Dr. rer. nat.
Phone: +49 641 99-37603
|since 2017||Emmy Noether and LOEWE research group leader|
|since 2015||Postdoc at the Institute for Insect Biotechnology, University of Giessen|
|2012–2015||Postdoc in the Department of Ecology and Evolutionary Biology, Cornell University, USA|
|2010–2012||Postdoc at the University of Hamburg, Molecular Evolutionary Biology Group|
|2006–2010||PhD at the University of Hamburg, Molecular Evolutionary Biology Group|
|2005–2006||Research internship State Museum of Natural History Karlsruhe|
|2002–2005||Diploma in Biology (equivalent to MSc), University of Bayreuth|
|1999–2002||undergraduate studies in biology and intermediate diploma, University of Tübingen|
Awards and Grants
|2016||Emmy Noether-Program German Research Foundation (DFG)|
|2016||International Society of Chemical Ecology Early Career Award|
|2015||Return Grant from the German Research Foundation (DFG)|
|2014||Travel grant from the German Academic Exchange Service (DAAD)|
|2012–2015||Postdoctoral Research Fellowship from the German Research Foundation (DFG)|
|2008||Travel grant from the German National Academic Foundation|
|2006–2009||Ph.D. Scholarship from the German National Academic Foundation|
Evolution and mechanisms of insect resistance to plant toxins. – Link
Petschenka G, Fei CS, Araya JJ, Schröder S, Timmermann BN, Agrawal AA (accepted) Structure-activity relationships for plant cardiac glycosides on insect Na+/K+-ATPases: implications for monarch-milkweed coevolution. Frontiers in Plant Science,
Mohammadi S, Petschenka G, French SS, Mori A, Savitzky AH (2018) Snakes exhibit tissue-specific variation in cardiotonic steroid sensitivity of Na+/K+-ATPase. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 217 , 21-26.
Petschenka G, Wagschal V, von Tschirnhaus M, Donath A, Dobler S (2017) Convergently evolved toxic secondary metabolites in plants drive the parallel molecular evolution of insect resistance. The American Naturalist, 190 (S1) , S29-43.
Petschenka G, Agrawal AA (2016) How herbivores coopt plant defenses: Natural selection, specialization, and sequestration. Current Opinion in Insect Science, 14 , 17–24.
Bramer C, Dobler S, Deckert J, Stemmer M, Petschenka G (2015) Na+/K+-ATPase resistance and cardenolide sequestration: basal adaptations to host plant toxins in the milkweed bugs (Hemiptera: Lygaeidae: Lygaeinae) Proceedings of the Royal Society B, 282 (1805) , 1–9.
Dobler S, Petschenka G, Wagschal V, Flacht L (2015) Convergent adaptive evolution – how insects master the challenge of cardiac glycoside-containing host plants Entomologia Experimentalis et Applicata, 157 (1) , 30–39.
Petschenka G, Agrawal AA (2015) Milkweed butterfly resistance to plant toxins is linked to sequestration, not coping with a toxic diet. Proceedings of the Royal Society B, 282 (1818) , 1–9.
Mebs D, Petschenka G, Pogoda W, Toennes SW, Amendt J, Zajac BK, Dobler S (2014) Amphibian myiasis. Blowfly larvae (Lucilia bufonivora, Diptera: Calliphoridae) coping with the poisonous skin secretion of the common toad (Bufo bufo). Chemoecology, 24 (4) , 159–164.
Petschenka G, Fandrich S, Sander N, Wagschal V, Boppré M, Dobler S (2013) Stepwise evolution of resistance to toxic cardenolides via genetic substitutions in the Na+/K+-ATPase of milkweed butterflies (Lepidoptera: Danaini). Evolution, 67 (9) , 2753–2761.
Petschenka G, Pick C, Wagschal V, Dobler S (2013) Functional evidence for physiological mechanisms to circumvent neurotoxicity of cardenolides in an adapted and a non-adapted hawk-moth species. Proceedings of the Royal Society B, 280 (1759) , 1–9.
Agrawal AA, Petschenka G, Bingham RA, Weber MG, Rasmann S (2012) Toxic cardenolides: chemical ecology and coevolution of specialized plant-herbivore interactions. New Phytologist, 194 (1) , 28–45.
Petschenka G, Offe JK, Dobler S (2012) Physiological screening for target site insensitivity and localization of Na+/K+-ATPase in cardenolide-adapted Lepidoptera. Journal of Insect Physiology, 58 (5) , 607–612.
Dobler S, Petschenka G, Pankoke H (2011) Coping with toxic plant compounds – The insect’s perspective on iridoid glycosides and cardenolides Phytochemistry, 72 (13) , 1593–1604.
Petschenka G, Bramer C, Pankoke H, Dobler S (2011) Evidence for a deterrent effect of cardenolides on Nephila spiders. Basic and Applied Ecology, 12 (3) , 260–267.
Sehlmeyer S, Wang L, Langel D, Heckel DG, Mohagheghi H, Petschenka G, Ober D. (2010) Flavin-dependent monooxygenases as a detoxification mechanism in insects: new insights from the arctiids (lepidoptera). PLoS One, 5 (5) , 1–10.
Petschenka G, Dobler S (2009) Target-site sensitivity in a specialized herbivore towards major toxic compounds of its host plant: the Na+K+-ATPase of the oleander hawk moth (Daphnis nerii) is highly susceptible to cardenolides Chemoecology, 19 (4) , 235–239.
Petschenka G (2006) On the Morphology of Bittacus hageni BRAUER, 1860 and Bittacus italicus (MÜLLER, 1766) (Mecoptera: Bittacidae). Entomologische Zeitschrift, 116 , 124–126.
Petschenka G, Tavakoli M, Trusch R (2006) Description of the unknown female of Agriopis beschkovi Ganev, 1987 (Geometridae: Ennominae), and illustration of the larvae. Nota Lepidopterologica , 29 (1/2) , 27–35.
Petschenka G (2003) Erstfund von Eratophyes amasiella (Herrich-Schäffer, 1855) in Baden Württemberg (Lep., Oecophoridae). Melanargia, 15 , 18!3–18$.