Biosynthesis of N-acyl glutamines in the insect gut: impact and characterisation of microbial enzymes [Elektronische Ressource] / vorgelegt von Liyan Ping

Biosynthese von N-Acylglutaminen im Insektendarm: Beteiligung und Charakterisierung bakterieller Enzyme Dissertation zur Erlangung des akademischen Grades doktor rerum naturalium (Dr. Rer. Nat.) vorgelegt dem Rat der Biologisch-Pharmazeutischen Fakultät der Friedrich-Schiller-Universität Jena vorgelegt von M. S. Liyan Ping geboren am August 21, 1972 in Hebei, VR China Biosynthesis of N-acyl glutamines in the insect gut: impact and characterisation of microbial enzymes Dissertation Faculty for Biology and Pharmacy Friedrich-Schiller-University in Jena M. S. Liyan Ping Date of birth: August 21, 1972 in Hebei, P.R. China Gutachter: 1. Prof. Dr. W. Boland. FRSC 2. Prof. Dr. E. Kothe 3. Prof. Dr. G. Diekert 4. Prof. Dr. J. Wöstemeyer 5. Prof. Dr. A. Brakhage Supervisors: 1. Prof. Dr. Wilhelm Boland 2. Prof. Dr. Erika Kothe 3. Prof. Dr. Joern Piel Summary Summary N-acyl amino acids were first isolated and identified from insect gut as elicitors of the host plant’s defence reactions (Alborn et al. 1997). Up to date, no experimental proof for a role of these compounds for the physiology of insects has been found. Due to their amphiphilic nature, a reasonable function as bioemulsifiers has been postulated (Spiteller 2002).