Dynamics of membrane potential variation and gene expression induced by Spodoptera littoralis, Myzus persicae, and Pseudomonas syringae in Arabidopsis.

ABSTRACT:

Background

Biotic stress induced by various herbivores and pathogens invokes plant responses involving different defense mechanisms. However, we do not know whether different biotic stresses share a common response or which signaling pathways are involved in responses to different biotic stresses. We investigated the common and specific responses of Arabidopsis thaliana to three biotic stress agents: Spodoptera littoralis, Myzus persicae, and the pathogen Pseudomonas syringae.

Methodology/principal findings

We used electrophysiology to determine the plasma membrane potential (V(m)) and we performed a gene microarray transcriptome analysis on Arabidopsis upon either herbivory or bacterial infection. V(m) depolarization was induced by insect attack; however, the response was m

SUBMITTER: Bricchi I 

PROVIDER: S-EPMC3484130 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature