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Nat Genet. 2000 Dec;26(4):403-10.

The transcriptome of Arabidopsis thaliana during systemic acquired resistance.

Author information

1
Syngenta, Research Triangle Park, North Carolina, USA.

Abstract

Infected plants undergo transcriptional reprogramming during initiation of both local defence and systemic acquired resistance (SAR). We monitored gene-expression changes in Arabidopsis thaliana under 14 different SAR-inducing or SAR-repressing conditions using a DNA microarray representing approximately 25-30% of all A. thaliana genes. We derived groups of genes with common regulation patterns, or regulons. The regulon containing PR-1, a reliable marker gene for SAR in A. thaliana, contains known PR genes and novel genes likely to function during SAR and disease resistance. We identified a common promoter element in genes of this regulon that binds members of a plant-specific transcription factor family. Our results extend expression profiling to definition of regulatory networks and gene discovery in plants.

PMID:
11101835
DOI:
10.1038/82521
[Indexed for MEDLINE]

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