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- PublicationMétadonnées seulementBelowground ABA boosts aboveground production of DIMBOA and primes induction of chlorogenic acid in maize(2009)
; ; ; Ton, Jurriaan - PublicationMétadonnées seulementPriming: getting ready for battle(2006)
; - PublicationMétadonnées seulementElucidating the role and regulation of callose in BABA-induced resistance(2006)
; ; - PublicationMétadonnées seulement
- PublicationMétadonnées seulementSignal signature of aboveground-induced resistance upon belowground herbivory in maize(2009)
; ; ; ; ; Ton, JurriaanP>Plants activate local and systemic defence mechanisms upon exposure to stress. This innate immune response is partially regulated by plant hormones, and involves the accumulation of defensive metabolites. Although local defence reactions to herbivores are well studied, less is known about the impact of root herbivory on shoot defence. Here, we examined the effects of belowground infestation by the western corn rootworm Diabrotica virgifera virgifera on aboveground resistance in maize. Belowground herbivory by D. v. virgifera induced aboveground resistance against the generalist herbivore Spodoptera littoralis, and the necrotrophic pathogen Setosphaeria turcica. Furthermore, D. v. virgifera increased shoot levels of 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), and primed the induction of chlorogenic acid upon subsequent infestation by S. littoralis. To gain insight into the signalling network behind this below- and aboveground defence interaction, we compiled a set of 32 defence-related genes, which can be used as transcriptional marker systems to detect activities of different hormone-response pathways. Belowground attack by D. v. virgifera triggered an ABA-inducible transcription pattern in the shoot. The quantification of defence hormones showed a local increase in the production of oxylipins after root and shoot infestation by D. v. virgifera and S. littoralis, respectively. On the other hand, ABA accumulated locally and systemically upon belowground attack by D. v. virgifera. Furthermore, D. v. virgifera reduced the aboveground water content, whereas the removal of similar quantities of root biomass had no effect. Our study shows that root herbivory by D. v. virgifera specifically alters the aboveground defence status of a maize, and suggests that ABA plays a role in the signalling network mediating this interaction. - PublicationMétadonnées seulementDetection, characterization and quantification of salicylic acid conjugates in plant extracts by ESI tandem mass spectrometric techniques(2012)
; - PublicationMétadonnées seulementAn Arabidopsis homeodomain transcription factor, OVEREXPRESSOR OF CATIONIC PEROXIDASE 3, mediates resistance to infection by necrotrophic pathogens(2005)
; ; Vera, Pablo - PublicationMétadonnées seulementRole of two UDP-Glycosyltransferases from the L group of arabidopsis in resistance against pseudomonas syringae(2014)
; ; - PublicationMétadonnées seulementAbscisic acid and callose: team players in defence against pathogens?(2005)
; - PublicationMétadonnées seulementDescendants of primed Arabidopsis plants exhibit resistance to biotic stress(2012)
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