Oligogalacturonide production upon Arabidopsis thaliana-Botrytis cinerea interaction.

ABSTRACT: Despite an ever-increasing interest for the use of pectin-derived oligogalacturonides (OGs) as biological control agents in agriculture, very little information exists-mainly for technical reasons-on the nature and activity of the OGs that accumulate during pathogen infection. Here we developed a sensitive OG profiling method, which revealed unsuspected features of the OGs generated during infection of Arabidopsis thaliana with the fungus Botrytis cinerea Indeed, in contrast to previous reports, most OGs were acetyl- and methylesterified, and 80% of them were produced by fungal pectin lyases, not by polygalacturonases. Polygalacturonase products did not accumulate as larger size OGs but were converted into oxidized GalA dimers. Finally, the comparison of the OGs and transcrip

SUBMITTER: Voxeur A 

PROVIDER: S-EPMC6765270 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature