RT Journal Article T1 Exploring Honeybee Abdominal Anatomy through Micro-CT and Novel Multi-Staining Approaches. A1 De Paula, Jessica Carreira A1 Doello, Kevin A1 Mesas, Cristina A1 Kapravelou, Garyfalia A1 Cornet-Gómez, Alberto A1 Orantes, Francisco José A1 Martínez, Rosario A1 Linares, Fátima A1 Prados, Jose Carlos A1 Porres, Jesus María A1 Osuna, Antonio A1 de Pablos, Luis Miguel K1 Micro-CT K1 abdomen K1 bee K1 midgut K1 stain AB Continuous improvements in morphological and histochemical analyses of Apis mellifera could improve our understanding of the anatomy and physiology of these insects at both the cellular and tissue level. In this work, two different approaches have been performed to add new data on the abdomen of worker bees: (i) Micro-computed tomography (Micro-CT), which allows the identification of small-scale structures (micrometers) with adequate/optimal resolution and avoids sample damage and, (ii) histochemical multi-staining with Periodic Acid-Schiff-Alcian blue, Lactophenol-Saphranin O and pentachrome staining to precisely characterize the histological structures of the midgut and hindgut. Micro-CT allowed high-resolution imaging of anatomical structures of the honeybee abdomen with particular emphasis on the proventriculus and pyloric valves, as well as the connection of the sting apparatus with the terminal abdominal ganglia. Furthermore, the histochemical analyses have allowed for the first-time description of ventricular telocytes in honeybees, a cell type located underneath the midgut epithelium characterized by thin and long cytoplasmic projections called telopodes. Overall, the analysis of these images could help the detailed anatomical description of the cryptic structures of honeybees and also the characterization of changes due to abiotic or biotic stress conditions. SN 2075-4450 YR 2022 FD 2022-06-18 LK http://hdl.handle.net/10668/21218 UL http://hdl.handle.net/10668/21218 LA en DS RISalud RD Apr 11, 2025