International Leibniz Research School for Microbial and Biomolecular Interactions - ILRS Jena

International Leibniz Research School

for Microbial and Biomolecular Interactions ILRS Jena

upcoming events
Alonso, Pol
Amin, Shayista
Braga de Lima, Daniel
Brandes, Susanne
Buhlmann, Denise
Chen, Qian
Dunker, Christine
Fischer, Juliane
Funk, Alexander
Gerwien, Franziska
Graupner, Katharina
Gusewski, Sandra
Höfs, Sarah
Kroll, Kristin
Lembke, Christine
Li, Wei
Linden, Justus
Luu, Van Thi
Manchanda, Himanshu
MacNelly, Anita
Mauß, Michaela
Mingo, Felix
Mohan, Karthik Mohan
Mohebbi, Sara
Murry, Reyna
Pan, Xinli
Pilz, Christiane (geb.Müller)
Ramachandra, Shruthi
Schwenk, Daniel
Seddigh, Pegah
Senftleben, Dominik
Shekhova, Elena
Skrahina, Volha
Sundaram, Srividhya
Weinhold, Arne
Wolf, Thomas
Zhao, Fei

Arne Weinhold

Personal Data:
Country of Origin: Germany
Start of PhD: February 2009
Institution: MPI CE

PhD Project:
Microbial Interactions relevant for the fitness of Nicotiana attenuata in the native environment

Supervisor(s): I.T. Baldwin (MPI CE), E. Kothe (FSU)

Microorganisms play an important role in most ecosystems. They are responsible for many diseases, but can also be beneficial or even essential for the fitness of many organisms. Rhizobacteria are abundant symbiotic partners of plants. They are known for their importance during the growth of plants and many so called plant-growth-promoting-bacteria (PGPB) have been identified. The wild tobacco Nicotiana attenuata inhabits the southwestern deserts of the United States and growths in hot and dry post-fire environments. The plant has to balance quick growth and strong defense utilizing the limited resources. Many ecological interactions have been studied for years, but yet the microbial influence on the plant has not been adequate analyzed.
Therefore plant-strain have been constructed overexpressing anti-microbial-proteins (AMP). These plants should have a greater resistance against pathogenic bacteria , but will also interfere with beneficial rhizosphere inhabiting bacteria. In this plant the balance between repelling pathogens and harming symbionts will be corrupted and the effect on the growth and the total fitness will be studied. Goal of this work is to characterize the microbial community and study its total fitness influence for Nicotiana attenuata in the wild.


  • Gase K, Weinhold A, Bozorov T, Schuck S, Baldwin IT (2011) Efficient screening of transgenic plant lines for ecological research. Mol Ecol Resour 11(5):890-902.



     § Imprint