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PAPER OPEN ACCESS Identification of white spot syndrome

• I am satisfied that white spot disease which is prohibited matter was confirmed in seven (7) aquaculture properties between 1 December 2016 and 13 February 2017. • I am satisfied that the white spot syndrome virus that causes white spot disease was first confirmed in a small number of prawns from the Logan River on 8 December 2016 White spot syndrome virus (WSSV) is a large double-stranded (ds) DNA virus belonging to the family Nima-viridae (Mayo, 2002). Since its discovery in China (Fujian) in 1991/1992, the virus spread quickly, causing serious losses to commercial shrimp farming worldwide (Cai et al., 1995; Flegel, 1997). The natural marine ecology is als

Emergence of White spot syndrome virus RCN Marine Disease Modeling and Transmission Workshop - May 2015. Source: FAO. World's Production of Penaeid Shrimp Aquaculture Capture Total 0 5 10 15 Pounds (x10 9) 1950 1970 1990 2010 75% 25% RCN Marine Disease Modeling and Transmission Workshop - May 2015. White Spot Virus Syndrome (WSSV) is a pathogen that causes White Spot Disease. It is also one of the main causes of various diseases in Indonesia and several other shrimp-producing countries. WSSV infection in shrimp farming cumulatively can cause deaths up to 100%, which occurs in 3 - 10 day The White Spot Syndrome Virus (WSSV) is a widespread pathogen of several commercially important penaeid shrimp species which causes mass mortalities in aquaculture with high economic impact [1]. The virus is highly virulent, but can also induce latent and asymptomatic infections, which makes creation of virus-free penaeid stocks challenging [2]

White spot syndrome virus (WSSV) is one of the most virulent pathogens affecting penaeid shrimp, causing high mortality in infected populations. Interactions between virus structural proteins are likely to be important for virus assembly. Many steps of the WSSV assembly and maturation pathway remain unclear. In the present study, the interaction between VP37 and envelope or nucleocapsid. The prevalence and geographic distribution of white spot syndrome virus (WSSV) infection among cultured penaeid shrimp in the Philippines was determined from January to May, 1999, using PCR (polymerase chain reaction) protocol and Western blot assays. A total of 71 samples consisting of 18 post-larvae (PL) and 53 juvenile/adult shrimp samples (56 to 150 days-of-culture, DOC) were screened for. White spot syndrome disease is a contagious, high virulent, and pandemic disease of crustaceans especially shrimps caused by WSSV. Since the emergence of WSSV in China in 1992, the virus spread quickly to all the major shrimp aquaculture in both east and west hemisphere countries. The virus belongs to genus Whispovirus in the family Nimaviridae. Journal of Fish Diseases 2006, 29, 569-572 Short communication Studies on the inactivation of white spot syndrome virus of shrimp by physical and chemical treatments, and seaweed extracts tested in marine and freshwater animal models G Balasubramanian, R Sudhakaran, S Syed Musthaq, M Sarathi and A S Sahul Hameed Aquaculture Biotechnology Division, Department of Zoology, C. Abdul Hakeem.

White spots in the cuticle are unreliable even for preliminary diagnosis of white spot disease, because similar spots can be produced by some bacteria, high alkalinity and other infectious or environmental conditions. Disease agent The causative agent of white spot disease is white spot syndrome virus, a large DNA virus assigned to th white spots ranged between 1.5-2.8 mm in diameter embedded in the carapace (Fig 2a and b).The viral particles viewed under TEM in the experimentally infected L.vannamei ranged between 170 and 250 µm (Fig. 3a). The white spot syndrome virus (WSSV) lesions in the cuticular epithelium of the gill of an experimentall white spot syndrome virus (WSSV) in the transmission of white spot disease to Penaeus monodon broodstocks. The study was based on live polychaete worms, Marphysa spp., obtained from worm suppliers/worm fishers as well as samples collected from 8 stations on the northern coast of Tamil-nadu (India)

White spot syndrome virus (WSSV), a major pathogen with high infectivity and mortality, has been a serious threat for penaeid shrimp aquaculture in the past two decades. WSSV is a large double-stranded DNA virus with the approximate genome size of 300 kbp [1-3] White spot syndrome virus or WSSV is a highly lethal, stress‐dependent virus, which belongs to the family Nimaviridae, genus Whispovirus. Three WSSV virus isolates were first detected in 1992 in Thailand, Taiwan and China. Later, a fourth isolate of the virus was detected in the Americas in 1999 Prevalence of white spot syndrome virus (WSSV) was determined using polymerase chain reaction (PCR) methodology on DNA extracted from the gills of wild black tiger shrimp Penaeus monodon collected from 7 sampling sites in the Philippines. These 7 sampling sites are the primary sources of spawners and broodstock for hatchery use. During the dry season, WSSV was detected in shrimp from all sites. The ecological risks of white spot syndrome virus (WSSV), an important aquatic pathogen, has been causing increasing concern recently. A continuous survey on the prevalence of WSSV in the wild crustaceans of the Bohai Sea was conducted in present study. The result of loop-mediated isothermal amplification detection showed that WSSV positivity rates of sampling sites were determined to be 76.73.

