ID | 47679 |
フルテキストURL | |
著者 |
Tomioka, Kenji
Department of Biology, Faculty of Science, Okayama University
ORCID
Kaken ID
publons
researchmap
Abdelsalam, Salaheldin
Department of Biology, Faculty of Science, Okayama University
|
抄録 | The circadian system of hemimetabolous insects is reviewed in respect to the locus of the circadian clock and multioscillatory organization. Because of relatively easy access to the nervous system, the neuronal organization of the clock system in hemimetabolous insects has been studied, yielding identification of the compound eye as the major photoreceptor for entrainment and the optic lobe for the circadian clock locus. The clock site within the optic lobe is inconsistent among reported species; in cockroaches the lobula was previously thought to be a most likely clock locus but accessory medulla is recently stressed to be a clock center, while more distal part of the optic lobe including the lamina and the outer medulla area for the cricket. Identification of the clock cells needs further critical studies. Although each optic lobe clock seems functionally identical, in respect to photic entrainment and generation of the rhythm, the bilaterally paired clocks form a functional unit. They interact to produce a stable time structure within individual insects by exchanging photic and temporal information through neural pathways, in which
serotonin and pigment-dispersing factor (PDF) are involved as chemical messengers. The mutual interaction also plays an important role in seasonal adaptation of the rhythm.
|
キーワード | circadian system
clock tissue
hemimetabolous insects
optic lobe
|
発行日 | 2004-12
|
出版物タイトル |
Zoological Science
|
巻 | 21巻
|
号 | 12号
|
出版者 | Zoological Society of Japan
|
出版者(別表記) | 日本動物学会
|
開始ページ | 1153
|
終了ページ | 1162
|
ISSN | 0289-0003
|
NCID | AA10545874
|
資料タイプ |
学術雑誌論文
|
言語 |
英語
|
著作権者 | © 2004 Zoological Society of Japan
|
論文のバージョン | publisher
|
査読 |
有り
|
DOI | |
PubMed ID | |
Web of Science KeyUT |