ABS19353

Effect of a bioprotectant on Resistance Gene Expression in Wheat


  • Oral Presentation
  • Plant Pathology
  • 12 Jun 2018 09:40
  • FS-G01, UCD Agriculture and food science Centre
  • View all IPSAM abstracts

Tony Twamley*
UCD School of Agriculture and Food Science

Mark Gaffney
Alltech, Dunboyne, Co. Meath

Angela Feechan
UCD School of Agriculture and Food Science

*Presenting Author


Wheat is a staple dietary component and the most extensively grown crop in the world. However, high yield losses are recorded globally each year due to fungal pathogens. As a block, Europe is the highest wheat producer in the world and due to high intensive cultivation, also accounts for about 80% of the worldwide cereal fungicide market. Since many fungal pathogens build up resistance to fungicides, novel and alternative methods of pathogen control need to be developed. An innovative approach to improving productivity in crops challenged by biotic stress, is to stimulate the plant’s own defence mechanisms. In a primed state, plants may better respond to biotic and abiotic stresses. The aim of the present project is to determine if a fermentation-based bioprotectant can prime plant defences by inducing the expression of endogenous defence-related genes. To date, results have suggested that such a bioprotectant may have the capacity to affect the expression of genes associated with the salicylic acid dependent signalling pathway. The functions of these genes have been associated with elicited defence responses to specific biotrophic pathogens, such as powdery mildew. Future work will seek to better elucidate the genes and pathways that are induced by the bioprotectant to mediate a plant defence response in wheat.