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題名 | Effects of Chemical Sympathectomy on the Melanophores of Tilapia Oreochromis Niloticus=化學性交感神經系統破壞對吳郭魚黑色素胞的影響 |
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作 者 | 蔡錦玲; 王立雪; 張賜玲; | 書刊名 | 臺灣水產學會刊 |
卷期 | 23:4 1996.12[民85.12] |
頁次 | 頁289-296 |
分類號 | 387.1048 |
關鍵詞 | 吳郭魚; 化學性交感神經切除; 黑色素胞; Chemical sympathectomy; Melanophore; Tilapia; |
語文 | 英文(English) |
中文摘要 | 本研究主要探討利用化學物質6-羥基多巴胺(6-hydroxydopamine)破壞交感 神經系統(chemical sympathectomy)對吳郭魚黑色素胞(melanophore)的影響,實驗以長 8-10公分,重8-10公克,且性成熟的雄性吳郭魚(Oreochromis niloticus)為實驗魚種。 實驗前先將吳郭魚置於白色背景環境下馴養兩週,再將魚分為四組,分別再飼養十天。第Ⅰ 組為白色背景環境適應下且交感神經系統完整者(未授予6-hydroxydopamine)第Ⅱ組為白 色背景環境適應下且化學性交感神經系統切除者(投予6-hydroxydopamine,50μg/g BW, 腹腔注射一次),第Ⅲ組為黑色背景環境適應下且交感神經系統完整者(未授予,6- hydroxydopamine),第Ⅳ組為黑色背景環境適應下且化學性交感神經系統切除者(投予6- hydroxydopamine,5Oμg/g BW ,腹腔注射一次)。實驗結果證實在黑色背景環境遇應 下,吳郭魚之頭部及兩側磷片所含黑色素胞數目及尾鰭之黑色素(melanin)顯著多於白色背 景適應下之吳郭魚。而且,經6-hydroxydopamine切除交感神經系統後,白色背景環境適應 下之吳郭魚其頭部,兩例之鱗片所含黑色素胞數目及尾鰭之黑色素均顯著增加,此結果說明 交感神經系統可經由抑制黑色素的形成(melanogenesis)及色素胞的生成(proliferation of melanophores)參與白色背景適應下的形態體色變化(morphological color change)機 轉。 |
英文摘要 | The effect of chemical sympathectomy on the melanophores of tilapia, Oreochromis niloticus, was investigated. The experiments were performed on sexually mature male tilapia which weighted 8-10 g of 8-10 cm long. The specimens were kept in a white background environment for 2 weeks, and then kept in a white or black background for 10 days. Each of white or black background-adaptation group was divided into 6-hydroxydopamine treated (chemical sympathectomy group) and untreated (control group). The number of melanophores per scale on the bead and lateral portions of black background-adaptation tilapia were more than that of white background-adaptation tilapia. The content of melanin in the tail fin of black background-adaptation tilapia was significantly more than that of white background-adaptation tilapia. After the treatment of 6-hydroxydopamine to induce the chemical sympathectomy, the number of melanophores per scale on the head and lateral portions, and the melanin content of the tail fin were increased after the white background-adaptation. These results indicate that the adrenergic transmitter is involved in the morphological color change during the white background-adaptation, to inhibit the melanogenesis and the proliferation of melanophores in tilapia. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。