructural studies. In fat bodies of B. orientalis, trophocytes, mycetocytes, urocytes, and fat body-related oenocytes were identified. As a result of histochemical staining, larger lipid vacuoles were stored in the peripheral fat body, while more glycogen and protein were accumulated in the perivisceral fat body. In addition, it has been determined that fat body content increases in selected regions of the stages depending on the development. As a result, it is thought that detailed knowledge of fat body structure may direct the insecticide studies for cockroaches that are considered harmful.