title: Histological and ultrastructural features of the rectum in Poecilimon cervus Karabağ, 1950 (Orthoptera: Tettigoniidae).
abstract: The morphology and ultrastructure of the rectum in Poecilimon cervus Karabağ, 1950 (Orthoptera, Tettigoniidae) were analyzed by light microscope, scanning (SEM) and transmission electron microscopes (TEM). The rectum is the final part of the digestive tract that plays an important role in water reabsorption in insects and so provides osmoregulation. In the transverse sections, six rectal pads and columnar epithelium can be distinguished. The cuticular intima lines the lumen at the apical side of the epithelium. In the cytoplasm, there are numerous mitochondria, some endocytic vesicles, secreting vesicles whose sizes differ according to the area in the cell, and a nucleus with globular in shape. With this study, we aimed to demonstrate the ultrastructure of the rectum of P. cervus and differences or similarities of with other species.
authors.affiliation: Faculty of Science, Department of Biology, Gazi University, Ankara, 06500, Turkey.
authors.forename: Irmak
authors.initials: I
authors.lastname: Polat
authors.affiliation: Faculty of Science, Department of Biology, Gazi University, Ankara, 06500, Turkey.
authors.forename: Zekiye
authors.initials: Z
authors.lastname: Suludere
authors.affiliation: Faculty of Science, Department of Biology, Gazi University, Ankara, 06500, Turkey.
authors.forename: Selami
authors.initials: S
authors.lastname: Candan
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D004848:Epithelium / Q000648:ultrastructure; D008853:Microscopy / Q000379:methods; D008855:Microscopy, Electron, Scanning / Q000379:methods; D046529:Microscopy, Electron, Transmission / Q000379:methods; D008928:Mitochondria / Q000648:ultrastructure; D009987:Orthoptera / Q000033:anatomy & histology* / Q000166:cytology / Q000648:ultrastructure; D012007:Rectum / Q000033:anatomy & histology / Q000166:cytology / Q000648:ultrastructure
keywords: cytology; digestive system; electron microscope; histology; light microscope