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ID 32974
フルテキストURL
著者
Nishino, Hiroshi Laboratory of Neuro-Cybernetics, Research Institute for Electronic Science, Hokkaido University
Sakai, Masaki Department of Biology, Faculty of Science, Okayama University
抄録
The arrangement of neuronal somata and their displacement during joint flexion together with the central projection of the pro- and metathoracic femoral chordotonal organs (FCOs) in the cricket were investigated. The FCO consists of the partially fused ventral and dorsal scoloparia in the proximal femur. The ventrally located neurones (the ventral group) form chainlike rows in which somata became sequentially smallerdistally and project their axons ipsilaterally to the dorsolateral regions, giving off abundant branches and terminating in the region between the dorsal intermediatetract and the ventral intermediate tract in the thoracichemiganglion. The dorsal scoloparium, composed of small,simply aggregated neurones, projects exclusively to the medioventral association centre (mVAC), which is known to be an auditory neuropile. In addition, another neural cluster (the dorsal group) was found in the proximo-dorsal region of the ventral scoloparium. This was composed of simply aggregated neurones with axons giving off sparse branches dorso-laterally and terminating in the peripheral region inside the mVAC. The somata of these three groups were displaced distally by flexion of the femoro-tibial joint: the ventral group showed the greatest displacement, with the degree of movement depending upon soma location, while the dorsal group and dorsal scoloparium neurones were hardly displaced, possibly because of their strong connection with the cuticle. These properties were similar in both the prothoracic FCO and the metathoracic FCO. Taken together, the above points suggest that there is greater functional differentiation of the FCO than was previously thought.
キーワード
Gryllus bimaculatus
femoral chordotonal organ
neural grouping
connective tissues
soma displacement
central
projection.
備考
Published with permission from the copyright holder. This is the institute's copy, as published in Journal of Experimental Biology, October 1997, Volume 200, Issue 20, Pages 2583-2595.
Publisher URL:http://jeb.biologists.org/cgi/reprint/200/20/2583
Direct access to Thomson Web of Science record
Copyright © 1997 The Company of Biologists Limited. All rights reserved.
発行日
1997-10
出版物タイトル
The Journal of Experimental Biology
200巻
20号
出版者
The Company of Biologists Limited
開始ページ
2583
終了ページ
2595
ISSN
0022-0949
NCID
AA00697490
資料タイプ
学術雑誌論文
オフィシャル URL
http://jeb.biologists.org/cgi/reprint/200/20/2583
言語
English
著作権者
The Company of Biologists Limited
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Science KeyUT
Submission Path
biology_general/14