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タイトルヨミ
ホンベラ セキショクソホウ ノ シキソ カリュウ ウンドウ ノ アドレナリンセイ チョウセツ キコウ
日本語以外のタイトル
Adrenergic Mechanisms Controlling Pigment Movements in Erythrophores of Halichoeres tenuispinnis
ファイル
言語
英語
著者
伊賀 哲郎
伊野 陽子
内容記述(抄録等)
Erythrophores in isolated scales of the motleystripe rainbowfish, Halichoeres tenuispinnis, assumed an unstable state in physiological saline solution, changing irregularly their state into a half-aggregated state. The present paper described a method for studying physiological responses of chromatophores that failed to keep a stable state of pigment granules in a physiological saline solution and, using this method, adrenergic regulation of movements of erythrophores in Halichoeres tenuispinnis was investigated. The erythrophores maintained the dispersed state in the saline solution for at least 30 min by pretreatment with isoproterenol (10-7M). The treatment seemed not to affect their responses. Norepinephrine-induced aggregation was shown to be mediated by alpha2 adrenoceptors on pharmacological ground. It was also shown that the erythrophores possessed beta adrenoceptors mediating the dispersion of the pigment granules and that the stimulation of the beta adrenoceptors was associated with an increase of the cAMP content within the cells.
掲載誌名
島根大学理学部紀要
26
開始ページ
73
終了ページ
84
ISSN
03879925
発行日
1992-12-25
NCID
AN00108106
出版者
島根大学理学部
出版者別表記
The Faculty of Science, Shimane University
資料タイプ
紀要論文
部局
総合理工学部
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