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Trends Plant Sci. 2005 Feb;10(2):71-8.

Regulation of the Arabidopsis defense transcriptome.

Author information

1
Center for Plant Cell Biology, Department of Botany and Plant Sciences, 3214 Batchelor Hall, University of California, Riverside, CA 92521, USA. thomas.eulgem@ucr.edu

Abstract

Transcriptional re-programming is a key step of plant defense in response to pathogen recognition. Microarray analyses combined with genetic and biochemical approaches are now enabling us to study basic principles and details of regulatory mechanisms controlling the defense transcriptome in Arabidopsis. Recent results show that signaling pathways used by different defense systems converge and target overlapping gene sets. Furthermore, a quantitative mechanism common to multiple defense systems modulates transcript levels of these defense-associated genes. Most importantly, some transcription factors have been proven to play a pivotal role in disease resistance. Regulatory circuits linking signaling and gene regulation are emerging, suggesting that a complex interplay of transcriptional activators and repressors fine-tunes expression of the defense transcriptome.

PMID:
15708344
DOI:
10.1016/j.tplants.2004.12.006
[Indexed for MEDLINE]

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