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| 題名: | Effects of Wheat Germ Agglutinin and Colchicine on Microtubules of the Mitochondria-rich Cells in Gills and Ca++ Uptake in Tilapia (Oreochromis Mossambicus) Larvae |
| 作者: | Tsai, Jong-Chang;Hwang, P. P. |
| 貢獻者: | 應用運動科學所 |
| 關鍵詞: | mitochondria-rich cell;gill;fish;cytoskeleton;fresh water;confocal microscopy;colchicine;wheat germ agglutinin;ionic regulation;tilapia;Oreochromis mossambicus |
| 日期: | 1998-07
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| 上傳時間: | 2012-04-20T02:21:37Z
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| 出版者: | Company of Biologists |
| 摘要: | The organization of the microtubules and actin filaments in the gills of tilapia (Oreochromis mossambicus) larvae was revealed by confocal microscopy. The fluorescence intensity of the microtubules in the gills was increased by
adding wheat germ agglutinin (WGA, 40 ng ml-1) to the ambient water for 30 min, but the staining pattern of the actin filaments was not changed. The fluorescence intensity of the microtubules in the gills was decreased by treatment with the microtubule-disrupting reagent colchicine at 0.2mmoll-1 for 4 h. WGA treatment concurrently raised Ca2+ influx rates, and the increase was particularly large when the larvae were kept in water with extremely low Ca2+ levels ([Ca2+]=0.002mmoll-1). Colchicine treatment, in contrast, reduced the Ca2+ influx rate. These results indicate that the microtubule network in tilapia gills, particularly in mitochondria-rich cells, could play a critical role in the uptake of Ca2+ in tilapia larvae. |
| 關聯: | Journal of Experimental Biology, 201: 2263-2271 |
| 顯示於類別: | [應用運動科學研究所] 期刊論文
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