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Article
Antimicrobial Activity in the Pallial Cavity Fluids of the Oyster Crassostrea virginica (Gmelin) from a Highly Impacted Harbor in Western Long Island Sound
Journal of Shellfish Research
  • Diane J. Brousseau, Fairfield University
  • Phyllis C. Braun, Fairfield University
  • Amanda S Harper-Leatherman, Fairfield University
  • Erin Sullivan
  • Jenny A. Baglivo
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2014
Abstract

Fluid and its associatedmucus from the pallial (mantle) cavity of eastern oysters Crassostrea virginica (Gmelin) from Black RockHarbor, Bridgeport, Connecticut, inhibited growth of both Gram-positive (Bacillus subtilis, Staphylococcus aureus) and Gram-negative (Escherichia coli, Serratia marcescens, and Vibrio parahaemolyticus) bacteria in antimicrobial assays. In the presence of oyster fluid, E. coli resulted in significant reduction in growth after 26 h. Soluble lysozyme activity in pallial cavity fluid of oysters collected in the fall was 3 times greater than that measured in combined winter—spring—summer samples (P = 0.0008). During the course of the study, copper concentrations in pallial cavity fluid ranged from 0.60–2.49 ppm and zinc concentrations ranged from 9.7–61.0 ppm. Copper concentrations remained relatively constant throughout the study; the highest zinc concentrations were recorded in the fall. Fall antimicrobial assays showed heightened antimicrobial activity compared with the spring, which may be the result of increased lysozyme activity and higher zinc concentrations present in the pallial cavity fluid at that time of year. Results of this study suggest that pallial cavity fluid and its associated mucus likely serve an important role in defense-related functions as the first line of defense against infections from environmental pathogens in Crassostrea virginica.

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Copyright 2014 National Shellfisheries Association

Archived here with permission from the copyright holder.

Published Citation
Brousseau, Diane J., Phyllis C. Braun, Amanda S. Harper-Leatherman, Erin Sullivan, and Jenny A Baglivo. (2014) "Antimicrobial Activity in the Pallial Cavity Fluids of the Oyster Crassostrea virginica (Gmelin) from a Highly Impacted Harbor in Western Long Island Sound." Journal of Shellfish Research 33(3):719-725. 2014
DOI
10.2983/035.033.0306
None
Peer Reviewed
Citation Information
Diane J. Brousseau, Phyllis C. Braun, Amanda S Harper-Leatherman, Erin Sullivan, et al.. "Antimicrobial Activity in the Pallial Cavity Fluids of the Oyster Crassostrea virginica (Gmelin) from a Highly Impacted Harbor in Western Long Island Sound" Journal of Shellfish Research Vol. 33 Iss. 3 (2014)
Available at: http://works.bepress.com/diane_brousseau/2/