Effects of a fungicide on in vitro hemocyte viability, phagocytosis and attachment in the American oyster, Crassostrea virginica

Aquaculture ◽  
1992 ◽  
Vol 107 (2-3) ◽  
pp. 135-140 ◽  
Author(s):  
Marvin R. Alvarez ◽  
Frank E. Friedl
Keyword(s):  
Crassostrea Virginica ◽  
American Oyster

Regulation of metallothionein genes in the American oyster (Crassostrea virginica): Ontogeny and differential expression in response to different stressors

Gene ◽  
2006 ◽  
Vol 379 ◽  
pp. 156-165 ◽  
Author(s):  
Matthew J. Jenny ◽  
Gregory W. Warr ◽  
Amy H. Ringwood ◽  
David A. Baltzegar ◽  
Robert W. Chapman
Keyword(s):  
Differential Expression ◽  
Crassostrea Virginica ◽  
American Oyster

scholarly journals Adaptive feeding in the American oyster Crassostrea virginica : Complex impacts of pulsatile flow during pseudofecal ejection events

2020 ◽  
Vol 65 (9) ◽  
pp. 2010-2023
Author(s):  
Linlin Wang ◽  
Junting Song ◽  
Hongsheng Bi ◽  
Matthew Gray ◽  
Chunlei Fan ◽  
...  
Keyword(s):  
Crassostrea Virginica ◽  
Pulsatile Flow ◽  
American Oyster

Vibrio vulnificus Load Reduction in Oysters after Combined Exposure to Vibrio vulnificus–Specific Bacteriophage and to an Oyster Extract Component†

2005 ◽  
Vol 68 (6) ◽  
pp. 1188-1191 ◽  
Author(s):  
WILLIAM PELON ◽  
RONALD B. LUFTIG ◽  
KENNETH H. JOHNSTON
Keyword(s):  
Health Risk ◽  
Crassostrea Virginica ◽  
Vibrio Vulnificus ◽  
Eastern Oyster ◽  
Load Reduction ◽  
Combined Exposure ◽  
In Vitro System ◽  
Iron Deficient ◽  
Specific Bacteriophage

Oysters infected with Vibrio vulnificus can present a serious health risk to diabetic, immunocompromised, and iron-deficient individuals. Numerous studies have been conducted with the goal of eliminating this organism from raw oysters. We utilized two natural oyster-associated components: pooled Vibrio vulnificus–specific bacteriophage and an extract of the eastern oyster (Crassostrea virginica) that contains an antimicrobial component we named anti–Vibrio vulnificus factor, which is bactericidal for V. vulnificus. Although each component alone can reduce V. vulnificus numbers independently, the simultaneous use of both components in an in vitro system successfully more effectively reduced V. vulnificus bacterial loads.

scholarly journals Post-settlement viability in the American oyster (Crassostrea virginica): an overdominant phenotype

1983 ◽  
Vol 41 (3) ◽  
pp. 259-270 ◽  
Author(s):  
E. Zouros ◽  
Shiva M. Singh ◽  
David W. Foltz ◽  
André L. Mallet
Keyword(s):  
Crassostrea Virginica ◽  
Age Groups ◽  
Natural Populations ◽  
Electrophoretic Analysis ◽  
American Oyster ◽  
Marine Molluscs ◽  
Direct Involvement ◽  
Polymorphic Loci ◽  
Enzyme Polymorphisms ◽  
Genetic Interpretation

SUMMARYThe degree of heterozygosity as determined by electrophoretic analysis of three or four polymorphic loci correlates positively with survival in age groups of the American oyster (Crassostrea virginica) collected as spat from two different natural populations. The phenomenon is shown to operate in ages from 2 weeks (post-settlement) to 3 years and appears to be general in populations of marine molluscs. The most likely explanation for this result is that heterozygosity improves survival through its effect on growth (heterozygotes grow faster). The effects of individual loci on viability are independent of each other. A direct involvement of the enzyme polymorphisms is the most probable genetic interpretation of the data, but associative overdominance cannot be excluded.

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