Ontology highlight
ABSTRACT:
SUBMITTER: Bertin C
PROVIDER: S-EPMC2040483 | biostudies-other | 2007 Oct
REPOSITORIES: biostudies-other
Bertin Cécile C Weston Leslie A LA Huang Tengfang T Jander Georg G Owens Thomas T Meinwald Jerrold J Schroeder Frank C FC
Proceedings of the National Academy of Sciences of the United States of America 20071011 43
Fine fescue grasses displace neighboring plants by depositing large quantities of an aqueous phytotoxic root exudate in the soil rhizosphere. Via activity-guided fractionation, we have isolated and identified the nonprotein amino acid m-tyrosine as the major active component. m-Tyrosine is significantly more phytotoxic than its structural isomers o- and p-tyrosine. We show that m-tyrosine exposure results in growth inhibition for a wide range of plant species and propose that the release of this ...[more]