PMID: 9446735Feb 3, 1998Paper

Characterization and Infectivity of Four Bacterial Strains Isolated from Brown Ring Disease-Affected Clams

Journal of Invertebrate Pathology
B NovoaA Figueras

Abstract

Four bacterial strains isolated from carpet-shell clams (Ruditapes decussatus) and manila clams (R. philippinarum) exhibiting Brown Ring Disease (BRD) symptoms in Galicia (Northwest of Spain) were characterized using biochemical and serological techniques. Moreover their pathogenicity for clams and resistance against clam hemolymph were determined. All of the Vibrio isolates exhibited biochemical characteristics typical of the genus. Strains GR1703RP and GR6301RP, isolated from R. philippinarum showing signs of BRD, shared phenotypical and antigenic characteristics and bacterial extracellular products enzymatic activities with the Vibrio tapetis. Strains GR0705RD and GR0202RD, isolated from R. decussatus showing BRD signs, although biochemically similar to V. tapetis, did not show positive agglutination with V. tapetis antiserum. The virulence of the bacteria varied depending on the bacterial strain and clam species assayed. Mortalities were recorded for a 30-day period, reaching values ranging from 6 to 80%. Strain GR0202RD was the most virulent for R. philippinarum with a cumulative mortality rate of 45%, while the strain GR0705RD induced the highest prevalence of BRD signs, affecting 75% of the survivors. In the case of R. d...Continue Reading

Citations

Jul 21, 2011·Journal of Invertebrate Pathology·Sabela BalboaJesús L Romalde
Dec 17, 2008·Fish & Shellfish Immunology·M Prado-AlvarezA Figueras
May 17, 2005·Environmental Microbiology·Carla PruzzoLaura Canesi
Mar 1, 2012·Journal of Applied Microbiology·J Bermúdez-CrespoJ L Romalde
Nov 19, 2011·FEMS Microbiology Letters·Sabela BalboaJesús L Romalde
Sep 9, 2004·Microbiology and Molecular Biology Reviews : MMBR·Fabiano L ThompsonJean Swings
Sep 18, 2003·International Journal of Systematic and Evolutionary Microbiology·B Gomez-GilJ Swings
Mar 9, 2018·Frontiers in Microbiology·Graciela M DiasChristine Paillard
Aug 14, 2021·Marine Pollution Bulletin·Melike Merve AyhanAysel Çağlan Günal

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