Regulation of Cyanogenic Glucosides in Sorghum bicolor ROSATIVIVIANA CARLOTTA 2019 This thesis investigates the regulation of the defence compound dhurrin in the cereal crop sorghum, from the molecular to physiological level. The results of this thesis suggest a role for cytosine methylation in dhurrin regulation and identify the first candidate regulators of the key dhurrin biosynthetic gene, CYP79A1.