Transcriptome analysis of Arabidopsis colonized by a plant-growth promoting rhizobacterium reveals a general effect on disease resistance

被引：83

作者：

Cartieaux, F

Thibaud, MC

Zimmerli, L

Lessard, P

Sarrobert, C

David, P

Gerbaud, A

Robaglia, C

Somerville, S

Nussaume, L ^{[1
]}

机构：

[1] CEA Cadarache, DSV DEVM, UMR CNRS CEA Univ Mediterranee 163, Lab Biol Dev Plantes, F-13108 St Paul Les Durance, France

[2] Carnegie Inst, Dept Plant Biol, Stanford, CA 94305 USA

[3] CEA Cadarache, DSV DEVM, UMR CNRS CEA Univ Mediterranee 163, Lab Genet & Biophys Plantes, F-13108 St Paul Les Durance, France

来源：

PLANT JOURNAL | 2003年 / 36卷 / 02期

关键词：

DNA microarrays; molecular phenotype; pathogen resistance; photosynthesis; Pseudomonas sp; rhizobacteria;

D O I：

10.1046/j.1365-313X.2003.01867.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

RNA transcript levels of Arabidopsis plants, infected by the rhizobacterium Pseudomonas thivervalensis (strain MLG45), and axenic control plants were compared using cDNA microarrays representing approximately 14 300 genes. The analysis revealed an increase of defence-related transcripts in the shoots of bacterized plants relative to control (axenic) plants. These modifications of transcript levels were confirmed by physiological experiments. Plants infected with P. thivervalensis were more resistant to subsequent infections by the virulent pathogen P. syringae pv. tomato (strain DC3000) than control plants. In addition, photosynthesis rates were repressed consistently with the reduced growth of plants colonized by P. thivervalensis. These results highlight the value of molecular phenotyping to predict physiological changes.

引用

页码：177 / 188

页数：12

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