White Spot Syndrome Virus (WSSV) is a major shrimp disease, which has caused high mortality rate and economic losses to the major shrimp farming countries in South East Asia, Central America and Southern USA. It is a pathogen found in different pena eid shrimp species including P. monodon, P. japonicus and L. vanname So far, only a White spot syndrome virus (WSSV) is a major pathogen few nonstructural genes, which show homology to known threatening the shrimp aquaculture globally. It is extremely sequences in the databases, have been identified and char- virulent and cumulative mortality can reach up to 100% acterized

White Spot Syndrome Virus (WSSV) is a major shrimp disease, which has caused high mortality rate and economic losses to the major shrimp farming countries in South East Asia, Central America and Southern USA. It is a pathogen found in different penaeid shrimp species including P. monodon, P White spot syndrome virus (WSSV) is one of the most virulent pathogens afflicting shrimp farming. Understanding its influence on shrimp intestinal microbiota is paramount for the advancement of aquaculture, since gut dysbiosis can negatively impact shrimp development, physiology, and immunological response. Thereupon, the data presented herein assesses the influence of WSSV infection and. White spot disease (WSD) was first described from Japan where an initial outbreak occurred in Penaeus japonicus in 1993 (Nakano et al. 1994), and was thought to have originated from stocks imported from China. WSD is caused by white spot syndrome virus (WSSV), a dsDNA rod-shaped virus with large virions (70-150 nm × 250-380 nm) that has. The white spot syndrome virus (WSSV) causes mass mortalities in the aquaculture of shrimps worldwide. The mud shrimp Austinogebia edulis (Ngoc-Ho & Chan, 1992) is an economically important sea. name fiWhite spot syndrome virusfl (WSSV) is nowadays the official name approved by the ICTV (Vlak et al., 2005) and used by the majority of research groups. As the name of the virus already suggests, one of the prominent symptoms of WSSV infections are white spots located on the exoskeleton of the shrimp, especially on the carapace and tail

[PDF] White spot syndrome virus VP37 interacts with VP28

White spot syndrome virus Primerdesign LtdTM 150 tests genesig Advanced Kit® For general laboratory and research use only Quantification of White spot syndrome virus genomes. 1 genesig Advanced kit handbook HB10.03.11 Published Date: 09/11/201 Emergence of White spot syndrome virus RCN Marine Disease Modeling and Transmission Workshop - May 2015. Source: FAO. World's Production of Penaeid Shrimp Aquaculture Capture Total 0 5 10 15 Pounds (x10 9) 1950 1970 1990 2010 75% 25% RCN Marine Disease Modeling and Transmission Workshop - May 2015. ABSTRACT: White spot syndrome virus (WSSV) has caused mass mortalities of cultured shrimp and crab. In this study, polymerase chain reaction (PCR) was used to determine the pattern of WSSV virus multiplication in tissues of shrimp and crabs. Tested specimens were divided into three groups based on WSSV PCR results

[PDF] White spot syndrome virus (WSSV) in cultured Penaeus

issues and the unrestrained outbreak of white spot syndrome (WSS). However, to date, there are no therapeutic strategies to contain the spread of the virus. Here, we synthesized 27 coumarin derivatives and evaluated their anti-white spot syndrome virus (WSSV) activity in L. vannamei larvae The causative agent of white spot disease is white spot syndrome virus (WSSV) which is an envelope, double stranded DNA virus. The virion were elliptical to short rods with trilamilar envelop that measured as 248±87×107±11nm and nucleocapsids were 162±15×59±17nm. It seems that the virus at the end have a tail and it is ver View CLIMATOLOGY Persistence_of_white_spot_syndrome_virus.pdf from ENVIRONMEN TGN 403 at University of Nairobi. Environ Monit Assess (2009) 156:69-72 DOI 10.1007/s10661-008-0463-7 Persistence o White Spot (bintik putih) yang disebabkan oleh virus yaitu White Spot Syndrome Virus (WSSV). Udang yang terinfeksi virus WSSV berpotensi menyebabkan 100% kematian (Firmansyah, 2002). Litopennaeus vannamei yang terkena serangan penyakit White Spot terjadi pada usia >30 hari. Umumnya ukuran muda merupakan ukuran yang paling rawa White spot syndrome (WSS) adalah penyakit yang secara signifikan menyebabkan tingginya mortalitas dan kerusakan parah pada budidaya udang. Penelitian ini bertujuan mengetahui dampak stres salinitas terhadap prevalensi WSSV dan survival rate udang vannamei (Litopenaeus vannamei).Penelitian ini menggunakan udang vannamei ukuran PL 40 yang diinfeksi WSSV dengan konsentrasi virus 20 μg/ml pada.

