|
Hokkaido University Collection of Scholarly and Academic Papers >
Research Institute for Electronic Science >
Peer-reviewed Journal Articles, etc >
Pheromone Detection by a Pheromone Emitter : A Small Sex Pheromone-Specific Processing System in the Female American Cockroach
| Title: | Pheromone Detection by a Pheromone Emitter : A Small Sex Pheromone-Specific Processing System in the Female American Cockroach |
| Authors: | Nishino, Hiroshi Browse this author →KAKEN DB | | Iwasaki, Masazumi Browse this author | | Mizunami, Makoto Browse this author |
| Keywords: | insects | | macroglomerular complex | | pheromonal communication | | projection neuron | | sexual dimorphism |
| Issue Date: | Mar-2011 |
| Publisher: | Oxford University Press |
| Journal Title: | Chemical Senses |
| Volume: | 36 |
| Issue: | 3 |
| Start Page: | 261 |
| End Page: | 270 |
| Publisher DOI: | 10.1093/chemse/bjq122 |
| PMID: | 21098584 |
| Abstract: | Many animals depend on pheromone communication for successful mating. Sex pheromone in insects is usually released by females to attract males. In American cockroaches, the largest glomerulus (B-glomerulus) in the male antennal lobe (first-order olfactory centre) processes the major component of sex pheromone. Using intracellular recordings combined with fine neuroanatomical techniques, we provide evidence that the female homolog of the male B-glomerulus also acts as a sex pheromone-specific detector. Whereas ordinary glomeruli that process normal environmental odors are innervated by single PNs, the B-glomerulus in both sexes is innervated by multiple PNs, one of which possesses a thicker axon, termed here B-PN. Both soma size and axon diameter were smaller on B-PNs from females compared to B-PNs from males. The female B-PNs also produce fewer terminal arborizations in the protocerebrum than male B-PNs. Termination fields in the lateral protocerebrum of the female B-PN are mostly segregated from those formed by other uniglomerular PNs innervating ordinary glomeruli. Female B-PN activity was greatest in response to sex pheromone but lower than that in the male B-PN. This specific detection system suggests that sex pheromone affects the behavior and/or endocrine system of female cockroaches. |
| Rights: | This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Chemical Senses following peer review. The definitive publisher-authenticated version Chem. Senses (2011) 36 (3): 261-270 is available online at: http://chemse.oxfordjournals.org/content/36/3/261 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/47492 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 西野 浩史
|
