Publications by authors named "Georg Petschenka"

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Insect Collections as an Untapped Source of Bioactive Compounds-Fireflies (Coleoptera: Lampyridae) and Cardiotonic Steroids as a Proof of Concept.
Andreas Berger, Georg Petschenka, Thomas Degenkolb, Michael Geisthardt, Andreas Vilcinskas

Insects· July 2021

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Double-Stranded DNA Reduces dsRNA Degradation in the Saliva and Significantly Enhanced RNAi-Mediated Gene Silencing in Halyomorpha halys.
Venkata Partha Sarathi Amineni, Georg Petschenka, Aline Koch

Adv Biol (Weinh)· September 2025

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Regionality and Temporal Dynamics of Sequestration and Relocation of Cardenolides in the Monarch Butterfly, Danaus plexippus.
Anja Betz, Birgit Höglinger, Frank Walker, Georg Petschenka

J Chem Ecol· February 2025

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Convergence and Divergence among Herbivorous Insects Specialized on Toxic Plants: Revealing Syndromes among the Cardenolide Feeders across the Insect Tree of Life.
Anurag A Agrawal, Amy P Hastings, Paul A Lenhart, Michael Blecher, Christophe Duplais, Georg Petschenka

Am Nat· September 2024

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Can a Mixture of Farnesene Isomers Avert the Infestation of Aphids in Sugar Beet Crops?
Denise Kuhn, Nils Nägele, Till Tolasch, Georg Petschenka, Johannes L M Steidle

Insects· September 2024

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Late-instar monarch caterpillars sabotage milkweed to acquire toxins, not to disarm plant defence.
Anja Betz, Robert Bischoff, Georg Petschenka

Proc Biol Sci· February 2024

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Predatory fireflies and their toxic firefly prey have evolved distinct toxin resistance strategies.
Lu Yang, Flora Borne, Anja Betz, Matthew L Aardema, Ying Zhen, Georg Petschenka

Curr Biol· December 2023

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Predatory fireflies and their toxic firefly prey have evolved distinct toxin resistance strategies.
Lu Yang, Flora Borne, Anja Betz, Matthew L Aardema, Ying Zhen, Georg Petschenka

bioRxiv· October 2023

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Spatial metabolomics reveal divergent cardenolide processing in the monarch (Danaus plexippus) and the common crow butterfly (Euploea core).
Domenic Dreisbach, Dhaka R Bhandari, Anja Betz, Linda Tenbusch, Andreas Vilcinskas, Georg Petschenka

Mol Ecol Resour· August 2023

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No physiological costs of dual sequestration of chemically different plant toxins in the milkweed bug Spilostethus saxatilis (Heteroptera: Lygaeidae).
Laura Espinosa Del Alba, Georg Petschenka

J Insect Physiol· June 2023

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Antioxidant availability trades off with warning signals and toxin sequestration in the large milkweed bug ().
H Cecilia Heyworth, Prayan Pokharel, Jonathan D Blount, Christopher Mitchell, Georg Petschenka

Ecol Evol· April 2023

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Quantification of plant cardenolides by HPLC, measurement of Na/K-ATPase inhibition activity, and characterization of target enzymes.
Georg Petschenka, Tobias Züst, Amy P Hastings, Anurag A Agrawal, Georg Jander

Methods Enzymol· January 2023

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Perspectives for integrated insect pest protection in oilseed rape breeding.
Christian Obermeier, Annaliese S Mason, Torsten Meiners, Georg Petschenka, Michael Rostás

Theor Appl Genet· November 2022

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Molecular Networking and On-Tissue Chemical Derivatization for Enhanced Identification and Visualization of Steroid Glycosides by MALDI Mass Spectrometry Imaging.
Domenic Dreisbach, Sven Heiles, Dhaka R Bhandari, Georg Petschenka, Bernhard Spengler

Anal Chem· November 2022

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Metabolization and sequestration of plant specialized metabolites in insect herbivores: Current and emerging approaches.
Adriana Moriguchi Jeckel, Franziska Beran, Tobias Züst, Gordon Younkin, Georg Petschenka

Front Physiol· September 2022

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Sequestration of Defenses against Predators Drives Specialized Host Plant Associations in Preadapted Milkweed Bugs (Heteroptera: Lygaeinae).
Georg Petschenka, Rayko Halitschke, Tobias Züst, Anna Roth, Sabrina Stiehler

Am Nat· June 2022

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Functional evidence supports adaptive plant chemical defense along a geographical cline.
Anurag A Agrawal, Laura Espinosa Del Alba, Xosé López-Goldar, Amy P Hastings, Ronald A White, Georg Petschenka

Proc Natl Acad Sci U S A· June 2022

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Sequestration of Plant Defense Compounds by Insects: From Mechanisms to Insect-Plant Coevolution.
Franziska Beran, Georg Petschenka

Annu Rev Entomol· January 2022

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Dietary cardenolides enhance growth and change the direction of the fecundity-longevity trade-off in milkweed bugs (Heteroptera: Lygaeinae).
Prayan Pokharel, Anke Steppuhn, Georg Petschenka

Ecol Evol· December 2021

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3D-surface MALDI mass spectrometry imaging for visualising plant defensive cardiac glycosides in Asclepias curassavica.
Domenic Dreisbach, Georg Petschenka, Bernhard Spengler, Dhaka R Bhandari

Anal Bioanal Chem· March 2021

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Defense of Milkweed Bugs (Heteroptera: Lygaeinae) against Predatory Lacewing Larvae Depends on Structural Differences of Sequestered Cardenolides.
Prayan Pokharel, Marlon Sippel, Andreas Vilcinskas, Georg Petschenka

Insects· July 2020

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Independent evolution of ancestral and novel defenses in a genus of toxic plants (, Brassicaceae).
Tobias Züst, Susan R Strickler, Adrian F Powell, Makenzie E Mabry, Hong An, Georg Petschenka

Elife· April 2020

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Analysis of defensive secretion of a milkweed bug Lygaeus equestris by 1D GC-MS and GC×GC-MS: sex differences and host-plant effect.
Martina Havlikova, Tereza Bosakova, Georg Petschenka, Radomir Cabala, Alice Exnerova

Sci Rep· February 2020

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Adaptive substitutions underlying cardiac glycoside insensitivity in insects exhibit epistasis in vivo.
Andrew M Taverner, Lu Yang, Zachary J Barile, Becky Lin, Julie Peng, Georg Petschenka

Elife· August 2019

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Cardenolide Intake, Sequestration, and Excretion by the Monarch Butterfly along Gradients of Plant Toxicity and Larval Ontogeny.
Patricia L Jones, Georg Petschenka, Lara Flacht, Anurag A Agrawal

J Chem Ecol· March 2019

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