نتایج جستجو برای: white spot syndrome virus wssv

تعداد نتایج: 1172723  

Journal: :Journal of virology 2011
Ying-Ru Lin Hsiao-Chun Hung Jiann-Horng Leu Hao-Ching Wang Guang-Hsiung Kou Chu-Fang Lo

High temperature (32 to 33°C) has been shown to reduce mortality in white spot syndrome virus (WSSV)-infected shrimps, but the mechanism still remains unclear. Here we show that in WSSV-infected shrimps cultured at 32°C, transcriptional levels of representative immediate-early, early, and late genes were initially higher than those at 25°C. However, neither the IE1 nor VP28 protein was detected...

Journal: :The Journal of general virology 2004
Qin Li Deng Pan Jing-Hai Zhang Feng Yang

Thymidylate synthase (TS) (EC 2.1.1.45) is essential for the de novo synthesis of dTMP in prokaryotic and eukaryotic organisms. Within the white spot syndrome virus (WSSV) genome, an open reading frame (WSV067) that encodes a 289 amino acid polypeptide showed significant homology to all known TSs from species including mammals, plants, fungi, protozoa, bacteria and DNA viruses. In this study, W...

N. Yuvaraj, V. Arul

As white spot syndrome virus (WSSV) can be highly pathogenic in penaeid shrimp, various feed supplements have been tested to help to protect farmed shrimp against WSSV disease. Here a polysaccharide extract from Halophila ovalis (HO) seagrass was added to feeds at concentrations of 0.25, 0.5, and 1.0 g[a1] /kg to assess its ability to protect Black Tiger shrimp (Penaeus monodon) against WSSV ch...

Journal: :Transboundary and emerging diseases 2011
B Oidtmann G D Stentiford

We have reviewed the available peer reviewed literature on pathogen load for white spot syndrome virus (WSSV) in species susceptible to infection. Data on pathogen load in traded commodities are relevant for undertaking import risk assessments for a specific pathogen. Data were available for several of the major penaeid shrimp species farmed for aquaculture and for one crab and crayfish species...

2015
T. Citarasu M. Michaelbabu V. N. Vakharia

The rhizome of Java grass, Cyperus rotundus was extracted different organic polar and non-polar solvents and performed the in vitro antiviral and immunostimulant activities against White Spot Syndrome Virus (WSSV) and Vibrio harveyi respectively. Based on the initial screening the ethyl acetate extract of C. rotundus was strong activities and further it was purified through silica column chroma...

Journal: :The Journal of general virology 2002
Canhua Huang Xiaobo Zhang Qingsong Lin Xun Xu Choy-L Hew

The primary structure of a novel envelope protein from shrimp white spot syndrome virus (WSSV) was characterized using a combination of SDS-PAGE and mass spectrometry. The resulting amino acid sequence matched an open reading frame (ORF), ORF1050, of the WSSV genome ORF database. ORF1050 contained 843 nt, encoding 281 aa, and was termed the vp281 gene. Computer-assisted analysis showed that bot...

Journal: :Journal of virology 2009
Zhi-Ying Zhao Zhi-Xin Yin Xiao-Peng Xu Shao-Ping Weng Xia-Yu Rao Zong-Xian Dai Yong-Wen Luo Gan Yang Zong-Sheng Li Hao-Ji Guan Se-Dong Li Siu-Ming Chan Xiao-Qiang Yu Jian-Guo He

C-type lectins play key roles in pathogen recognition, innate immunity, and cell-cell interactions. Here, we report a new C-type lectin (C-type lectin 1) from the shrimp Litopenaeus vannamei (LvCTL1), which has activity against the white spot syndrome virus (WSSV). LvCTL1 is a 156-residue polypeptide containing a C-type carbohydrate recognition domain with an EPN (Glu(99)-Pro(100)-Asn(101)) mot...

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