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| Registros recuperados: 142 | |
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| Delsert, Claude; Cancela Da Fonseca, Leonor. |
| The main objective of this project was to develop the tools for the in-depth understanding of mollusc biology and pathology. Such a goal has been reached in other biological systems through the development of molecular biology and cell culture. Indeed, development of a mollusc cell culture system is an essential step to approach many of the problems related to mollusc pathology, in particular to use molecular biology tools to study viral infection of these organisms. No continous cell line is available from bivalves and while cell cultures have been obtained from these organisms they are difficult to develop and labor intensive, survival cultures being maintained only for a few weeks. Our goal has been to study in detail many of the parameters involved in... |
| Tipo: Text |
Palavras-chave: Pathology; Mussel-specific expression vectors; Cell culture; Mytilus galloprovincialis; Gene; Genetic marker. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00044/15540/12917.pdf |
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| Renault, Tristan; Davison, Andrew; Xhonneux, Florence; Dorange, Germaine; Culloty, Sarah; Novoa, Beatriz; Dixon, Peter. |
| Little information is available on viral infections that affect bivalve molluscs. Such a lack of data is due ta a certain inadequacy of the diagnosis methods that are employed when massive mortality events occur. Most laboratories involved in mollusc pathology still analyse samples through light microscopy. World-wide, there is thus currently a lack of information concerning the occurrence of bivalve herpesvituses. This is probably due to the lack of suitable diagnostic tools. The basic method for identification and examination of suspect samples is predominantly histopathology. This enables the identification of any cellular changes, but is not conclusive identification of bivalve herpesviruses. This technique doesn't allow, by itself, to detect viruses... |
| Tipo: Text |
Palavras-chave: Pathology; Virology; Diagnosis; Herpes like virus; Validation molecular; Detection; Herpesviridae; OsHV-1; Diagnostic techniques; Oysters. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00044/15525/12912.pdf |
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| Bodoy, Alain; Bougrier, Serge; Geairon, Philippe; Garnier, Jacqueline; Boulo, Viviane; Heurtebise, Serge. |
| The flat oyster Ostrea edulis was originally reared in several regions of the European waters. The tidal saline ponds on the Atlantic coasts of France were highly productive before being hit by two consecutive epizooties. Parasitic diseases were described on this species, both of them leading 10 economic losses, as heavy mortalities have usually been recorded before the oysters reach the commercial size. Repeated experiments showed that the two diseases, Marteilia refringens and Bonamia ostreae are still active in this environment. Recently, some evidences were given that haemocytoblasts of Crassostrea gigas had the ability to lyze the Bonamia cells. Therefore, in an experiment of contiguous culture of the two species of oysters, the growth, mortality and... |
| Tipo: Text |
Palavras-chave: Molluscs; Mortalities; Growth; Pathology; Crassostra gigas; Ostrea edulis; Marteilia refringens; Bonamia ostreae. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/acte-3049.pdf |
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| Maes, P; Paillard, C. |
| The symptom which characterizes the brown ring disease (BRD) in Manilla clam Ruditapes philippinarum has been observed in other Bivalvia species (Veneridae and Pectinidae). Vibrio P1, responsible of the BRD in R. philippinarum , has been detected in other Veneridae which were carrying the symptom. In mussel and oysters which are cultivated in Europe, the symptom has never been reported and Vibrio P1 has not been detected. Experimental contaminations of bivalves of commercial interest with the pathogen showed a clear Vibrio P1 sensitivity of European clam R. decussatus ; this latter seems however to be less sensitive than the Manilla clam. |
| Tipo: Text |
Palavras-chave: Ruditapes philippinarum; Bivalvia; Diseases; Marine molluscs; Pathology; Vibriosis. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-926.pdf |
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| Arzul, Isabelle; Bond, Celine; Gagnaire, Beatrice; Chollet, Bruno; Morga, Benjamin; Ferrand, Sylvie; Robert, Maeva; Renault, Tristan. |
| Bonamiosis due to the intrahaemocytic protistan parasite Bonamia ostreae is a European endemic disease affecting flat oysters Ostrea edulis. The parasite has been described in different ecosystems from estuaries to open sea and no clear correlations could be demonstrated between the development of the disease and environmental parameters such as temperature or salinity. The parasite life cycle, including its survival outside the host is not completely known. Nevertheless, the infection can be directly transmitted by cohabitation between infected and non infected oysters suggesting that the parasite does not need intermediate host to complete its cycle. In the present study, the impact of temperature and salinity on the survival of purified parasites... |
| Tipo: Text |
Palavras-chave: Effects; Temperarature; Salinity; Bonamia ostreae; Parasite; Pathology; Flat oyster; Ostrea edulis; Oyster. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/acte-3375.pdf |
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| Robert, Rene; Pichot, Yves; Comps, Michel. |
