Effects of white spot syndrome virus infection on immuno-enzyme activities and ultrastructure in gills of Cherax quadricarinatus

2012 ◽  
Vol 32 (5) ◽  
pp. 645-650 ◽  
Author(s):  
Dan-Li Wang ◽  
Di Zuo ◽  
Lan-Mei Wang ◽  
Ting Sun ◽  
Qun Wang ◽  
...  
Keyword(s):  
Virus Infection ◽  
Enzyme Activities ◽  
White Spot Syndrome Virus ◽  
White Spot ◽  
Cherax Quadricarinatus ◽  
White Spot Syndrome

Effect of white spot syndrome virus (WSSV) infection on immune enzyme activity and ultrastructure in the haemolymph tissue of Cherax quadricarinatus (Decapoda, Astacidea)

Crustaceana ◽  
2016 ◽  
Vol 89 (6-7) ◽  
pp. 669-684
Author(s):  
J. J. Ning ◽  
M. M. Zhang ◽  
Q. Q. Tong ◽  
X. Cao ◽  
D. L. Wang ◽  
...  
Keyword(s):  
Enzyme Activities ◽  
White Spot Syndrome Virus ◽  
White Spot ◽  
Immune Protection ◽  
Cell Nuclei ◽  
Cherax Quadricarinatus ◽  
Deformation And Fracture ◽  
Before And After ◽  
Protection Rate ◽  
White Spot Syndrome

To explore the pathogenic mechanism of white spot syndrome virus (WSSV) in crayfish (Cherax quadricarinatus), we analysed activities of the three immune-related enzymes PO, SOD and LSZ in haemolymph tissue ofC. quadricarinatusbefore and after infection, and simultaneously studied the ultrastructural pathology. The results show that WSSV infection affects activities of the three enzymes. After 6-24 h of WSSV infection, the activities of PO, SOD and LSZ increased, but decreased significantly during longer infection times. The enzyme activities in WSSV-infected crayfish were significantly lower than those in controls at 72 h, except for LSZ (). Interestingly, the activities of PO, SOD and LSZ in the group treated with immune-polysaccharides before challenge with WSSV were higher than in the directly infected group, and the immune protection rate reached 51.9%, suggesting that the polysaccharides could improve enzyme activities and enhance antiviral defences of the organism. Ultrastructural pathological changes showed damaged haemolymph tissue, deformed golgiosomes, fuzzy damage in the mitochondrial structures, and nuclear membrane deformation and fracture. High levels of heterochromatin appeared in the nucleus; organoid and chromatin dissolved in dying blood cells, cytoplasm appeared oedematous and cells dissolved. WSSV particles were visible in blood cell nuclei of infected crayfish.

A barrier-to-autointegration factor promotes white spot syndrome virus infection in a crustacean Cherax quadricarinatus

2020 ◽  
Vol 105 ◽  
pp. 244-252 ◽  
Author(s):  
Ling-ke Liu ◽  
Yan Gao ◽  
Rui-lin Gao ◽  
Dong-li Li ◽  
Qiu-xia Zhang ◽  
...  
Keyword(s):  
Virus Infection ◽  
White Spot Syndrome Virus ◽  
White Spot ◽  
Cherax Quadricarinatus ◽  
White Spot Syndrome

Effects of white spot syndrome virus infection and role of immune polysaccharides of juvenile Cherax quadricarinatus

Aquaculture ◽  
2015 ◽  
Vol 437 ◽  
pp. 235-242 ◽  
Author(s):  
Di Zuo ◽  
Dong-Lei Wu ◽  
Chang-An Ma ◽  
Hai-Xia Li ◽  
You-Hui Huang ◽  
...  
Keyword(s):  
Virus Infection ◽  
White Spot Syndrome Virus ◽  
White Spot ◽  
Cherax Quadricarinatus ◽  
White Spot Syndrome
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