Document Detail


Infectivity and pathogenicity of Baculovirus penaei (BP) in cultured larval and postlarval Pacific white shrimp, Penaeus vannamei, related to the stage of viral development.
MedLine Citation:
PMID:  9647699     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The infectivity and pathogenicity of the penaeid shrimp virus, Baculovirus penaei (BP), is influenced by the stage of viral development. This study consisted of a preliminary experiment which showed that nonocculuded virus administered per os is infective, followed by two infectivity experiments. In the first phase of each infectivity experiment, mysis stage larvae of Penaeus vannamei were inoculated with BP and samples of infected tissue were collected at various times postinoculation (p.i.). These samples were then used to inoculate either mysis or postlarval stage P. vannamei in the second phase of each experiment. Viral inocula prepared from patently infected tissues consistently produced infections in both mysis and postlarval stage shrimp. Inocula prepared from prepatently infected tissue collected 12-18 h p.i. produced infections in some, but not all replicate cultures, while inocula prepared from tissues collected earlier than 12 h p.i. were not infective. Viral development in mysis stage larvae was substantially delayed and the mortality was significantly lower when the viral inocula were prepared from prepatently compared to patently infected tissues. BP appears to be most pathogenic to larvae that have been exposed to inocula prepared from tissues that had recently developed a high prevalence of patent infections or about 72 h p.i.
Authors:
H S Hammer; K C Stuck; R M Overstreet
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of invertebrate pathology     Volume:  72     ISSN:  0022-2011     ISO Abbreviation:  J. Invertebr. Pathol.     Publication Date:  1998 Jul 
Date Detail:
Created Date:  1998-08-11     Completed Date:  1998-08-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0014067     Medline TA:  J Invertebr Pathol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  38-43     Citation Subset:  IM    
Copyright Information:
Copyright 1998 Academic Press.
Affiliation:
Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA. Biof034@uabdpo.dpo.uab.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Baculoviridae / growth & development,  pathogenicity,  physiology*
Larva
Penaeidae / virology*

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