NDLI: Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon)

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Viruses of Freshwater Finfish in the Asian–Pacific Region

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Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon)

RNA Interference with Special Reference to Combating Viruses of Crustacea

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Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon)

Content Provider	Springer Nature Link
Author	Poornima, M. Seetang Nun, Y. Alavandi, S. V. Dayal, J. Syama
Copyright Year	2012
Abstract	Among the emerging diseases in shrimp aquaculture, monodon slow growth syndrome (MSGS) is a major concern in South and Southeast Asia. Shrimp farming in Thailand was severely affected during 2000–2002 due to MSGS, which caused an economic loss, of about US$ 300 million. MSGS is characterized by abnormally slow growth with coefficients of size variation of >35 %, that has impacted P. monodon production in Thailand. A new shrimp virus, Laem-Singh virus (LSNV) was identified to be associated in MSGS affected shrimp. LSNV a RNA virus of about 25 nm diameter is phylogenetically related to the insect-borne viruses in the families Barnaviridae, Tymoviridae and Sobemoviridae an important histopathological observation is exclusively noticed in growth-retarded shrimp. The LSNV infections have been confirmed in various organs of infected shrimp such as lymphoid organ, gills and nervous tissues by various diagnostic techniques such as reverse transcription polymerase chain reaction (RT-PCR), in situ hybridization, quantitative real-time RT-PCR and reverse transcription loop-mediated isothermal amplification combined with a lateral flow dipstick (RT-LAMP-LFD) and these tools are available for the diagnosis of LSNV. Recently, an integrase containing element has been identified in absolute association with LSNV in stunted growth shrimp. The transmission of LSNV through horizontal and vertical routes has been experimentally demonstrated. The known natural host-range of LSNV includes P. monodon and other penaeid shrimp. The putative RdRp gene involved in replication of LSNV was targeted for dsRNA-mediated gene silencing and appeared to be effective in a dose-dependent manner. Since the discovery of LSNV in 2006 in Thailand, it has been added to the list of viruses to be excluded from domesticated specific pathogen-free stocks of P. monodon and it has been recommended that shrimp farmers avoid stocking post larvae positive for LSNV to prevent MSGS in their farms.
Starting Page	215
Ending Page	225
Page Count	11
File Format	PDF
ISSN	09702822
Journal	VirusDisease
Volume Number	23
Issue Number	2
e-ISSN	09740120
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-09-18
Publisher Place	India
Access Restriction	Subscribed
Subject Keyword	LSNV MSGS Retinopathy ICE P. monodon Life Sciences Microbiology Biochemistry Cell Biology Protein Structure
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Virology

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Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon).

Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon)

Monodon slow growth syndrome and laem-singh virus (lsnv) retinopathy disease card1 by t.w.flegel2 background.

Full genome characterization of Laem Singh virus (LSNV) in shrimp Penaeus monodon

A novel integrase-containing element may interact with Laem-Singh virus (LSNV) to cause slow growth in giant tiger shrimp

A novel integrase-containing element may interact with Laem-Singh virus (LSNV) to cause slow growth in giant tiger shrimp

Epizootic and pathogenesis of Taura syndrome virus (TSV) in black tiger shrimp (Penaeus monodon) cultured in southern Thailand

Gene expression profiling in gill tissues of White spot syndrome virus infected black tiger shrimp Penaeus monodon by DNA microarray.

Molecular investigation on the presence of monodon slow- growth syndrome (MSGS) in the green tiger shrimp Penaeus semisulcatus in Egypt; biofloc as a control measure

Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon)

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Laem-Singh Virus: A Probable Etiological Agent Associated with Monodon Slow Growth Syndrome in Farmed Black Tiger Shrimp (Penaeus monodon)