| nocardia crassostreae sp. nov., the causal agent of nocardiosis in pacific oysters. | seven strains of bacteria were isolated from pacific oysters, crassostrea gigas, with a focal or systemic disease. the strains were aerobic, gram-positive, acid-fast, produced a mycelium which fragmented into irregular rod-like elements, had a peptidoglycan containing meso-diaminopimelic acid, arabinose and galactose as major sugars, mycolic acids with 46-58 carbon atoms and g + c-rich dna. all of these properties are consistent with the classification of the organisms in the genus nocardia. a p ... | 1998 | 9542093 |
| nocardia inohanensis sp. nov., nocardia yamanashiensis sp. nov. and nocardia niigatensis sp. nov., isolated from clinical specimens. | comparative 16s rdna studies on six strains of actinomycete isolated from clinical specimens revealed that they belong to the genus nocardia and are closely related to nocardia seriolae, nocardia otitidiscaviarum, nocardia uniformis, nocardia pseudobrasiliensis and nocardia crassostreae. however, the novel organisms consistently formed a clade distinct from that of the five latter species. determination of dna-dna relatedness indicated that these strains could be classified under three novel spe ... | 2004 | 15023976 |
| first isolation of nocardia crassostreae from pacific oyster crassostrea gigas in europe. | in summer 2006 an extensive mortality of pacific oysters crassostrea gigas occurred in lake grevelingen, the netherlands. a sample of pacific oysters was investigated for the presence of shellfish pathogens as potential causes of the mortality. yellow-green lesions were observed in several oysters upon clinical inspection. histopathology showed that 6 out of 36 oysters had a suspected bacterial infection, including 4 nocardia-like infections. two bacterial species, vibrio aestuarianus and nocard ... | 2008 | 18814548 |
| development of a real-time pcr for detection of the oyster pathogen nocardia crassostreae based on its homogeneous 16s-23s rrna intergenic spacer region. | nocardia crassostreae, the causative agent of pacific oyster nocardiosis (pon), is a gram-positive actinomycete bacterium associated with pacific oyster (crassostrea gigas) mortalities. oysters infected with this bacterium have been reported previously from the west coast of north america and japan. more recently, n. crassostreae was reported in oyster culture areas in the netherlands. in this study, a sensitive real-time pcr for specific detection of n. crassostreae was developed, and the intra ... | 2013 | 23876658 |
| nocardiosis in mediterranean bivalves: first detection of nocardia crassostreae in a new host mytilus galloprovincialis and in ostrea edulis from the gulf of naples (italy). | in this work m. galloprovincialis and o. edulis specimens were surveyed for a pathological study in the gulf of naples (mediterranean sea, campania region, southern italy). clusters of nocardia sp.-like cells were observed in histological slides. pcr amplification, sequencing and in situ hybridization were carried out in order to corroborate nocardia species identification for both hosts. blast results showed a 99% of maximum identity with nocardia crassostreae sequences in genbank. this is the ... | 2013 | 24140500 |
| molecular identification and susceptibility pattern of clinical nocardia species: emergence of nocardia crassostreae as an agent of invasive nocardiosis. | nocardia species are rare, opportunistic organisms that cause disease in both immunocompetent and immunocompromised individuals. | 2013 | 24421815 |
| first human infection of nocardia crassostreae in an immunocompetent patient. | | 2016 | 26712447 |