White Spot Syndrome Virus - an overview ScienceDirect Topic

  1. How to cite this article: Alaudeen H. Molecular Detection of White Spot Syndrome Virus from Farmed Shrimps in Saudi Arabia.Cohesive J Microbiol infect 3/7 Dis. 1(4). CJMI.000518.2018.DOI: 10.31031/CJMI.2018.01.000518. Cohesie Microbiol inect Dis Volume 1 - Issue - 4 Coriht Alaudeen Haami A nested PCR assay was developed for highly sensitiv
  2. Shrimp subcuticular epithelial cells are the initial and major targets of white spot syndrome virus (WSSV) infection. Proteomic studies of WSSV-infected subcuticular epithelium of Penaeus monodon were performed through two approaches, namely, subcellular fractionation coupled with shotgun proteomics to identify viral and host proteins and a quantitative time course proteomic analysis using.
  3. White spot syndrome virus (WSSV) is a virulent disease that disrupts shrimp farm operations throughout the world. While the United States has had only limited outbreaks of WSSV within the past several decades, it is important to ensure that this disease does not infect wild penaeid shrimp populations
  4. Key words: White spot syndrome virus, VNTR, SNP, ORF94, ORF75, ORF125. INTRODUCTION Wild and farmed shrimp are the most commonly harvested marine species in Mexico, with an aver-age yearly production of 187,000 MT in 2009 (CO-NAPESCA, 2009). However, white spot syndrome virus (WSSV) continues to be the most pathogenic.
  5. White spot syndrome Primerdesign Ltdvirus TM 50 reaction genesig Easy Kit for use on the genesig® q16 ® For general laboratory and research use only White spot syndrome virus 1 genesig Easy kit handbook HB10.18.07 Published Date: 09/11/201

shrimp virus white spot syndrome virus (WSSV) has also been shown to encode a novel anti-apoptosis protein WSSV449 [14]. To further understand the apoptotic interplay between WSSV and the shrimp host, we therefore cloned and characterized a caspase from P. monodon. We further demonstrated that the apoptotic responses induced by P White Spot Syndrome Virus (WSSV) detection kit White spot disease (WSD) is one of the most important viral disease for marine shrimp culture, characterised by high and rapid mortality accompanied by gross signs in moribund shrimp of white, initially circular, inclusions or spots in the cuticle, sometimes accompanied by overall red body coloration White Spot Syndrome Virus (WSSV) is an enveloped double-stranded DNA virus recognized for its great impact on global shrimp farming and for the complexity of its ~300kb genome [1]. To date, little is known about the function of most of the ~184 WSSV predicted proteins since they have no homology with known sequences in the repositories [2]

The most dangerous infectious diseases are white spot syndrome (WSS) and acute hepatopancreatic necrosis disease (AHPND). White spot syndrome which is caused by a virus (WSSV) was first described in 1992. WSSV-infected shrimp are featured by redness of their body and white spots on their shell (Chou et al., 1995). AHPND emerged in 2009 and i MyLab Lifesolutions provides PathoDetect YHV detection Kit and WSSV detection kits which constitutes a ready - to - use reagents for the detection of Yellow head virus RNA and White spot syndrome virus DNA using real time PCR respectively.Real time PCR constitutes the fluorogenic probe based chemistry that uses the 5′ nuclease activity of Taq DNA polymerase andenables the detection of a.

