The molecular dialogue between Arabidopsis thaliana and the necrotrophic fungus Botrytis cinerea leads to major changes in host carbon metabolism.

摘要: Photoassimilates play crucial roles during plant-pathogen interactions, as colonizing pathogens rely on the supply of sugars from hosts. The competition for sugar acquisition at interface involves different strategies both partners which are critical outcome interaction. Here, we dissect individual mechanisms uptake interaction Arabidopsis thaliana with necrotrophic fungus Botrytis cinerea using millicell culture insert, that enables molecular communication without physical contact. We demonstrate B. is able to actively absorb glucose and fructose equal capacities. Challenged cells compete extracellular monosaccharides through transcriptional reprogramming host transporter genes activation a complex system displays differential specificity affinity hexoses. provide evidence dialogue between triggers major changes in metabolism, including apoplastic sucrose degradation consumption carbohydrates oxygen, suggesting an enhanced activity glycolysis cellular respiration. conclude beside role deprivation pathogen by competing availability apoplast, hexoses also contributes sustain increased respiratory metabolism fuel plant defences.