Section for Microbiology

The Section for Microbiology studies microbial physiology, evolution, ecology, and biogeochemistry. The development and integration of microbiological, molecular biological and biogeochemical methods, micro sensor technology, and physical-chemical analyses has contributed to the strong research profile of the Section in microbiology and microbial ecology. This spectrum of methods ensures research at all biological levels, from single cells to microbial communities, ecosystems, and the role of microorganisms in the global element cycles.

Our research has a main focus on aquatic environments with microbial ecology, biogeochemistry, and bioelectricity of marine sediments as target areas for the Center for Geomicrobiology, which also includes two ERC Advanced Grants. Further research fields are microorganisms in extreme environments, microbial symbiosis, bacterial biofilms, and the application and control of microorganisms in sewage treatment systems, biogas reactors, and industrial plants.

The Section for Microbiology offers a teaching curriculum, which provides students with skills that constitute a versatile professional foundation for a modern microbiologist. The course content includes both theory and practice and focuses on the section's core research areas.


tor 26 okt
15:00-16:00 | Institut for Bioscience, Ny Munkegade 114-116, bygning 1540-116
Volker Brüchert: Methane in the Laptev and Eastern Siberian shelf sea and sediment – biogeochemical cycling, acoustic, and video observations
Seminar: Microbiology & Geomicrobiology Seminar Series
fre 27 okt
13:00-14:00 | 1531-113 (Auditorium D1)
Cryptic methane turnover in marine surface sediment
PhD defense Ke-Qing Xiao
man 30 okt
13:00-14:00 | Department of Bioscience, Ny Munkegade 114-116, building 1540-116
Brent C. Christner: Distribution and interactions of microbial aeroplankton in the Earth-atmosphere system
Seminar: Microbiology
fre 08 dec
15:00-18:00 | 1540-229
Christmas Tree Party
Christmas Tree Party with Santa, Rudolph the Reindeer & the "Nisseorkester".


15.05.2017 | Mikrobiologi

Poster Award

Congratulations to Søren Dollerup Nielsen

25.04.2017 | Mikrobiologi

How do bacteria act with built-in electrical wires?

Six years after the sensational discovery of cable bacteria, the Danish National Research Foundation is now awarding a grant of up to DKK 56 million to the Centre for Electromicrobiology at Aarhus University.

20.03.2017 | Mikrobiologi

Microorganisms in the subsurface seabed on evolutionary standby

Researchers have sequenced the genomes of several microorganisms inhabiting the subsurface seabed. The results reveal the extreme evolutionary regime controlling microbial life in the deep biosphere

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Aquatic Microbial Ecology

The microbiology section has been heavily involved in study of biogeochemical transformations of carbon, oxygen, nitrogen, sulfur and hydrogen in a wide range of aquatic environments. We are continuously developing new techniques for the study of microbial processes using micro sensors and stable isotopes, in combination with state-of-the-art molecular ecology techniques. (more...)



 Astrobiology searches for life in the Universe and studies the preconditions for life to originate and develop on Earth and in Space. Our research is linked to the Stellar Astrophysics Center and addresses the search for biological fingerprints in the atmosphere of exoplanets as well as the persistence of organics and of microorganisms on Mars. (more...)

Bacterial Biofilms

Bacteria colonize any moist surface, often forming dense, slimy biofilms. These can be troublesome (e.g. on teeth, in food production, or causing corrosion of pipes) or useful (e.g. in biofilters for wastewater or waste air clean-up). Our research combines microbiology and nanotechnology in pursuit of understanding how biofilms establish, and how they can be controlled.(more...)


We study microbial physiology and ecology to exploit microorganisms in biotechnology and bioremediation. Focus is on physiology and enzymology of extremophilic microorganism, the microbial degradation of toxic compounds, and microbial hydrolysis and fermentation of plant polysaccharides, e.g. to increase the production of biogas from common waste material like rice straw. (more...)



The discovery of filamentous “cable bacteria” that conduct electrons over centimetre distances in marine and freshwater sediments has radically changed our view on sediment biogeochemistry and microbial physiology. In a multidisciplinary team, we study the geochemical impact, ecology, structure, metabolism, behaviour and evolution of these novel multicellular bacteria. (more...)





Under the research area Geomicrobiology, we study the life of microorganisms in the seabed and how they interact with processes in the geosphere. Our studies range from the highly active surface sediments to the deep sub-seafloor biosphere, where microbial life proceeds in slow motion. (more..)

Microbial Symbiosis

All plants and animals live in association with microorganisms, which often have major impacts on their hosts’ function, health, and evolution. We study simple invertebrate – bacteria symbiosis in earthworms and ascidiens to understand the fundamental principles of host – microbe interactions and their evolutionary consequences. (more...)

Section Head

Kai Finster

Professor MSO
H bygn. 1540, 129
P +4587156537
P +4551240515