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Screening for differential gene expression in Atropa belladonna leafy gall induced following Rhodococcus fascians infection

par Nouar, El Hassan ;Vereecke, Danny;Goethals, Koen;El Jaziri, Mondher ;Baucher, Marie
Référence European Journal of Plant Pathology, 109, 4, page (327-330)
Publication Publié, 2003

Article révisé par les pairs

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Résumé :

To better characterise at the molecular level the nature of plant responses to infection by Rhodococcus fascians PCR-based differential display patterns of Atropa belladonna leafy gall (LG) and non-infected plant tissues were compared. Six differentially expressed genes were identified and their altered expression was confirmed by RT-PCR. Three of them corresponded to up-regulated genes which encode proteins involved in plant defence. The three remaining cDNA fragments which correspond to down-regulated genes in LG, encoded proteins with similarity to a multicystatin, a miraculin and a methallothionein-like protein, respectively. Upon elimination of the bacteria from infected plant tissue, the expression of up-regulated genes was maintained, whereas expression of down-regulated genes resumed suggesting a potential role of these up-regulated genes in plant growth and development.