Holger Bruno Deising (born 18 October 1956) is a German agricultural scientist specialising in Phytomedicine and president of the German Phytomedicine Society.[1]
Born in Krummsee, Ostholstein, Germany, Deising attended primary and grammar school in Kronshagen and Kiel, and passed the school-leaving examinations in 1975, after which he did military service (1975–1976).
He completed his studies at Kiel University with a Diploma in Agricultural Engineering, after which he worked as a Biology Assistant at the same university (1982–1987), ending with a dissertation entitled Physiological and biochemical investigations on nitrate reduction in the bryophyte Sphagnum. Deising then moved to the Institute of Pathology and Constance University (1988 bis 1996), where he gained a Professorship with Venia Legendi for Plant Physiology and Phytomedicine in 1996 with the subject Biochemical investigation of differentiation of infection structures of the broad bean rust fungus Uromyces viciae-fabae.