White spot disease. White spot disease is a highly contagious viral infection that affects crustaceans. The disease is caused by white spot syndrome virus (WSSV). Situation update. White spot disease was first detected in South East Queensland in December 2016. Seven prawn farms on the Logan River were affected from late 2016 to early 2017 10 days, whereas administration of 1.06 106 virus copies resultedin100% mortalityafter3-7days(3).Recently,viral loadsmeasuredinshrimpwere109-1010 copynumbers/gof tissue at the onset of mortality (11). White spot syndrome virus outbreaks coincide with the onset of the monsoon in Malaysia, when intense rainfal White spot syndrome virus (WSSV) of shrimp contains a very large genome, consisting of a 305-kb double-stranded circular DNA strand.21 WSSV is the sole representative of a new virus group (Nimaviridae Whispovirus),22 and, as such, the virus has attracted increasing attention as a model for virus-host interac-tion White spot syndrome virus (WSSV), is the most contagious pathogen of cultured shrimp that causes mass mortality, leading to huge economic loss to the shrimp industry. The lack of effective therapeutic or prophylactic measures has aggravated the situation, necessitating the development of antiviral drugs. With this objective, th White spot disease, caused by the white spot syndrome virus (WSSV), has caused major losses in shrimp farming in Egypt since 2009. The genome sequence of the WSSV-Egypt isolate will be valuable in epidemiological studies to delineate the origin and spread of WSSV in Egypt and elsewhere in the world

(PDF) Studies on the inactivation of white spot syndrome

WSSV probes showed strong positive reactions in dot‐blots and by in situ hybridization in sections and specific virus DNA fragments were amplified successfully with WSSV primers. White spot syndrome virus was pathogenic for the majority of the crustaceans tested. This underlines the epizootic potential of this virus in European crustaceans White spot syndrome virus (WSSV) occurs worldwide and causes high mortality and considerable economic damage to the shrimp farming industry. The VP28 was one of the envelope proteins of WSSV. Almost all shrimps infected with WSSV in ponds die within 3 to 4 days after the first dead shrimp was observed with gross lesions ranging from abnormal. INTRODUCTION. White spot syndrome virus (WSSV), the only species of the genus Whispovirus, family Nimaviridae, is a major pathogen of shrimp.It is a large double-stranded DNA virus with a broad host range among crustaceans ().Although WSSV was first discovered 20 years ago, the mechanism by which this virus modulates cellular pathways during infection remains to be explored White spot syndrome virus (WSSV) causes major worldwide losses in shrimp aquaculture. The development of resistant shrimp populations is an attractive option for management of the disease. However.

White spot syndrome virus (WSSV) is a highly transmissible virus affecting numerous crustaceans and is problematic in shrimp culture globally. Pond culture systems with high stocking densities promote WSSV multiplication and clinical disease, with rapid onset mortality up to 100% within 3 to 10 days of onset. White spot syndrome can be induced. White spot syndrome virus (WSSV), a member of the genus Whispovirus, is a crustacean-infecting, rod-shaped, enveloped, double-stranded circular DNA virus with a genome of approximately 300 kbp (Leu etal., 2009).Whitespot syndrome (WSS)is themost severethreattoall cultivatedspeciesofshrimpworld-wide (Siddique et al., 2018)

Many medicinal herbs have potent antiviral properties. The extract of Phyllanthus amarus is a lignan composed of the compounds: niranthin, phyllanthin, and hypophyllanthin which have an impact on the white spot syndrome virus (WSSV) in the shrimp, Penaeus monodon Crystal structure of White Spot Syndrome Virus Thymidylate Synthase - ternary complex with Methotrexate and dUMP. DOI: 10.2210/pdb7CCA/pdb; Classification: TRANSFERASE; Organism(s): Shrimp white spot syndrome virus (isolate Tongan) Expression System: Escherichia coli BL21(DE3) Mutation(s): No ; Deposited: 2020-06-16 Released: 2020-11-2 A Surveillance Program for white spot syndrome virus (WSSV) commenced on 21 January 2017. The Surveillance program (PDF, 4.3MB) will aid in confirming the presence or absence of WSSV by testing wild and farmed crustaceans across the state, including crustaceans and marine worms used for bait. These biosecurity measures are supported by.

White Spot Syndrome Virus (WSSV) is a common viral disease that attacks vannamei shrimp (Litopanaeus vannamei) and causes high mortality and damage to cultured shrimp organs. A way to detect WSSV disease is by using PCR (Polymerase Chain Reaction) method which is a method of multiplying or replicating DNA. This study aims to determine the level of prevalence of the WSSV virus attack and find. Among these pathogens, white spot syndrome virus (WSSV) has always been a viral agent of greatest concern, although other viruses such as Taura syndrome virus (TSV), infectious hypodermal and hematopoietic necrosis virus (IHHNV) and decapod iridescent virus 1 (DIV1) were reported to cause losses in farmed shrimp (2-5) White spot syndrome virus (WSSV) is one major pathogen in shrimp aquaculture. WSSV ORF403 is predicted to encode a protein of 641 amino acids, which contains a C3H2C2 RING structure. In the presence of an E2 conjugating enzyme from shrimp, WSSV403 can ubiquitinate itself in vitro, indicating it can function as a viral E3 ligase. Besides, WSSV403 E3 ligase can be activated by a series of E2.

