Assessment of the genetic diversity of Xanthomonas axonopodis pv. phaseoli and Xanthomonas fuscans subsp fuscans as a basis to identify putative pathogenicity genes and a type III secretion system of the SPI-1 family by multiple suppression subtractive hybridisations

Seyed Mehdi Alavi 1 Seyed Sanjari 1 Fabien Durand 1 Christelle Brin 1 Charles Manceau 1 Stéphane Poussier 2, *
* Auteur correspondant
1 Pavé
PaVé - Pathologie Végétale
Abstract : Fluorescent amplified fragment length polymorphism revealed that strains of Xanthomonas axonopodis pv. phaseoli and Xanthomonas fuscans subsp. fuscans are genetically distinct and can be grouped into four genetic lineages. Four suppression subtractive hybridizations were then performed to isolate DNA fragments present in these bean pathogens and absent from closely related xanthomonads. Virulence gene candidates were identified such as homologs of hemagglutinins, TonB-dependent receptors, zinc-dependent metalloproteases, type III effectors, and type IV secretion system components. Unexpectedly, homologs of the type III secretion apparatus components (SPI-1 family), usually reported in animal pathogens and insect symbionts, were also detected.
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Applied and Environmental Microbiology, American Society for Microbiology, 2008, 74 (10), pp.3295-3301. 〈10.1128/​AEM.02507-07〉
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Seyed Mehdi Alavi, Seyed Sanjari, Fabien Durand, Christelle Brin, Charles Manceau, et al.. Assessment of the genetic diversity of Xanthomonas axonopodis pv. phaseoli and Xanthomonas fuscans subsp fuscans as a basis to identify putative pathogenicity genes and a type III secretion system of the SPI-1 family by multiple suppression subtractive hybridisations. Applied and Environmental Microbiology, American Society for Microbiology, 2008, 74 (10), pp.3295-3301. 〈10.1128/​AEM.02507-07〉. 〈hal-00729841〉

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