Banu EREN, Fatih BAŞAR, Dilek SAĞIR, Burcu DEMİREL YILMAZ, Sevcan MERCAN, Zafer EREN

THE COMPARATIVE HISTOLOGY OF THE DIGESTIVE TRACT OF ACRIDA ANATOLICA AND PARAPHOLIDOPTERA SPINULOSA (ORTHOPTERA)

Acrida anatolica and Parapholidoptera spinulosa are two different species of migratory caterpiller in the same family and both are threats to agriculture. They areharmful, they migrate and spread wide areas. Herbivorous Acrida anatolicahas strong chewy mouth part, mandibula is considered to be the basic insect mouth type. Parapholidoptera spinulosa a carnivorous species, has a strong chewing gut. The purpose of this study is to compare the structures of the digestive tracts of these species. The digestive tract is divided into three parts, the foregut, midgut, and the hindgut. The prismatic epithelium, external circular and longitudinal muscles, connective tissue, granular structures and peritrophic membrane are the parts of the foregut. The caeceum is also found in this portion.The grasshoppers were collected from the Ondokuz Mayis University Campus and kept in special containers and fed with wheat grass, fresh grass and with different insects. During the dissection process, the digestive tracts were removed and tissues were fixed with 10% buffered neutral formalin solution for 24 hours. After routine histological procedures, the sections were stained withhematoxylin-eosin (H-E). Foregut, midgut and hindgut were comparatively examined in terms of peritrophic membrane, epithelial tissue, cell size, nucleus size, circular and longitudinal muscles, connective tissue, regenerative cells and cellular diversity. The knowledge of grasshopper histology and embryology will contribute to the development of more efficient fighting with grasshoppers and the development of agricultural plant protection products.

Keywords:

Grasshoppers, Digestive tract, Histology, Nutrient sources, Stem cell,

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