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A new strategy of endosymbiont midgut bacteria in ant (Ponerinae)
Authors:F.H. Caetano  F.J. Zara  M.L. Bution
Affiliation:1. Universidade Estadual Paulista (UNESP), Departamento de Biologia, Av. 24 A n. 1515, Rio Claro 13506-900, SP, Brazil;2. Universidade Estadual Paulista (UNESP), Campus Litoral Paulista, São Vicente 11330-900, SP, Brazil;1. KU Leuven, Zoological Institute, Naamsestraat 59, box 2466, B-3000, Leuven, Belgium;2. Institute of Biological Science, University of Malaya, 50603, Kuala Lumpur, Malaysia;3. Faculty of Agriculture, Kagawa University, Ikenobe, Miki, 761-0795, Japan;1. Universidade Estadual Paulista, Instituto de Biociências de Rio Claro, Centro de Estudos de Insetos Sociais/Departamento de Bioquímica e Microbiologia, Brazil;2. Universidade Estadual Paulista, Instituto de Biociências de Rio Claro, Centro de Estudos de Insetos Sociais/Departamento de Biologia, Brazil;3. Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Brazil;1. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, A.A. 7495, Bogotá, Colombia;2. Zoological Institute, K.U. Leuven, Naamsestraat 59, Box 2466, B-3000, Belgium;1. Zoological Institute, University of Leuven, Naamsestraat 59, B-3000 Leuven, Belgium;2. Institute of Biological Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Faculty of Agriculture, Kagawa University, Ikenobe, Miki 761-0795, Japan
Abstract:The location and ultrastructure of bacteria associated with microvilli in the midgut of Odontomachus bauri were examined by transmission electron microscopy. These filamentous type bacteria are the second morphotype described in the midgut of this ant. They colonizes only the ectoperitrophic space, more specifically attaching along microvilli. A thick capsule attaches bacteria to microvilli and protect them from acidic pH and digestive enzymes. Details of the location and association with microvilli are discussed.
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