Co-expression and promoter content analyses assign a role in biotic and abiotic stress responses to plant natriuretic peptides.

ABSTRACT:

Background

Plant natriuretic peptides (PNPs) are a class of systemically mobile molecules distantly related to expansins. While several physiological responses to PNPs have been reported, their biological role has remained elusive. Here we use a combination of expression correlation analysis, meta-analysis of gene expression profiles in response to specific stimuli and in selected mutants, and promoter content analysis to infer the biological role of the Arabidopsis thaliana PNP, AtPNP-A.

Results

A gene ontology analysis of AtPNP-A and the 25 most expression correlated genes revealed a significant over representation of genes annotated as part of the systemic acquired resistance (SAR) pathway. Transcription of these genes is strongly induced in response to salicylic acid (SA

SUBMITTER: Meier S 

PROVIDER: S-EPMC2268938 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature