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Polyphasic characterization of xanthomonads pathogenic to members of the Anacardiaceae and their relatedness to species of Xanthomonas

Ah-You Nathalie, Gagnevin Lionel, Grimont Patrick A. D., Brisse Sylvain, Nesme Xavier, Chiroleu Frédéric, Bui Thi Ngoc Lan, Jouen Emmanuel, Lefeuvre Pierre, Vernière Christian, Pruvost Olivier. 2009. Polyphasic characterization of xanthomonads pathogenic to members of the Anacardiaceae and their relatedness to species of Xanthomonas. International Journal of Systematic and Evolutionary Microbiology, 59 (2) : pp. 306-318.

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Quartile : Q3, Sujet : MICROBIOLOGY

Abstract : We have used amplified fragment length polymorphism (AFLP), multilocus sequence analysis (MLSA) and DNA-DNA hybridization for genotypic classification of Xanthomonas pathovars associated with the plant family Anacardiaceae. AFLP and MLSA results showed congruent phylogenetic relationships of the pathovar mangiferaeindicae (responsible for mango bacterial canker) with strains of Xanthomonas axonopodis subgroup 9.5. This subgroup includes X. axonopodis pv. citri (synonym Xanthomonas citri). Similarly, the pathovar anacardii, which causes cashew bacterial spot in Brazil, was included in X. axonopodis subgroup 9.6 (synonym Xanthomonas fuscans). Based on the thermal stability of DNA reassociation, consistent with the AFLP and MLSA data, the two pathovars share a level of similarity consistent with their being members of the same species. The recent proposal to elevate X. axonopodis pv. citri to species level as X. citri is supported by our data. Therefore, the causal agents of mango bacterial canker and cashew bacterial spot should be classified as pathovars of X. citri, namely X. citri pv. mangiferaeindicae (pathotype strain CFBP 1716) and X. citri pv. anacardii (pathotype strain CFBP 2913), respectively. Xanthomonas fuscans should be considered to be a later heterotypic synonym of Xanthomonas citri. (Résumé d'auteur)

Mots-clés Agrovoc : Anacardiaceae, Xanthomonas

Mots-clés géographiques Agrovoc : Réunion

Mots-clés complémentaires : Xanthomonas citri pv citri, Xanthomonas citri pv mangiferaeindicae

Classification Agris : H20 - Plant diseases

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Ah-You Nathalie, Université de la Réunion (REU)
  • Gagnevin Lionel, CIRAD-BIOS-UMR PVBMT (REU)
  • Grimont Patrick A. D., Institut Pasteur (FRA)
  • Brisse Sylvain, Institut Pasteur (FRA)
  • Nesme Xavier, CNRS (FRA)
  • Chiroleu Frédéric, CIRAD-BIOS-UMR PVBMT (REU) ORCID: 0000-0002-4874-5357
  • Bui Thi Ngoc Lan
  • Jouen Emmanuel, Université de la Réunion (REU)
  • Lefeuvre Pierre, Université de la Réunion (REU)
  • Vernière Christian, CIRAD-BIOS-UMR PVBMT (REU) ORCID: 0000-0002-2312-2073
  • Pruvost Olivier, CIRAD-BIOS-UMR PVBMT (REU)

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Source : Cirad - Agritrop (https://agritrop.cirad.fr/547864/)

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