AI Article Synopsis
- The study examined the presence of the protozoan Perkinsus in the oyster species Crassostrea rhizophorae along the Bahia State coast in Brazil.
- The analysis of 900 oysters collected in 2010 showed a high prevalence of Perkinsus hypnospores at 63%, with varying levels of infection intensity.
- Additional tests, including polymerase chain reaction, confirmed the protozoan in 87.2% of infected oysters, while histological analysis found trophozoites and schizonts in the oysters' intestinal and stomach tissues.
Article Abstract
This study investigated the occurrence of the protozoan Perkinsus in the oyster Crassostrea rhizophorae on the coast of Bahia State, Brazil. The oysters (n = 900) were collected in February-March and July-August 2010. The Ray's fluid thioglycollate medium (RFTM) analysis of gills and rectum revealed hypnospores of Perkinsus sp. with a high mean prevalence (63%). The infection intensity varied from very light to advanced. The polymerase chain reaction confirmed Perkinsus in 87.2% of the RFTM-positive oysters. Histological analysis showed trophozoites and schizonts phagocytized by hemocytes, mainly in the intestine and the stomach epithelium.
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| http://dx.doi.org/10.1016/j.jip.2012.11.003 | DOI Listing |
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