Results

1 - 25 of 62
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
A molecular typing study on Vibrio strains implicated in shrimp disease outbreaks in New Caledonia and Japan was conducted by using AP-PCR (arbitrarily primed PCR). It allowed rapid identification of isolates at the genospecies level and studies of infraspecific population structures of epidemiologi...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Diagnosis of haemic neoplasia (HN) in the soft shell clam, Mya arenaria, is often achieved by hematocytology and histology. Since neoplastic cells display tetraploid DNA contents, haemocyte cell cycle analysis was developed for use as a diagnosis tool. The aim of this study was to assess the applica...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
A parasite of the dredge oyster Ostrea chilensis Philippi, previously known as Bonamia sp., was recently described and named Bonamia exitiosus, based on ultrastructural and molecular evidence. The rules governing the names of organisms require correspondence of gender, and the name must be changed f...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Bonamia sp. is a pathogenic parasite that occurs in the haemocytes of dredge oysters Ostrea chilensis Philippi in New Zealand. Ultrastructurally it resembles other haplosporidians in the possession of haplosporosomes, haplosporogenesis, persistence of mitotic microtubules during interphase and of th...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Sample-size calculations in the context of surveys aimed at substantiating freedom from infection have been commonly undertaken on terrestrial animals over recent years, but not on aquatic animals. A recent model developed by Audige and Beckett in 1999 can be used to plan and assess animal health su...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
We have cloned and characterized a cDNA encoding Cg-TIMP, the first tissue inhibitor of metalloproteinase identified in mollusks. The isolated cDNA encodes a protein of 221 residues that has a domain organization similar to that of vertebrate TIMPs including a signal sequence, and the 12 cysteines c...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The French mollusc production is mainly based on the Pacific cupped oyster, Crassostrea gigas. Since 1991, outbreaks of mass mortality of juveniles are reported during the summer period. These outbreaks are a major concern of oyster industry. Several studies have established given bacterial strains ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The French mollusc production is mainly based on the Pacific cupped oyster, Crassostrea gigas. Since 1991, outbreaks of mass mortality of juveniles have been reported during the summer period. These outbreaks are a major concern for the oyster industry. Several studies have established given bacteri...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The pathogens related to summer mortality outbreaks are a herpes virus and two bacterial strains one belonging to Vibrio splendidus biovar II and the other to Vibrio splendidus spp. However, the feature pathogen/opportunist of these strains is still unknown. Several strains belonging to the genus Vi...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The French mollusc production is mainly based on the Pacific cupped oyster, Crassostrea gigas. Since 1991, outbreaks of mass mortality of juveniles are reported during the summer period. These outbreaks are a major concern of oyster industry. Several studies have established given bacterial strains ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Since its first description, the paramyxean parasite Marteilia refringens (Grizel et al.) has been recognised as a significant pathogen of the European flat oyster Ostrea edulis L. The existence of a complex life-cycle involving several hosts was postulated early on by many authors, although it rema...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
French mollusc production is based mainly on the Pacific cupped oyster, Crassostrea gigas. Since 1991, annual mass mortality of juveniles has been reported during summer months. These recurring episodes concern professionals who fear that like Portugese oyster, C. angulata, C. gigas could in turn di...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Since its first description, the paramyxean parasite Marteilia refringens has been recognized as a significant pathogen of bivalve mollusks. The existence of a complex life cycle was postulated by many authors. Here we report the development of DNA-based detection assays as powerful tools to elucida...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Bonamia ostreae is a protozoan parasite of the flat oyster, Ostrea edulis, which has caused significant loss of oysters in Europe over the last decade. B. ostreae was purified from infected flat oysters and DNA was extracted. The nearly complete small subunit rDNA gene of B. ostreae was amplified us...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The development of molecular diagnostic assays with increased sensitivity compared with conventional histological techniques is highly desirable for effective management of bonamiosis in cultured oyster stocks and wild populations. A real-time TaqMan PCR assay was developed for the specific detectio...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The life history of Marteilia refringens was investigated. The infectivity of purified early and late stages of M. refringens to oysters (Ostrea edulis) was tested in the laboratory using different routes of inoculation. Naturally infected oysters were monitored in experimental tanks to study infect...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Marteiliosis is a disease of molluscs caused by Marteilia refringens in Europe and M. sydneyi in Australia. During routine examination of cultured mussels Mytilus galloprovinciallis in the northern Adriatic, the occurrence of Marteilia sp. was recorded with a prevalence of 5%. This parasite was not ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In 2004, epizootiological studies were conducted on mass mortalities of tunicates Halocynthia roretzi in Goje, Korea. The clinical characteristics of infected H. roretzi were weakness of the tunic, loss of elasticity, and finally death involving a rupture of the tunic. Histological studies revealed ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Two cases of haplosporidian infection occurred during 1993 in Pacific oysters Crassostrea gigas from the French Atlantic coast. The localization and ultrastructure of the plasmodia are described. In situ hybridization of infected tissue sections was conducted with DNA probes for oyster-infecting hap...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Since 1990, outbreaks of haemorrhagic septicaemia, frequently associated with keratitis, have occurred on gilthead sea bream (Sparus aurata [Pagrus aurata]), farmed along the French Mediterranean and Atlantic coasts. Several bacterial isolates obtained from diseased sea bream, sea bass (Dicentrarchu...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Disseminated neoplasia (DN) is a disorder referred to as hemic neoplasia (HN) in the soft-shell clam Mya arenaria. Traditionally, diagnosis is performed by hematocytology or histology. The intensity of the disease is generally given as the percentage of transformed neoplastic cells Out of total numb...