Faculty of Biology and Psychology
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GGNB Poeggeler, S

Address
Prof. Dr. Stefanie Pöggeler
Department of Genetics of Eukaryotic Microorganisms
Grisebachstr. 8
37077 Göttingen
Germany

Tel.: +49-551-39 13930
Fax: +49-551-39 10123
e-mail: spoegge@gwdg.de





Affiliation

Prof. Dr. Stefanie Pöggeler


Professor of Genetics of Eukaryotic Microorganisms

  • 1993 Dr. rer. nat., Ruhr-Universität Bochum
  • 1993-1995 Research associate
  • 1995-2001 Postdoctoral research fellow and group leader
  • 1997 Visiting Scientist, Institut de Génétique et Microbiologie, Laboratory of Dr. D. Zickler, Université Paris-Sud, Orsay, France
  • 2000 Habilitation (Botany), Ruhr-Universität Bochum
  • 2001-2003 Associate Professor of Botany (stand-in), University of Münster
  • 2003-2006 University lecturer (Hochschuldozentin) and group leader, Ruhr-Universität Bochum
  • since 2006 Associate Professor of Genetics of Eukaryotic Microorganisms, Georg-August-Universität Göttingen




Major Research Interests
Fruiting-body development in filamentous ascomycetes
Fruiting-body development in filamentous ascomycetes is a complex cellular differentiation process that requires special environmental conditions and is controlled by many developmentally regulated genes. We are interested in the genes regulating this development process. We use the homothallic (self-fertile) ascomycete Sordaria macrospora as a model organism. Numerous mutants which are blocked at various stages of fruiting-body development have been generated and molecular genetic procedures have been applied to isolate genes involved in fruiting-body development. In addition to mutants generated by chemical mutagenesis, several mutants affecting fruiting-body development were produced by knock-out of mating-type genes, pheromone and receptor genes, as well as genes involved in autophagy and bicarbonate metabolism.

Fungal inteins
An intein is a self-catalytic protein-intervening sequence that catalyses its precise excision from a host protein and the ligation of its flanking sequences, termed N- and C-exteins, to produce the mature spliced product. Protein splicing is a posttranslational event that releases an internal intein sequence from a protein precursor. Projects in the lab aim to analyse the splicing activity of inteins detected in the prp8 gene of fungi. Because of their compactness and high splicing activity inside foreign proteins, fungal PRP8 inteins may be used for the development of new intein-mediated protein-engineering applications such as protein purification, addition of fluorescent biosensors and expression of cytotoxic proteins.


Selected Recent Publications

  • Elleuche S, Pöggeler S (2009) Carbonic anhydrases play a role in fruiting body development and ascospore germination in the filamentous fungus Sordaria macrospora PlosOne: 4:e5177

  • Nolting N, Bernhards, Y, Pöggeler S (2009) SmATG7 is required for viability in the homothallic ascomycete Sordaria macrospora. Fung Genet Biol 46:531-542

  • Storlazzi A, Tesse S, Ruprich-Robert G, Gargano S, Pöggeler S, Kleckner N, Zickler D (2008) Coupling meiotic chromosome axis integrity to recombination. Genes Dev 15:796-809

  • Elleuche S, Döring K, Pöggeler S (2008) Minimization of a eukaryotic mini-intein. Biochem Biophys Res Com 366:239-243

  • Hoff B, Pöggeler S, Kück U (2008) Eighty years after its discovery Fleming’s Penicillium strain discloses the secret of its sex. Eukaryot Cell 7:465-470

  • Nolting N, Pöggeler S (2006) A STE12 homologue of the homothallic ascomycete Sordaria macrospora interacts with the MADS box protein MCM1 and is required for ascosporogenesis. Mol Microbiol 62:853-868

  • Mayrhofer S, Weber JM, Pöggeler S (2006) Pheromones and pheromone receptors are required for proper sexual development in the homothallic ascomycete Sordaria macrospora. Genetics 172:1521-1533