Distinct changes in soybean xylem sap proteome in response to pathogenic and symbiotic microbe interactions.

ABSTRACT:

Background

Plant systemic signaling characterized by the long distance transport of molecules across plant organs involves the xylem and phloem conduits. Root-microbe interactions generate systemic signals that are transported to aerial organs via the xylem sap. We analyzed the xylem sap proteome of soybean seedlings in response to pathogenic and symbiotic interactions to identify systemic signaling proteins and other differentially expressed proteins.

Results

We observed the increase of a serine protease and peroxidase in the xylem sap in response to Phytophthora sojae elicitor treatment. The high molecular weight fraction of soybean xylem sap was found to promote the growth of Neurospora crassa in vitro at lower concentrations and inhibit growth at higher concentrations. S

SUBMITTER: Subramanian S 

PROVIDER: S-EPMC2758885 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature