The Department of Biochemistry investigates the chemical defenses that plants deploy against their herbivorous enemies. The research goal is to determine which chemical compounds actually protect plants, how they act against herbivores, how the production of defenses in plants is regulated, and why plants seem to have evolved such a large diversity of defensive compounds. Current projects focus especially on the defenses of trees and other woody plants against aphids and beetles. The defensive metabolites under study include a variety of terpenoids, phenolics, alkaloids and glucosinolates. The latest methods of biochemistry as well as analytical chemistry, molecular biology and field ecology are applied.
Director: Prof. Dr. Jonathan Gershenzon


The overall goal of the Department is to study evolutionary adaptations in insects which are mediated by chemical signals. The concept of co-evolution forms the theoretical framework, in which insect-plant, insect-microbe, and insect-insect interactions are examined. Since all evolutionary change has a genetic basis, the knowledge of how genes control phenotypes is fundamental to an understanding of the mechanism of co-evolution. Research in the department focuses also on detoxification enzymes in insects (CYP450), resistances against Bt toxins, and digestive enzymes in insects guts.
Director: Prof. Dr. David G. Heckel

Evolutionary Neuroethology

The Department of Evolutionary Neuroethology studies odor-directed behavior and the underlying neurobiological substrate in insects from a functional and evolutionary perspective. Studies are performed in two main systems: drosophilid flies and sphingid moths. The main objective is to understand the evolution of olfactory functions. By studying related insects and other animals (e.g. crabs) living under different ecological conditions it is possible to understand how habitat and food-choice affect the sense of smell. The department has a variety of technical facilities (wind tunnels, flywalk system) for the quantification of behavioral patterns.
 Prof. Dr. Bill S. Hansson

Insect Symbiosis

The Department of Insect Symbiosis investigates how insects adapt to challenging environments or food sources, with a particular focus on ecological traits conferred by microbial symbionts. The main goal is to understand the evolutionary origins, ecological implications, and the chemical and molecular basis of insect interactions with mutualistic microbes, as well as with antagonists and the insects’ food plants. In order to derive general principles governing these interspecific interactions, we study a broad spectrum of insect taxa including diverse species of beetles, bugs, wasps, and flies.
Director: Prof. Dr. Martin Kaltenpoth

Molecular Ecology

The overarching objective of the research in the Department of Molecular Ecology is to manipulate ecological interactions in nature to identify traits that are demonstrably important for an organism's Darwinian fitness in the complexity of interactions that occur in nature. The scientists focus on plant-mediated interactions and have developed an ecological expression system with a native plant that has a rich suite of ecological interactions: the wild tobacco species Nicotiana attenuata. The department is well equipped with modern genetic and molecular methods and is running a field station in Utah (USA).
Director: Prof. Dr. Ian T. Baldwin

Natural Product Biosynthesis

The Department of Natural Product Biosynthesis studies specialized plant metabolites with evolutionary and pharmaceutical importance. Researchers in the department develop approaches to understand and engineer the chemistry and biology of plant metabolism. Monoterpene indole alkaloids and iridoids are a particular focus.
Director: Dr. Sarah E. O'Connor