White Spot Syndrome Virus in cultured shrimp: A review

  1. White spot syndrome virus (WSSV) has been considered one of the most dangerous pathogens infecting cultured shrimp, causing a mortality rate as high as 100% within 7-10 days of viral infection. So far, several protocols have been applied to protect shrimp against virus attacks, but their protection efficiency is very limited
  2. The results were similar when white spot syndrome virus infected the L. vannamei in this study; the results indicated that the WSSV-infected shrimps have a changed hepatopancreas metabolite profile. Compared with healthy controls, glucose of infected shrimp was increased but decreased at the time when the infected shrimp approaching to death
  3. White spot syndrome virus (WSSV) is currently the most serious viral pathogen of shrimp worldwide causing 100 % cumulative mortality in 2-10 days [].WSSV, the largest animal virus known to affect cultured shrimp is a sole member of the monotypic family Nimaviridae, genus Whispovirus [].It has a circular dsDNA genome of about 300 kbp that contains approximately 185 open reading frames (ORFs) []
  4. Introduction. White spot syndrome virus (WSSV), recognized in 1993, has become a significant pathogen of cultured shrimp in South-east Asia, the Indian continent, and in South and Central America (Rosenberg 2000).It causes up to 100% mortality within 7-10 days in commercial shrimp farms, resulting in large economic losses to the industry (Lightner 1996)
  5. Crystal structure of White Spot Syndrome Virus Thymidylate Synthase - Apo form. DOI: 10.2210/pdb7CC8/pdb. Classification: TRANSFERASE. Organism (s): Shrimp white spot syndrome virus (isolate Tongan) Expression System: Escherichia coli BL21 (DE3) Mutation (s): No. Deposited: 2020-06-16 Released: 2020-11-25

[PDF] Prevalence of white spot syndrome virus (WSSV) in

The White Spot Syndrome Virus (WSSV) is an extremely lethal and contagious shrimp pathogen. It has emerged globally as the major threat for shrimp farming during the last decades as outbreaks of WSSV lead to cumulative mortalities of 100% within 3-10 days after the onset of clinical signs [1, 2].WSSV was first detected in Taiwan in 1992 [], and since then it has spread globally to all major. White Spot Syndrome Virus (WSSV) White spot syndrome virus is the most virulent pathogen of penaeid shrimp. WSSV was recognized in the early 1990s in eastern and southeastern Asia. WSSV is an ovoidal, enveloped particle about 80- 20 nm wide by 250-380 nm long with a small tail-like appendage at one end White spot syndrome virus (WSSV) is the lone virus (and type species) of the genus Whispovirus (white spot), which is the only genus in the family Nimaviridae. It is responsible for causing white spot syndrome in a wide range of crustacean hosts. White spot syndrome (WSS) is a viral infection of penaeid shrimp.The disease is highly lethal and contagious, killing shrimp quickly Experimental infection of white spot syndrome virus in freshwater crayfish Pacifastacus leniusculus. Dis Aquat Organ47, 151-7. Jiravanichpaisal, P. (2005). White spot syndrome virus interaction with a freshwater Crayfish. Digital Comprehensive Summaries of Uppsala Dissertations from the faculty of science and technology 47.56pp Key words: Water exchange, white spot syndrome virus, shrimp culture. Esparza-Leal, H. M., J. T. Ponce-Palafox, H. Cabanillas-Beltrán & F. Flores-Verduzco. 2007. Effect of white spot syndrome virus (WSSV) and water exchange on survival and production of Litopenaeus vannamei under semi-intensive culture conditions. Hidrobiológica 17 (1): 35-40

