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Proventriculus of Cephalotes ants: A structural and comparative analysis
Authors:Murillo L Bution  FH Caetano  HG Fowler
Institution:1. Universidade Estadual Paulista (UNESP), Departamento de Biologia, Rio Claro 13506-900, SP, Brazil;2. Universidade Estadual Paulista (UNESP), Departamento de Ecologia, Rio Claro 13506-900, SP, Brazil;1. Centre for Social Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark;2. Smithsonian Tropical Research Institute, Ancon, Panama;1. Evolutionary Biology and Ecology, Université Libre de Bruxelles, Avenue Franklin Roosevelt 50, 1050, Brussels, Belgium;2. Center for Microscopy and Molecular Imaging, Université Libre de Bruxelles, Rue Adrienne Bolland 8, B-6041, Gosselies, Belgium;1. Department of Biology, California State University, Northridge, Northridge, CA 91330, USA;2. Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA;1. Department of Entomology and Nematology, One Shields Avenue, University of California at Davis, Davis, CA 95616, USA;2. School of Life Sciences, Social Insect Research Group, Arizona State University, Tempe, AZ 85287, USA;3. Department of Entomology, National Museum of Natural History, Smithsonian Institution, Washington, D.C., USA;4. Department of Entomology, California Academy of Sciences, San Francisco, CA 94118, USA;5. Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA
Abstract:The use of optic microscopy and scanning electron microscopy propitiated the comparative examination of the structure of the proventriculus bulb of Cephalotes atratus, Cephalotes clypeatus and Cephalotes pusillus. This portion of the digestive tract possesses highly sclerotized projections which act in the selection of victuals. This structure is of importance to phylogeny studies and thus was compared with others known species of ants in a dendrogram adapted from Eisner (1957). We did not detect differences among the three studied species in the nature of histochemistry and ultra morphology.
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