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Savoirs et transmission des savoirs entre les pêcheurs : discussion de l'approche méthodologique à partir de l'expérience de recherche menée au "Centre d'Estudies del Mar" (CEM), Diputacio de Barcelona IRD
Breton, F..
"Experience" includes all the theorical or practical knowledge required for a fisherman to exercise his trade. This experience is based on concrete social structures, on cultural customs : a context that is expressed in terms of language, behaviour and a system of values. A classification has been made of experience from the point of view of fishermen, by means of random sampling, by long unstructured interviews and by monitoring fishing activity. In the second stage, a relationship was sought between experience and the type of fishing, age, geographical origin and work specialisation on board. Preliminary results have enabled a strategy of work in the field to be drawn up. (Résumé d'auteur)
Tipo: Text Palavras-chave: PECHE ARTISANALE; PECHEUR; STRUCTURE SOCIALE; TRADITION; ETUDE THEORIQUE; ANALYSE QUALITATIVE; TRAITEMENT DE DONNEES; CODIFICATION; TRANSMISSION DU SAVOIR.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:36765
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Structural analysis of cassiicolin, a host-selective protein toxin from Corynespora cassiicola Inra
Barthe, P.; Pujade-Renaud, V.; Breton, F.; Gargani, D.; Thai, R.; Roumestand, C.; De Lamotte, F..
Cassiicolin is a host-selective toxin (HST) produced by the fungus Corynespora cassiicola (strain CCP). It is responsible for the Corynespora leaf fall (CLF) disease, which is among the main pathologies affecting rubber tree (Hevea brasiliensis). Working on purified cassiicolin and using electron microscopy, we have demonstrated that this 27-residue O-glycosylated protein is able to induce cellular damages identical to those induced by the fungus on rubber tree leaves and displays the same host selectivity. The solution structure and disulfide pairing of cassiicolin have been determined using NMR spectroscopy and simulated annealing calculations. Cassiicolin appears to have an original structure with a prolate ellipsoid shape. It adopts an over-all fold...
Tipo: Journal Article Palavras-chave: STRUCTURE 3D HST; NMR STRUCTURE; POST-TRANSLATIONAL MODIFICATIONS; PATHOGENICITY; HOST SELECTIVE TOXIN.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008998eec19&uri=/notices/prodinra1/2008/08/
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