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Transgenic potato plants expressing oxalate oxidase have increased resistance to oomycete and bacterial pathogens

Schneider, M. ; Droz, E. ; Malnoë, Pia ; Chatot, Catherine ; Bonnel, E. ; Métraux, J.

In: Potato Research, 2002, vol. 45, no. 2-4, p. 177-185

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    Titre
    • Transgenic potato plants expressing oxalate oxidase have increased resistance to oomycete and bacterial pathogens
    Auteur
    • Schneider, M.. Département de Biologie-Biologie végétale, Université de Fribourg, ch. du musée 10, CH 1700, Fribourg, Switzerland
    • Droz, E.. Station fédérale de Changins (RAC), Route de Duillier, Case postale 254, CH-1260, Nyon, Switzerland
    • Malnoë, Pia. Station fédérale de Changins (RAC), Route de Duillier, Case postale 254, CH-1260, Nyon, Switzerland
    • Chatot, Catherine. Germicopa, allée Loeiz Herrieu, F-29334, Quimper Cedex, France
    • Bonnel, E.. Germicopa, allée Loeiz Herrieu, F-29334, Quimper Cedex, France
    • Métraux, J.. Département de Biologie-Biologie végétale, Université de Fribourg, ch. du musée 10, CH 1700, Fribourg, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Potato Research, 2002, vol. 45, no. 2-4, p. 177-185. Springer Netherlands
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:318951
    Summary
    Summary: Potato (cv. Bintje) was transformed with a gene encoding an oxalate oxidase from wheat under the control of the CaMV35S promoter. Transgenic potato plants produced high constitutive levels of H2O2 as visualized by 4-chloro-l-naphtol staining. The resistance of these plants was tested againstPhytophthora infestans. An increased level of resistance to the disease was marked by a reduced number of lesions as well as by a decreased number of sporangia formed per lesion. In addition, oxalate oxidase overexpressing plants also exhibited improved resistance toStreptomyces reticuliscabiei, the causal agent of netted scab. Increased expression of oxalate oxidase had no effect on the interaction withErwinia carotovora. These experiments show that overexpression of oxalate oxidase represents a potentially interesting approach for protection of potato to pathogens