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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/26643

Title: The immune response of white shrimp Penaeus vannamei and its susceptibility to Vibrio alginolyticus under sulfide stress
Authors: Si-Wei Hsu;Jiann-Chu Chen
Contributors: NTOU:Department of Aquaculture
Keywords: Penaeus vannamei;Vibrio alginolyticus;Sulfide;Challenge;Haemocyte count;Phenoloxidase activity;Respiratory burst;Phagocytic activity
Date: 2007-10-03
Issue Date: 2011-10-21T02:18:09Z
Publisher: Aquaculture
Abstract: Abstract:White shrimp Penaeus vannamei held in 34‰ seawater were injected with tryptic soy broth (TSB)-grown Vibrio alginolyticus (6.2 × 105 cfu shrimp− 1), and then placed in water containing different concentrations of sulfide at 0 (control), 48, 111, 492 and 1026 μg l− 1, respectively. After 48–144 h, mortality of V. alginolyticus-injected shrimp exposed to = or > ∼ 490 μg l− 1 sulfide was significantly higher than that in the control solution. In another experiment, P. vannamei which had been exposed to 0, 49, 105, 488 and 967 μg l− 1 sulfide for 6, 12, 24 and 48 h were examined for immune parameters, phagocytic activity and clearance efficiency of V. alginolyticus. Sulfide concentrations = or > ∼ 490 μg l− 1 for 24 h resulted in decreased hyaline cell count, total haemocyte count, phenoloxidase activity, phagocytic activity and bacterial clearance efficiency, whereas a sulfide concentration at = > ∼ 490 μg l− 1 for 24 h caused a significant increase in respiratory burst and superoxide dismutase activity of P. vannamei. It is concluded that concentrations of sulfide = or > ∼ 490 μg l− 1 increased the susceptibility of P. vannamei against V. alginolyticus infection by a depression in immune ability.
Relation: 271(1-4), pp.61-69
URI: http://ntour.ntou.edu.tw/handle/987654321/26643
Appears in Collections:[水產養殖學系] 期刊論文

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