title: Gene expression analysis of molecular mechanisms of defense induced in Medicago truncatula parasitized by Orobanche crenata.
abstract: The infection of Medicago truncatula Gaertn. roots with the obligate parasite Orobanche crenata Forsk. is a useful model for studying the molecular events involved in the legumes-parasite interaction. In order to gain insight into the identification of gene-regulatory elements involved in the resistance mechanism, the temporal expression pattern of ten defense-related genes was carried out using real-time quantitative reverse-transcription polymerase chain reaction assays. The induction of all of the analyzed transcripts significantly increased over a range from 2- to 321-fold higher than the control depending on the gene and time point. The transcriptional changes observed in response to O. crenata infection suggest that resistance could rely on both, the induction of general defense-related genes and more specific responses.
authors.affiliation: IFAPA, Centro "Alameda del Obispo", Mejora y Biotecnología, S/N Apdo, 4084, 14004 Córdoba, Spain. josev.die@juntadeandalucia.es
authors.forename: José Vicente
authors.initials: JV
authors.lastname: Die
authors.forename: Clara I
authors.initials: CI
authors.lastname: González Verdejo
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Dita
authors.forename: Salvador
authors.initials: S
authors.lastname: Nadal
authors.forename: Belén
authors.initials: B
authors.lastname: Román