Investigation of white spot syndrome virus (WSSV

  1. FISHERIES (WHITE SPOT SYNDROME VIRUS) DISEASE DECLARATION 2000 [reprinted as in force on 4 January 2001] ˙Short title 1. This declaration may be cited as the Fisheries (White Spot Syndrome Virus) Disease Declaration 2000. ˙Disease declaration—Act, s 94 2. White spot syndrome virus is declared to be a declared disease for the Act
  2. The shrimp white spot syndrome virus (WSSV) causes significant damage to aquaculture production worldwide but a vaccine, eliciting the immunogenicity of shrimps against WSSV has yet to be developed. Thus, a programmed immunoinformatics study was conducted t
  3. Argentine red shrimp (Pleoticus muelleri) fishery, one of the most important in the Argentine Sea, exceeded in 2016 50% of the total value of fishing exports. The implementation and development of health controls are requirements of international trade. Among the pathogens that affect crustaceans is the White spot syndrome virus (WSSV) and, according to the World Organisation for Animal Health.
  4. In this study, a virus similar to the causative agent of white spot syndrome virus (WSSV) but without tail-like extension was identified and characterized from diseased Penaeus vannamei and moribund Procambarus clarkia. Contrary to previous reports, white spots were not observed on the carapace of the diseased P. vannamei but with ulceration on the carapace and red tail
  5. The quality and survival rate are still being the problem that hampers the productivity of black tiger shrimp, Penaeus monodon culture. Impaired quality of larval shrimp and environmental conditions can confer shrimp be infected by diseases, including viruses such as white spot syndrome virus (WSSV). Prevention of disease infection using chemicals can offer negative impacts on water, pathogen.
  6. Shrimp culture is a fast growing aquaculture sector, but in recent years there has been a shift away from tiger shrimp Penaeus monodon to other species. This is largely due to the susceptibility of P. monodon to white spot syndrome virus disease (Whispovirus sp.) which has impacted production around the world. As female penaeid shrimp grow more rapidly than males, mono-sex production would be.
  7. Virus sering kali menjadi kendala utama yang dihadapi dalam budidaya terutama kegiatan budidaya udang. Lima jenis virus yang telah ditemukan pada budidaya udang windu, yaitu Monodon Baculo Virus (MBV), Yellow Head Virus (YHV), White Spots Syndrome Virus (WSSV), Infectious Hematopoietic and Hypodermal Necrotic Virus (IHHNV), dan Hepatopancreatic Parvo-Like Virus (HPV) (Lightner, 1996)

(PDF) Characterization of ORF89—A latency-related gene of

  1. g industry
  2. Penelitian ini bertujuan untuk mengetahui tingkat keganasan (patogenitas) virus white spot berdasarkan tingkah laku morfologi, gejala klinis, karakteristik sel organ udang uji yang terinfeksi melalui pemeriksaan secara histologis, serta jumlah mortalitas dalam sediaan baku virus white spot dengan konsentrasi 20-23 ug/ml. Penelitian ini dilaksanakan pada bulan Juni sampai Juli 2001
  3. The disease is caused by the White Spot Syndrome Virus (WSSV), a large dsDNA virus and the only member of the Nimaviridae family. Susceptibility to WSSV in a wide range of crustacean hosts makes it a major risk factor in the translocation of live animals and in commodity products
  4. Importance White spot syndrome virus (WSSV) is an important shrimp viral pathogen and responsible for huge economic loss to shrimp culture industry worldwide including India. The global loss due to WSSV has been estimated about USD 10 billion and the loss continues at the same extent even now. Various strategies have been followed to prevent or control diseases of aquatic animals
  5. White spot syndrome virus (WSSV) is a large dsDNA virus and the causative agent of White spot disease (WSD), has been reported to cause severe mortality in farmed shrimp especially black tiger shrimp, Penaeus monodon in many countries (Balasubramanian et al. 2008).Black tiger shrimp is the main coastal aquaculture species and second highest foreign currency earning source in Bangladesh (DoF 2013)

1 INTRODUCTION. White spot syndrome virus (WSSV) is one of the most virulent and prevalent shrimp viral pathogens. 1, 2 It is a large dsDNA virus with a genome of ~300 kb and approximately 180 ORFs, 3, 4 being the only member of the genus Whispovirus in Nimaviridae family. The viral morphogenesis mainly occurs within virogenic stroma in the nucleus. 5 So far, more than 50 viral structural and. White spot syndrome virus (WSSV) is a strong pathogenic virus which spread very rapidly and can cause tiger shrimp mass mortality within a short period. Enhancement of shrimp immunity by infecting inactivated WSSV is one of the efforts to overcome WSSV infection in shrimp. In this study, inactivate White spot syndrome virus (WSSV) infects shrimp and causes white spot disease (WSD), which is considered one of the most lethal virus pathogens in cultured shrimp [].WSSV was initially discovered in Taiwan and spread quickly to the entire world [2, 3].The infection reaches a cumulative mortality of up to 100% within 10 d, causing rapid economic damage in fishery industries [] White Spot Syndrome Virus (WSSV) is the most damaging pathogen in terms of production and economic losses for the shrimp sector world-wide. Estimation of heritability for WSSV resistance was made in this study to obtain necessary parameter inputs for broadening the breeding objectives of an ongoing selective breeding programme for Whiteleg shrimp (Liptopenaeus vannamei) that has focussed.

