The Unit of Fruit Sciences is part of the Centre of Life and Food Sciences at Technical University of Munich in Freising-Weihenstephan. In 2006, TUM was awarded the elite status by the German Science Council and Deutsche Forschungsgemeinschaft. TUM holds the only running and ongoing breeding programme for European plum in Germany. There is a broad range of research projects carried out on the fields of fruit breeding and physiology of temperate fruit crops. TUM holds close contact to both nurseries and fruit growers as well as to fruit market organisations in order to fasten the introduction of new and innovative fruit varieties.
Key persons involved
Prof. Dr. Dieter Treutter
Physiologist, is head of the unit of Fruit Science and has more than 20 years experience in the analysis and histochemical localisation of defence related metabolites in plants as well as in their isolation, identification and in their physiological role.
Dr. Michael Neumüller
Head of the working group “Fruit breeding and Applied Phytopathology” within the Unit of Fruit Science, has profoung expertise in breeding of temperate fruit trees with special focus on Prunus domestica. He developed a system for reliable PPV resistance tests and carries out detailed studies on the inheritance of PPV resistance in Prunus domestica. He aims at the development of early selection methods in stone fruit breeding. He is specialist in interspecific hybridization of P. domestica and its relatives. Currently, his research focusses on the inheritance and genetical determination of hypensitivity resistance of P. domestica againt Plum pox virus.
Fischer T. C., Halbwirth H., Roemmelt S., Sabatini E., Schlangen K., Andreotti C., Spinelli F., Costa G., Forkmann G., Treutter D., Stich K. (2006) Induction of polyphenol gene expression in apple (Malus x domestica) after the application of a dioxygenase inhibitor. Physiologia Plantarum 128: 604–617.
Treutter D. (2005) Significance of Flavonoids in Plant Resistance and Enhancement of Their Biosynthesis. Plant Biology 7, 581-591
Neumüller, M., Hartmann, W. and Stösser, R. (2005): The hypersensitivity of European Plum against PPV as a promising mechanism of resistance. Phytopathologia Polonica 36: 77–83.
Hartmann, W. und Neumüller, M. (2006): Breeding for resistance: breeding for Plum pox virus resistant plums (Prunus domestica L.) in Germany. EPPO Bulletin 36 (2), 332–336.
Neumüller, M., Hartmann, W. and Stösser, R., 2007. Inheritance of Hypersensitivity of European Plum (Prunus × domestica L.) against Plum Pox Virus (PPV). Acta Hort. (ISHS) 734:69-76.
Facilities for PPV detection (ELISA, RT-PCR); Tissue lab (mass propagation of hypersensitive rootstocks); collection of more than 20 PPV-strains for resistance tests; experimental orchards with a gene bank Prunus domestica with more than 600 cultivars from all over the world; running plum breeding program with about 7,000 seedlings; experience in embryo rescue techniques and in vitro germination for growing of plum seedlings; phytotrones; laboratory for histological studies equipped with several microscopes and microtomes. A laser scanning microscope is available at the campus; chemical laboratory for analysis of potential signals (salicylic acid) by chromatographic techniques (HPLC, TLC, CC).