Crassostrea Gigas Oysters
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Occurrence of potentially pathogenic Vibrio in oysters (Crassostrea gigas) and waters from bivalve mollusk cultivations in the South Bay of Santa Catarina
Introduction This research aimed to identify and quantify potentially pathogenic Vibrio from different cultivations of bivalve shellfish in the State of Santa Catarina, Brazil, and water regions in the South Bay, as well as correlate the incidence of these microorganisms with the physicochemical parameters of marine waters. Methods Between October 2008 an
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-06
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2. The depuration dynamics of oysters (Crassostrea gigas) artificially contaminated with hepatitis A virus and human adenovirus
Within the country of Brazil, Santa Catarina is a major shellfish producer. Detection of viral contamination is an important step to ensure production quality and consumer safety during this process. In this study, we used a depuration system and ultraviolet (UV) disinfection to eliminate viral pathogens from artificially infected oysters and analysed the re
Memórias do Instituto Oswaldo Cruz. Publicado em: 2012-02
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3. Contribuição do estudo oceanográfico para a produção comercial de ostras Crassostrea gigas: estudo de caso da Baía Sul, Ilha de Santa Catarina, SC / Contribution of the oceanographic study to the commercial production of oysters Crassostrea gigas: case study of South Bay, Santa Catarina Island, SC
Os resultados da produção comercial de quatro lotes de \ Ostras do Pacífico\ , espécie Crassostrea gigas, correspondentes às safras dos anos 2005/06, 2006/07, 2007/08, 2008/09 foram obtidos de uma fazenda marinha localizada no sul da Ilha de Santa Catarina, no Estado que lidera a produção nacional de moluscos bivalves. Como o processo de engorda das o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2010
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4. Survival of Vibrio vulnificus in shellstock and shucked oysters (Crassostrea gigas and Crassostrea virginica) and effects of isolation medium on recovery.
When two species of shellstock oysters were artificially contaminated with Vibrio vulnificus, the bacterium survived when the oysters were stored at 10 degrees C and below. Large numbers of endogenous V. vulnificus cells were found after 7 days at both 0.5 and 10 degrees C in uninoculated control oysters (Crassostrea virginica). Oysters allowed to take up V.
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5. Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters (Crassostrea gigas) to Vibrio splendidus
Oysters are permanently exposed to various microbes, and their defense system is continuously solicited to prevent accumulation of invading and pathogenic organisms. Therefore, impairment of the animal's defense system usually results in mass mortalities in cultured oyster stocks or increased bacterial loads in food products intended for human consumption. I
American Society for Microbiology.
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6. Properties of Pseudomonas enalia, a Marine Bacterium Pathogenic for the Invertebrate Crassostrea gigas (Thunberg)1
Bacteriological investigations of dead and dying oysters in populations of Crassostrea gigas grown in Hood Canal, Oyster Bay, and Willapa Bay, Washington, were undertaken. Living, and presumably normal, oysters within the same sample set were also examined. Results indicated that the natural flora of Crassostrea gigas (Thunberg) is composed of organisms repr
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7. Microbiology of Shellfish. Bacteriological Study of the Natural Flora of Pacific Oysters (Crassostrea gigas)12
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8. Molecular identification and expression of heat shock cognate 70 (hsc70) and heat shock protein 70 (hsp70) genes in the Pacific oyster Crassostrea gigas
The 70-kDa heat shock protein (Hsp) family is composed of both environmentally inducible (Hsp) and constitutively expressed (Hsc) family members. We sequenced 2 genes encoding an Hsp70 and an Hsc70 in the Pacific oyster Crassostrea gigas. The Cghsc70 gene contained introns, whereas the Cghsp70 gene did not. Moreover, the corresponding amino acid sequences of
Cell Stress Society International.
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9. Modified procedure for the recovery of naturally accumulated poliovirus from oysters.
Methods were compared for their ability to recover poliovirus from oysters (Crassostrea gigas) which had been allowed to accumulate virus via normal filtration activities. Clarification procedures included glycine-NaCl and polyelectrolyte extraction methods followed by a variety of acid precipitation concentration methods. Polyelectrolyte flocculation follow
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10. Evidence for colonization and destruction of hinge ligaments in cultured juvenile Pacific oysters (Crassostrea gigas) by cytophaga-like bacteria.
Several strains of cytophaga-like gliding bacteria (CLB) were isolated as numerically dominant or codominant components of bacterial populations associated with proteinaceous hinge ligaments of cultured juvenile Pacific oysters, Crassostrea gigas. These bacteria were morphologically similar to long, flexible bacilli occurring within degenerative lesions in o
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11. Elevated temperature method for recovery of Vibrio cholerae from oysters (Crassostrea gigas).
Of 222 Vibrio cholerae isolates from diverse clinical and environmental sources, 219 produced visible growth in alkaline peptone broth when incubated overnight at 42 degrees C. In field trials conducted to compare enrichment at incubation temperatures of 42 and 35 degrees C, significantly higher rates of isolation (P less than 0.05) and recovery (P less than
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12. Supplementation of Perkinsus marinus Cultures with Host Plasma or Tissue Homogenate Enhances Their Infectivity
The protozoan oyster parasite Perkinsus marinus can be cultured in vitro in a variety of media; however, this has been associated with a rapid attenuation of infectivity. Supplementation of defined media with products of P. marinus-susceptible (Crassostrea virginica) and -tolerant (Crassostrea gigas, Crassostrea ariakensis) oysters alters proliferation and p
American Society for Microbiology.