White spot syndrome virus (WSSV) disturbs the intestinal

  1. White spot syndrome virus. From Wikispecies. Jump to navigation Jump to search. Taxonavigation (Unranked): Virus Group I: dsDNA Ordo: Unassigned Familia: Nimaviridae Genus: Whispovirus Species: White spot syndrome virus. Download as PDF; Printable version; In other projects. Wikipedia
  2. Therefore, we have explored the development of a novel vaccine-based method to control this disease using transgenic algae. During infection by white spot syndrome virus (WSSV), the interaction between viral envelope proteins and cell surface protein receptors on target cells is the key step of viral entry and replication
  3. Histopathological Observation of White Spot Syndrome Virus and Infectious Hypodermal and Hematopoietic Necrosis Virus in Shrimp Farms, Litopenaeus vannamei, in Bushehr Province, Iran M.K. Pazir, M. Afsharnasab, N. Niamaymandi, H. Khadem, E. Akbarpour and A.A. Zendebudi: Abstract: This study was conducted to identify White Spot Syndrome Virus (WSSV) and Infections Hypodermal and Hematopoietic.
  4. al catalytic motif V (pre-V insert), rarely seen in other dUTPases
  5. White spot disease (WSD) is one of the most devastating viral infections of crustaceans caused by the white spot syndrome virus (WSSV). A conserved sequence WSSV131 in the DNA genome of WSSV was found to fold into a polymorphic G-quadruplex structure. Supported by two mutant sequences with single G→T substitutions in the third G 4 tract of WSSV131, circular dichroism and NMR spectroscopic.
  6. White spot syndrome virus (WSSV) is a major viral pathogen that affects shrimp aquaculture all over the world [1, 2].WSSV is a rod-shaped enveloped virus typically 250 to 380 nm in length and 80 to 120 nm in diameter, containing a double-stranded DNA genome of ~300 kb [].The virus infects multiple crustacean species including penaeid shrimp, crayfish, crab and lobster [4,5,6,7]
  7. Virulence Status, Viral Accomodation And Structural Protein Profile Of White Spot Syndrome Virus Isolates In Farmed Penaeus Monodon From The Southeast Coast Of India. Aquaculture Research 40:129-138. Tang K.F.J., Donald V.L. 2000. Quantification Of White Spot Syndrome Virus Dna Through A Competitive Polymerase Chain Reaction. Aquaculture 189.

First detection of white spot syndrome virus (WSSV) in the

White spot syndrome virus [WSSV]is one of the most devastating shrimp pathogens , and it has caused serious damage to the shrimp culture industry. This virus can infect several crustacean species, including shrimp, crab, and crayfish. VP664, is one of the viral structural proteins. The existence of the corresponding 18-kb transcript was. White spot syndrome virus (WSSV) is a virulent pathogen known to infect various crustaceans. It has bacilliform morphology with a tail-like appendage at one end. The envelope consists of four major proteins. Envelope structural proteins play a crucial role in viral infection and are believed to be the first molecules to interact with the host White spot syndrome virus (WSSV) infection is characterized by rapid disease onset and high mortality. The mortality typically reaches 90% within 2 to 7 days after the onset of the disease. Recently, WSSV was also found in the form of a latent infection in freshly caught wild shrimp and crabs These diseases create great problems for the commercial farming of crustaceans and mussels. One of the most common and most disastrous diseases for shrimp is caused by the white spot syndrome virus (WSSV), which is spread all around the world and also is infecting many different species of crustaceans including freshwater crayfish Sukenda , S.H. Dwinanti and M. Yuhana . , 2009. The existence of White Spot Syndrome Virus ( WSSV ) , Taura Syndrome Virus ( TSV ) and Infectious hypodermal Haematopoitic Necrosis Virus ( IHHNV ) in Intensive Shrimp Ponds of Litopenaeus vannamei Vaname In Bakauheni , South Lampung . Indonesian Aquaculture Journal , 8 ( 2 ) : 1-8

