Transcriptional analysis of wheat seedlings inoculated with Fusarium culmorum under continual exposure to disease defence inductors

Abstract

18A facultative parasite of cereals, Fusarium culmorum is a soil-, air-and seed-borne fungus causing foot 19 and root rot, fusarium seedling blight, and especially Fusarium head blight, a spike disease leading to 20 decreased yield and mycotoxin contamination of grain. In the present study, we tested changes in 21 expression of wheat genes (B2H2, ICS, PAL, and PR2) involved in defence against diseases. We first 22 2 36 under all treatments for the B2H2 gene. Only expression of PAL under the ergosterol and prochloraz 37 treatments were not statistically significant. 38 39 Keywords Fusarium head blight, Fusarium seedling blight, aescin, ergosterol, sodium bicarbonate, 40 chitinase, qPCR, potassium iodide 41 42