Record Display for the EPA National Library Catalog

RECORD NUMBER: 361 OF 1240

OLS Field Name OLS Field Data
Main Title Cytology and Biochemistry of Brown Cells in 'Crassostrea virginica' Collected at Clean and Contaminated Stations.
Author Zaroogian, G. ; Yevich, P. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-93/313 ;ERLN-1274;
Stock Number PB93-229359
Additional Subjects Oysters ; Biochemistry ; Environmental monitoring ; Chemical water pollutants ; Biological markers ; Tissues(Biology) ; Acid phosphatase ; Muramidase ; Glutathione reductase ; Pathology ; Reprints ; Crassostrea virginica ; Brown cells
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NTIS  PB93-229359 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/22/1993
Collation 9p
Abstract
The study examined brown cells of oysters, Crassostrea virginica, as potential indicators of pollution related stress. Regardless of collection station brown cells increased in connective tissue when it was inflamed. Significantly fewer brown cells were observed in connective tissue of oysters from the clean versus the contaminated station; no significant differences in size were apparent in brown cells or vesicles between the two stations. Brown cell vesicles in connective tissue of oysters from the clean station were a translucent light-brown color with inclusions in the larger vesicles, whereas in oysters from the contaminated station they were blackish-brown with 2-3 inclusions in all vesicles regardless of size. Auricles in oysters at the clean station had significantly more brown cells which were larger and contained more vesicles than those at the contaminated station. Studies indicate that vesicles of oyster brown cells are lysosomes and these cells possess the requisites for detoxification and have the potential for use as a biomarker of exposure to contaminants and stress.