National Taiwan Ocean University Institutional Repository:Item 987654321/41575
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题名: Accumulation of nitrate in the tissues of Penaeus monodon following elevated ambient nitrate exposure.
作者: Sha-Yen Cheng;Su-Juen Tsai;Jiann-Chu Chen
贡献者: 國立臺灣海洋大學:環境生物與漁業科學學系
日期: 2001
上传时间: 2017-03-06T01:37:51Z
摘要: Abstract:Penaeus monodon (10.56±0.71 g) exposed individually to 0.026 (control), 0.774, 3.646, 7.004, 21.234 and 36.079 mM nitrate in 25 ppt seawater were examined for nitrate accumulation in hemolymph, gill, eyestalk, heart, foregut, midgut, hepatopancreas and muscle after 1, 3, 6, 12 and 24 h, respectively. Concentration of nitrate in the tissues increased directly with ambient nitrate concentration and exposure time except for muscle. Following 24-h exposure to 3.646 mM nitrate, nitrate concentrations measured in the muscle (0.202 μmol g−1), hepatopancreas (0.330 μmol g−1), heart (0.527 μmol g−1), foregut (0.632 μmol g−1), gill (0.927 μmol g−1), hemolymph (0.946 μmol ml−1), eyestalk (1.214 μmol g−1), and midgut (1.529 μmol g−1), respectively. The concentration of muscle nitrate was the lowest, and the concentration of midgut nitrate was the highest among the tissues tested. P. monodon following exposure to ambient nitrate at 21.234 and 36.079 mM, nitrate accumulation measured in the muscle (0.854 and 0.980 μmol g−1), hepatopancreas (1.139 and 1.552 μmol g−1), heart (1.468 and 1.879 μmol g−1), foregut (2.195 and 3.341 μmol g−1), gill (2.398 and 3.325 μmol g−1), hemolymph (3.327 and 3.948 μmol ml−1), eyestalk (3.461 and 4.264 μmol g−1) and midgut (3.343 and 5.239 μmol g−1), and never reached a plateau after 24 h.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41575
显示于类别:[環境生物與漁業科學學系] 演講及研討會

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