Metabolic profiling reveals local and systemic responses of host plants to nematode parasitism.

ABSTRACT: The plant parasitic beet cyst nematode Heterodera schachtii induces syncytial feeding structures in Arabidopsis roots. The feeding structures form strong sink tissues that have been suggested to be metabolically highly active. In the present study, metabolic profiling and gene targeted expression analyses were performed in order to study the local and systemic effects of nematode infection on the plant host. The results showed increased levels of many amino acids and phosphorylated metabolites in syncytia, as well as high accumulation of specific sugars such as 1-kestose that do not accumulate naturally in Arabidopsis roots. A correlation-based network analysis revealed highly activated and coordinated metabolism in syncytia compared to non-infected control roots. An integrated analysis of

SUBMITTER: Hofmann J 

PROVIDER: S-EPMC2904900 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature