Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation
Ants are known to use a colony-specific blend of cuticular hydrocarbons (CHCs) as a pheromone to discriminate between nestmates and non-nestmates and the CHCs were sensed in the basiconic type of antennal sensilla (S. basiconica). To investigate the functional design of this type of antennal sensill...
Main Authors: | , , , , , , , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
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Frontiers Media S.A.
2018-09-01
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Series: | Frontiers in Cellular Neuroscience |
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Online Access: | https://www.frontiersin.org/article/10.3389/fncel.2018.00310/full |
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doaj-ddb48e9bc76240e3926dee487e036310 |
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record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yusuke Takeichi Tatsuya Uebi Naoyuki Miyazaki Kazuyoshi Murata Kouji Yasuyama Kanako Inoue Toshinobu Suzaki Hideo Kubo Naoko Kajimura Jo Takano Toshiaki Omori Ryoichi Yoshimura Yasuhisa Endo Masaru K. Hojo Eichi Takaya Satoshi Kurihara Kenta Tatsuta Koichi Ozaki Mamiko Ozaki |
spellingShingle |
Yusuke Takeichi Tatsuya Uebi Naoyuki Miyazaki Kazuyoshi Murata Kouji Yasuyama Kanako Inoue Toshinobu Suzaki Hideo Kubo Naoko Kajimura Jo Takano Toshiaki Omori Ryoichi Yoshimura Yasuhisa Endo Masaru K. Hojo Eichi Takaya Satoshi Kurihara Kenta Tatsuta Koichi Ozaki Mamiko Ozaki Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation Frontiers in Cellular Neuroscience olfactory receptor chemosensillum chemical communication innexin ant ultra-structures |
author_facet |
Yusuke Takeichi Tatsuya Uebi Naoyuki Miyazaki Kazuyoshi Murata Kouji Yasuyama Kanako Inoue Toshinobu Suzaki Hideo Kubo Naoko Kajimura Jo Takano Toshiaki Omori Ryoichi Yoshimura Yasuhisa Endo Masaru K. Hojo Eichi Takaya Satoshi Kurihara Kenta Tatsuta Koichi Ozaki Mamiko Ozaki |
author_sort |
Yusuke Takeichi |
title |
Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation |
title_short |
Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation |
title_full |
Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation |
title_fullStr |
Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation |
title_full_unstemmed |
Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical Simulation |
title_sort |
putative neural network within an olfactory sensory unit for nestmate and non-nestmate discrimination in the japanese carpenter ant: the ultra-structures and mathematical simulation |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Cellular Neuroscience |
issn |
1662-5102 |
publishDate |
2018-09-01 |
description |
Ants are known to use a colony-specific blend of cuticular hydrocarbons (CHCs) as a pheromone to discriminate between nestmates and non-nestmates and the CHCs were sensed in the basiconic type of antennal sensilla (S. basiconica). To investigate the functional design of this type of antennal sensilla, we observed the ultra-structures at 2D and 3D in the Japanese carpenter ant, Camponotus japonicus, using a serial block-face scanning electron microscope (SBF-SEM), and conventional and high-voltage transmission electron microscopes. Based on the serial images of 352 cross sections of SBF-SEM, we reconstructed a 3D model of the sensillum revealing that each S. basiconica houses > 100 unbranched dendritic processes, which extend from the same number of olfactory receptor neurons (ORNs). The dendritic processes had characteristic beaded-structures and formed a twisted bundle within the sensillum. At the “beads,” the cell membranes of the processes were closely adjacent in the interdigitated profiles, suggesting functional interactions via gap junctions (GJs). Immunohistochemistry with anti-innexin (invertebrate GJ protein) antisera revealed positive labeling in the antennae of C. japonicus. Innexin 3, one of the five antennal innexin subtypes, was detected as a dotted signal within the S. basiconica as a sensory organ for nestmate recognition. These morphological results suggest that ORNs form an electrical network via GJs between dendritic processes. We were unable to functionally certify the electric connections in an olfactory sensory unit comprising such multiple ORNs; however, with the aid of simulation of a mathematical model, we examined the putative function of this novel chemosensory information network, which possibly contributes to the distinct discrimination of colony-specific blends of CHCs or other odor detection. |
