Phylogenetic position of Fit insect toxin producing pseudomonads

Détails

ID Serval
serval:BIB_F98516CD507B
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Titre
Phylogenetic position of Fit insect toxin producing pseudomonads
Titre de la conférence
Biological Control in IPM Systems
Auteur(s)
Ruffner B, Péchy-Tarr M, Ryffel F, Keel C, Maurhofer M
Editeur
INRA / Unité de pathologie végétale
Adresse
Montfavet
ISBN
978-92-9067-241-8
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Editeur scientifique
Ehlers R.U., Crickmore N., Enkerli J., Glazer I., Kirchmair M., Lopez-Ferber M., Neuhauser S., Strasser H., Tkaczuk C., Traugott M.
Volume
66
Série
IOBC wprs bulletin
Pages
71-74
Langue
anglais
Notes
IOBC Working Group "Insect Pathogens and Entomopathogenic Nematodes". Preceedings of the 13th European Meeting "Biological Control in IPM Systems" at Innsbruck (Austria), 19 - 23 June, 2011
Résumé
Fit produced by Pseudomonas fluorescens CHA0 is a novel insect toxin in root colonizing pseudomonads, of which a homologue is described in Photorhabdus species.However, occurrence and abundance of insect pathogenicity in plant-associated pseudomonads is still unclear. An extensive screening outside the P. fluorescens complex identified strains of Pseudomonas chlororaphis as further Fit toxin producing candidates. Sequences of five different P. chlororaphis strains generated in this study were used to reconstruct the evolutionary history of the Fit toxin gene and to analyse its mode of evolution. We found that P. chlororaphis is closely associated with a small subgroup of 2,4-diacetylphloroglucinol and pyoluteorin- producing pseudomonads, both when analyzing four housekeeping genes and the nucleotide sequences for the Fit toxin gene. Additionally, we identified purifying selection to be the predominant mode of Fit toxin evolution.
Création de la notice
11/11/2011 10:38
Dernière modification de la notice
03/03/2018 22:54
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