Diagnosis of bacterial sheath brown rot of rice (Pseudomonas fuscovaginae)

Rott Philippe, Nottéghem Jean-Loup, Honegger J., Ranomenjanahary S.. 1989. Diagnosis of bacterial sheath brown rot of rice (Pseudomonas fuscovaginae). In : Proceedings of the 7th International Conference on Plant Pathogenic Bacteria, 11-16 June, 1989, Budapest (Hungary). Z. Klement (ed.). Budapest : ISPP, Résumé, 641. International Conference on Plant Pathogenic Bacteria. 7, Budapest, Hongrie, 11 Juin 1989/16 Juin 1989.

Autre titre : Diagnostic de la pourriture brune des gaines foliaires du riz (Pseudomonas fuscovaginae)

Résumé : Three identification tests were assessed for rapid and accurate diagnosis of bacterial sheath brown rot of rice caused by Pseudomonas fuscovaginae: - a biochemical profile comprised of eight characteristics: levan and 2 ketogluconate production, presence of cytochrome C oxidase and of arginine dihydrolase, production of acids from inositol, sucrose, sorbitol and trehalose; - antigenicity, by tube agglutination, with an antiserum to a strain of P. fuscovaginae from Madagascar. - pathogenicity on rice seedlings. They were applied to seven known strains of P. fuscovaginae and to 136 fluorescent bacterial strains isolated from rice plants originating from Brazil, Cameroon, Madagascar, Réunion and Rwanda. Application of at least two out of three tests was required in order to distinguish P. fuscovaginae from other fluorescent pseúdomonads. The presence of the pathogen was confirmed in Madagascar and Rwanda. (Texte intégral)

Mots-clés Agrovoc : riz, maladie des plantes, maladie fongique, Pseudomonas fuscovaginae, diagnostic

Classification Agris : H20 - Maladies des plantes

Auteurs et affiliations

• Rott Philippe ORCID: 0000-0001-6085-6159
• Nottéghem Jean-Loup
• Honegger J.
• Ranomenjanahary S.

Source : Cirad - Agritrop (https://agritrop.cirad.fr/434895/)

Métriques

[ Page générée et mise en cache le 2024-04-19 ]