Results 171 to 180 of about 4,815 (218)

Aconitase from the oyster Crassostrea virginica

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1982
1. The presence of aconitase activity in the oyster. Crassostrea virginica, has been demonstrated. 2. Low levels of activity were found in the different tissues with highest level in digestive diverticular and lowest level in muscle. 3. The conversion of both citrate and iso-citrate to cis-aconitate suggests the presence of an enzyme system capable of ...
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Induced Adhesion in Crassostrea virginica Larvae

Science, 1975
Normal motile veliger larvae of the oyster, Crassostrea virginica , were observed swimming in pairs or trios. Adhesion between animals is firm and has a specific orientation. This adhesion can be induced in low frequencies by culturing larvae at high densities, and in much higher frequencies by inclusion of an ...
R, Ukeles, W E, Rose
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Hemagglutinin in the blood of the oyster Crassostrea virginica

Journal of Invertebrate Pathology, 1966
Abstract A protein in the blood of normal oysters ( Crassostrea virginica ) agglutinates red blood cells of several vertebrate species. Adsorption tests indicate that this material has a moderate degree of specificity. It exerts an opsonic effect on rabbit red blood cells in vitro and probably influences the rate of phagocytosis of red cells and ...
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Crassostrea virginica as an indicator of lead pollution

Marine Biology, 1979
After treatment with 1.0 and 3.3 μg Pb kg-1 for 20 weeks in flowing seawater at ambient salinity and temperature, Crassostrea virginica accumulated as much as 6.57 and 11.42 μg g-1 dry weight, respectively, and no mortalities were recorded. Lead uptake was curvilinear; however, the general trend was an increase in lead concentration over time.
G. E. Zaroogian, G. Morrison, J. F. Heltshe   +2 more
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Comparative Microbial Dynamics in Crassostrea virginica and Crassostrea ariakensis

2021
Center for Coastal Fisheries and Habitat ...
Bean, Tanya J., Morris, Jr., J.A., Noble, Rachel T., Fowler, Patricia K.   +3 more
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Expression of P-glycoprotein in southeastern oysters, Crassostrea virginica

Marine Environmental Research, 2001
These studies provide important fundamental information regarding the expression of P-glycoprotein (p-gp) in southeastern oysters (Crassostrea virginica). Using rhodamine transport studies, p-gp activity was detected in newly fertilized embryos. A monoclonal antibody (C219) was used to evaluate p-gp expression in oyster tissues.
C J, Keppler, A H, Ringwood
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Lysozyme in the hemolymph of the oyster, Crassostrea virginica

Journal of Invertebrate Pathology, 1967
Abstract Oyster hemolymph lyses suspensions of some gram-positive bacteria and degrades cell walls isolated from Micrococcus lysodeikticus with the release of amino and reducing sugars. This indicates that the bacteriolytic substance in oyster hemolymph is lysozyme.
Joseph E. McDade, M.R. Tripp
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Di- and tribromoindoles in the common oyster (Crassostrea virginica)

Chemosphere, 2003
The sources/origins, fate and impacts of naturally occurring organobromine compounds in the marine environment are largely unknown. Soft tissue composites of the common oyster (Crassostrea virginica) collected from coastal Georgia (USA) were analyzed for organobromines by gas chromatography.
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Cytometric investigations on hemocytes of the American oyster, Crassostrea virginica

Tissue and Cell, 1988
Pericardial hemolymph was obtained from American Oysters (Crassostrea virginica) and the hemocytes characterized by flow cytometry. The cells were found to have a broad unimodal size distribution with a median diameter of 7 micrometers. Total protein measured by flow cytometric fluorescence of dansylated cells also revealed a broad unimodal ...
F E, Friedl, M R, Alvarez, J S, Johnson, H G, Gratzner   +3 more
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Kinetic properties of lysozyme from the hemolymph of Crassostrea virginica

Journal of Invertebrate Pathology, 1974
Abstract Lysozyme activity has been demonstrated in both the supernatant and pellet fractions of whole hemolymph of the American oyster, Crassostrea virginica , subjected to centrifugation at 4000 and 10,000 × g . In each case the enzyme activity is greater in the supernatant than in the pellet.
G E, Rodrick, T C, Cheng
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