| From 1988 to 1989, a study has been conducted pertaining to the growth of the flat oyster Ostrea edulis, as well as Marteilia refringens and Bonamia ostreae outbreaks. Commercial mono specific farming (flat oysters), with low density or mixed (flat and hollow oysters) along with higher density, has been taking place in the Arcachon basin oceanographic sectors, where main hydrobiological parameters were acquired simultaneously. The excellent growth of the flat oyster was witnessed in mono specific farming. However this growth was average in mixed farming, probably due to higher total oyster density and interspecies competition. Regardless of the type of farming, Marteilia refringens infection was very quick and may have been related to climatic bay water... |
| Tipo: Text |
Palavras-chave: Basin of Arcachon; Pathology; Bonamia ostreae; Marteilia refringens; Growth; Ostrea edulis; Bassin d'Arcachon; Pathologie; Bonamia ostreae; Marteilia refringens; Croissance; Ostrea edulis. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/1990/rapport-1592.pdf |
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| Vallejo-Isaza, A.; Newmark-U., F.. |
| An epizootiological study of the mayor deseases affecting the penaeid shrimp Penaeus vannamei was performed from june 1994 throuh august, 1995 in tree farms located on the colombian Carebbean coast. The presence and prevalence of infectious agents such as bacteria, protozoa, viral inclusions bodies and changes histopatologicals was determinated by means of gross examination and histological analysis.. The relationship between these infection agents and specific disease was also studies. The presence of some viruses such a Baculovirus penaei, IHHNV, TSV and LOVV, were determinated by demostration of the cytopathical effects characteristic of these agent. Additionaly, a logistic regression analysis was used to determine the relationship between some clinical... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp culture; Pathology; Pathology; Http://aims.fao.org/aos/agrovoc/c_5631. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/3383 |
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| Moreau, Pierrick. |
| The thesis work is part of the very current issue on mass mortality outbreaks affecting Pacific oyster, C. gigas, spat and juveniles and questions about the involvement of pesticides in this phenomenon. The first part of this thesis was devoted to study the effects of pesticides on hemocyte parameters in the Pacific oyster (in vitro and in vivo). The immunomodulator effect of selected pesticides (alone or in mixture) has been explored principally through flow cytometry. The second part concerned the study of the effects of a pesticides mixture on OsHV-1 itself. No direct effects have been reported on the viral particles in presence of the pollutants. Moreover, pesticide effects on Pacific oysters were also explored through experimental pathology assays... |
| Tipo: Text |
Palavras-chave: Pacific oyster; Pesticides; OsHV-1; Autophagy; Immunity; Hemocyte; Pathology. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00226/33740/32149.pdf |
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| Balouet, G.. |
| French summary: In 1974, at the request of a group of oyster farmers in the Brittany region, the Pathology Laboratory of the U.E.R. Medicine of Brest undertook a series of theoretical and applied research projects concerning the problem of flat oyster digestive gland disease, due to Marteilia refringens, the primary economic problem of that time. In 1978, in the research report of Contract C.N.E.X.O. 77/1690, the main results obtained since the beginning of the study of the parasitosis were made public. The present report has as its objective to show: - The results obtained in 1978-1979 while monitoring the parasitosis, and most especially the epidemiological evolution of the disease; - Information concerning the presence of other infectious diseases... |
| Tipo: Text |
Palavras-chave: Parasite; Ostrea edulis; Oyster; Pathology. |
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/1978/rapport-1927.pdf |
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| Martin, Anne-genevieve; Fleury, Pierre-gildas; Tige, Gilbert; Hirata, Toshio; Le Coguic, Marie-jo; Langlade, Aime; Mazurie, Joseph; Ostréiculteurs de la baie de Quiberon. |
| La question des mortalités estivales de naissains d'huîtres creuses en baie de Quiberon a été abordée selon deux approches complémentaires, l'une plus temporelle, avec le suivi estival régulier de quelques semis, l'autre plus spatiale avec une estimation en plongée des survies en fin d'été d'un plus grand nombre de semis répartis à travers la baie. Le suivi de l'évolution des semis a permis de dater et de quantifier les mortalités estivales sur plusieurs périodes (juin et août essentiellement) ; mais il n'a pas permis d'en identifier les causes. Le rôle des pathogènes, notamment, n'est pas défini. Par ailleurs, l'estimation spatiale des mortalités en fin d'été met en évidence des mortalités nettement différenciées entre les semis (entre 6 et 48%). Parmi... |
| Tipo: Text |
Palavras-chave: Huître creuse; Crassostrea gigas; Naissain; Quiberon; Mortalité; Croissance; Vitalité; Pathologie; Herpès-virus; Pacifie cupped oyster; Crassostrea gigas; Spat; Quiberon (France); Mortality; Growth; Vitality; Pathology; Herpes-virus. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00102/21326/18949.pdf |
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| Registros recuperados: 142 | |
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