topic |
olfactory receptor chemosensillum chemical communication innexin ant ultra-structures |
url |
https://www.frontiersin.org/article/10.3389/fncel.2018.00310/full |
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doaj-ddb48e9bc76240e3926dee487e0363102020-11-24T22:22:23ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022018-09-011210.3389/fncel.2018.00310403893Putative Neural Network Within an Olfactory Sensory Unit for Nestmate and Non-nestmate Discrimination in the Japanese Carpenter Ant: The Ultra-structures and Mathematical SimulationYusuke Takeichi0Tatsuya Uebi1Naoyuki Miyazaki2Kazuyoshi Murata3Kouji Yasuyama4Kanako Inoue5Toshinobu Suzaki6Hideo Kubo7Naoko Kajimura8Jo Takano9Toshiaki Omori10Ryoichi Yoshimura11Yasuhisa Endo12Masaru K. Hojo13Eichi Takaya14Satoshi Kurihara15Kenta Tatsuta16Koichi Ozaki17Mamiko Ozaki18Department of Biology, Graduate School of Science, Kobe University, Kobe, JapanDepartment of Biology, Graduate School of Science, Kobe University, Kobe, JapanNational Institute for Physiological Sciences, Okazaki, JapanNational Institute for Physiological Sciences, Okazaki, JapanDivision of Biology, Department of Natural Sciences, Kawasaki Medical School, Kurashiki, JapanResearch Center for Ultra-High Voltage Electron Microscopy, Osaka University, Ibaraki, JapanDepartment of Biology, Graduate School of Science, Kobe University, Kobe, JapanDepartment of Mathematics, Faculty of Sciences, Hokkaido University, Sapporo, JapanGraduate School of Frontier Biosciences, Osaka University, Suita, JapanDepartment of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Kobe, JapanDepartment of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Kobe, JapanDepartment of Applied Biology, Kyoto Institute of Technology, Kyoto, JapanDepartment of Applied Biology, Kyoto Institute of Technology, Kyoto, JapanDepartment of Biology, Graduate School of Science, Kobe University, Kobe, JapanGraduate School of Information Systems, The University of Electro-Communications, Chofu, JapanGraduate School of Information Systems, The University of Electro-Communications, Chofu, Japan0Department of Biological Science, Faculty of Life and Environmental Science, Shimane University, Matsue, Japan0Department of Biological Science, Faculty of Life and Environmental Science, Shimane University, Matsue, JapanDepartment of Biology, Graduate School of Science, Kobe University, Kobe, JapanAnts are known to use a colony-specific blend of cuticular hydrocarbons (CHCs) as a pheromone to discriminate between nestmates and non-nestmates and the CHCs were sensed in the basiconic type of antennal sensilla (S. basiconica). To investigate the functional design of this type of antennal sensilla, we observed the ultra-structures at 2D and 3D in the Japanese carpenter ant, Camponotus japonicus, using a serial block-face scanning electron microscope (SBF-SEM), and conventional and high-voltage transmission electron microscopes. Based on the serial images of 352 cross sections of SBF-SEM, we reconstructed a 3D model of the sensillum revealing that each S. basiconica houses > 100 unbranched dendritic processes, which extend from the same number of olfactory receptor neurons (ORNs). The dendritic processes had characteristic beaded-structures and formed a twisted bundle within the sensillum. At the “beads,” the cell membranes of the processes were closely adjacent in the interdigitated profiles, suggesting functional interactions via gap junctions (GJs). Immunohistochemistry with anti-innexin (invertebrate GJ protein) antisera revealed positive labeling in the antennae of C. japonicus. Innexin 3, one of the five antennal innexin subtypes, was detected as a dotted signal within the S. basiconica as a sensory organ for nestmate recognition. These morphological results suggest that ORNs form an electrical network via GJs between dendritic processes. We were unable to functionally certify the electric connections in an olfactory sensory unit comprising such multiple ORNs; however, with the aid of simulation of a mathematical model, we examined the putative function of this novel chemosensory information network, which possibly contributes to the distinct discrimination of colony-specific blends of CHCs or other odor detection.https://www.frontiersin.org/article/10.3389/fncel.2018.00310/fullolfactory receptorchemosensillumchemical communicationinnexinantultra-structures |