National Taiwan Ocean University Institutional Repository:Item 987654321/26802
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题名: The immune response of white shrimp Litopenaeus vannamei following Vibrio alginolyticus injection
作者: Chang-Che Li;Su-Tuen Yeh;Jiann-Chu Chen
贡献者: NTOU:Department of Aquaculture
國立臺灣海洋大學:水產養殖學系
关键词: Litopenaeus vannamei;Vibrio alginolyticus;Challenge;Haemocyte count;Phenoloxidase activity;Respiratory burst;Superoxide dismutase activity
日期: 2008-12
上传时间: 2011-10-21T02:18:46Z
出版者: Fish & Shellfish Immunology
摘要: Abstract:White shrimp Litopenaeus vannamei injected with saline, and injected with tryptic soy broth (TSB)-grown Vibrio alginolyticus at 1.0 × 105 and 1.8 × 105 colony-forming units (cfu) shrimp−1 were examined for hyaline cell (HC) counts, granular cell (GC) counts, total haemocyte counts (THCs), phenoloxidase (PO) activity, respiratory burst (RB) and superoxide dismutase (SOD) activity after 1–168 h. Shrimp that received no injection served as the control. The shrimps which received V. alginolyticus at both doses showed significant decreases in these parameters after 6–96 h. The values for HC and SOD activity decreased earlier and then RB. The time to cause maximum depletion of haemocytes (haemocytopenia), PO activity, RB, and SOD activity were 12, 72, 48, and 24 h post-injection, respectively. The HC, GC, and RB returned to the original values earlier at 72 h, followed by SOD activity at 96 h, and then PO activity at 168 h post-infection. It was concluded that an injection of V. alginolyticus rapidly reduced the shrimp's immunity by decreasing HC, GC, SOD activity, RB, and PO activity within 3–24 h, followed by a slow recovery during 72–168 h post-injection. Furthermore, white shrimp L. vannamei which received V. alginolyticus showed a 6–9 h later response in PO activity, and a 72–96 h later recovery of PO activity, compared to the responses in RB and SOD activity indicating their roles in shrimp defence and immunity.
關聯: 25(6), pp.853-860
URI: http://ntour.ntou.edu.tw/handle/987654321/26802
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