Specific activation of PR-10 pathogenesis-related genes in apple by an incompatible race of Venturia inaequalis

被引：7

作者：

Chevalier, M. ^{[1
]}

Parisi, L. ^{[2
]}

Gueye, B. ^{[3
]}

Campion, C. ^{[3
]}

Simoneau, P. ^{[3
]}

Poupard, P. ^{[3
]}

机构：

[1] Ctr INRA Angers, UMR GENHORT 1259, Unite Ameliorat Especes Fruitieres & Ornementales, F-49071 Beaucouze, France

[2] Ctr INRA Angers, UMR PAVE 77, Unite Pathol Vegetale, F-49071 Beaucouze, France

[3] Univ Angers, UFR Sci, F-49045 Angers 01, France

来源：

BIOLOGIA PLANTARUM | 2008年 / 52卷 / 04期

关键词：

Alternaria brassicicola; resistance mechanisms; Malus x domestica; Venturia pyrina;

D O I：

10.1007/s10535-008-0138-9

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Apple (Malus x domestica Borkh. cv. Golden Delicious) trees were inoculated with fungal pathogens, corresponding either to an incompatible strain of Venturia inaequalis or to non-host pathogens (Venturia pyrina, Alternaria brassicicola) in order to characterize the regulation of PR-10 genes in these different situations in relationship to symptom development. Macro- and microscopic observations of the plant-fungus interactions revealed typical symptoms of resistance with V. inaequalis and symptoms of hypersensitivity (HR) on around 5 % of leaves with V. pyrina. No HR was microscopically observed with A. brassicicola. In the non-host situations, the PR-10 expression in leaves at the transcriptional level was not (A. brassicicola) or very slightly (V. pyrina) activated. This strongly suggests that PR-10 is not a component of the non-host resistance in the interactions studied here. By contrast specific up-regulation of PR-10 was evident after inoculation with V. inaequalis.

引用

页码：718 / 722

页数：5

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