On the vaccination of shrimp against white spot syndrome viru

White spot syndrome virus (WSSV) is the most virulent and the largest animal virus known to affect cultured shrimp (Lightner, 1996 Lightner, D. V. 1996. A handbook of shrimp pathology and diagnostic procedures for diseases of cultured penaeid shrimp, Baton Rouge, LA: World Aquaculture Society In this study, formalin-inactivated virus (FIV) was administered by injection, bath-immersion, or orally to determine levels of vaccination-mediated protection against the pathogenic white spot syndrome virus (WSSV). Diets supplemented with alfalfa, methyl sulfonyl methane (MSM), or wheat grass were provided with or without FIV Sánchez-Paz A (2010) White spot syndrome virus: an overview on an emergent concern. Veterinary Research 41: 43. . Lo CF, Leu JH, Ho CH, et al. (1996) Detection of baculovirus associated with white spot syndrome (WSBV) in penaeid shrimps using polymerase chain reaction. Disease of Aquatic Organisms 25: 133-141

(PDF) The White Spot Syndrome Virus DNA genome sequence

Small Molecule Inhibitors of White Spot Syndrome Virus

White spot syndrome virus (WSSV) causes major worldwide losses in shrimp aquaculture. The development of resistant shrimp populations is an attractive option for management of the disease. However, heritability for WSSV resistance is generally low and genetic improvement by conventional selection has been slow White spot syndrome virus (WSSV) is the world's most serious disease threat to all species of cultivated shrimp, and is also known to infect many other crustacean species that can act as carriers [1, 2].Among these carriers, mud crabs have been considered to be a particularly dangerous threat to shrimp farms because they are generally believed (based on a report for the species Scylla serrata. (2014) Robinson et al. BMC Genomics. Background: Shrimp culture is a fast growing aquaculture sector, but in recent years there has been a shift away from tiger shrimp Penaeus monodon to other species. This is largely due to the susceptibility of P. monodon to white spot syndrome virus disease (W..

CLIMATOLOGY Persistence_of_white_spot_syndrome_virus

Authors: T. Citarasu, M. Michaelbabu V. N. Vakharia Abstract: 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 A simple and easy method of concentrating white spot syndrome virus by employing aluminium sulphate, alum as a flocculant was developed and evaluated for field detection. The concentrated virus was detected by a monoclonal antibody based flow-through assay, RapiDot and compared its performance with polymerase chain reaction White spot syndrome virus (WSSV) is one of the most devastating pathogens of cultured shrimp, responsible for massive loss of its commercial products worldwide. The oriental river prawn Macrobrachium nipponense is an economically important species that is widely farmed in China and adult prawns can be infected by WSSV. However, the molecular mechanisms of the host pathogen interaction remain. Abstract. White spot disease (WSD) is a pandemic disease caused by a virus commonly known as white spot syndrome virus (WSSV). Several risk factors for WSD outbreaks have been suggested White spot syndrome (WSS) is one of the most common and most disastrous diseases of shrimp worldwide. It causes up to 100% mortality within 3 to 4 days in commercial shrimp farms, resulting in large economic losses to the shrimp farming industry. VP28 envelope protein of WSSV is reported to play a key role in the systemic infection in shrimps

(PDF) Silver nanoparticles enhance survival of white spot

Dampak Stres Salinitas Terhadap Prevalensi White Spot

White spot syndrome (WSS) is a viral disease that affects most of the commercially important shrimps and causes serious economic losses to the shrimp farming industry worldwide. However, little information is available in terms of the molecular mechanisms of the host-virus interaction. In this study, we used an expressed sequence tag (EST) approach to observe global gene expression changes in. White spot syndrome virus strains of different virulence induce distinct immune response in Cherax quadricarinatus Fish & Shellfish Immunology, Vol. 39, No. 1 Molecular characterization, immune response against white spot syndrome virus infection of peroxiredoxin 4 in Fenneropenaeus chinensis and its antioxidant activit Harvard-Style Citation (2011) 'In Vivo Titration and Development of a Challenge Model for White Spot Syndrome Virus (WSSV) in Pacific White Shrimp (Litopeneus vannamei)', Iowa State University Animal Industry Report.8(1) doi: 10.31274/ans_air-180814-105

(PDF) Characterization of a tailless white spot syndrome(PDF) Development of primary cell cultures from mud crab(PDF) Four viral proteins of white spot syndrome virus(PDF) Purification and genomic analysis of baculovirus(PDF) Fusion of Flagellin 2 with Bivalent White Spot(PDF) A simple and rapid immunochromatographic test strip(PDF) White spot syndrome virus (WSSV) detected by PCR in