Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-7-26
pubmed:abstractText
Fish pasteurellosis is an infectious disease that affects several teleost species living in temperate marine waters. The pathogen responsible, Photobacterium damselae subspecies piscicida, shows high genetic similarity with P. damselae subsp. damselae, making subspecies discrimination extremely laborious. Here we report for the first time a PCR-RFLP method for the identification of P. damselae subsp. piscicida without prior isolation in pure culture. Genomic sequence information was obtained through cloning and sequencing of RAPD products. Two P. damselae-specific primer pairs were developed and tested on 17 strains of P. damselae subsp. piscicida, 10 strains of P. damselae subsp. damselae, and 6 closely related control species. High sensitivity was achieved in PCR amplification on serially diluted samples (<180 fg of pure bacterial DNA or <10 fg, depending on the amplified fragment). Restriction analysis of PCR products showed a unique digestion profile for all P. damselae subsp. piscicida strains. The same PCR-RFLP method was implemented on total DNA samples extracted from experimentally infected sea bream and sea bass. Positive results were obtained on fish with clear signs of the disease as well as on challenged, but asymptomatic, fish. The method presented here might provide a useful tool for both prevention and rapid diagnosis of fish pasteurellosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0177-5103
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
53-61
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Direct identification of Photobacterium damselae subspecies piscicida by PCR-RFLP analysis.
pubmed:affiliation
Dipartimento di Sanità Pubblica, Patologia Comparata e Igiene Veterinaria-Agripolis, Università di Padova, Viale dell'Universita 16, 35020 Legnaro, Italy.
pubmed:publicationType
Journal Article, Comparative Study