Welcome to Archaea Biology and Ecogenomics

Department of Functional and Evolutionary Ecology

We belong to the Faculty of Life Sciences of the University of Vienna. On 1 January 2022 Archaea Biology, Molecular Systems Biology, Limnology and Bio-Oceanography and Marine Biology merged to the Department of Functional and Evolutionary Ecology.

Archaea arose together with Bacteria as the first organisms on this planet about 3.5 billion years ago. They form a separate domain of life beside bacteria and eukaryotes and inhabit virtually all environments on earth, including the most extreme environments that can sustain life.
Our unit studies the biology of archaea as well as bacterial symbioses with a focus on ecological, physiological and evolutionary aspects to shed light on the diversity and fundamental distinctions between these two prokaryotic groups.

In particular we are interested in:

- the ecological distribution of archaea from terrestrial, aquatic and hot environments

- the phylogeny of archaea

- the metabolism and genomes of ammonia oxidizing thaumarchaeota

- virus-defense (CRISPR-) systems of hyperthermophilic archaea

- archaea Biotechnology

- bacterium-nematode symbioses

We thus attempt to improve the understanding of the role of microorganisms, in particular of archaea, in global biogeochemical cycles and in early evolution.

11.12.2025
 

"Localisation and function of the centromeric protein ParB in Multicellular Longitudinally Dividing Neisseriaceae"

01.12.2025
 

"Investigation of the Host-Associated and Environmental Microbiomes to the Mercury Detoxification Strategies of Two Caiman Species in French Guiana"

19.11.2025
 

"Redefining AOA Ecophysiology: From Biofilm Formation to Oxygen Production"

24.10.2025
 

“Biofilm Formation and Cultivation of Ammonia Oxidizing Archaea”

01.10.2025
 

Climate Change and Climate Crisis: Towards the Eco-Sociological Transformation

18.08.2025
 

"Investigating the Targets of Nitrification Inhibitors (NIs) in Ammonia Oxidizing Archaea and the Role of Hydroxylamine in Nitrification"

Guest Lectures

26.11.2025
 

"Climate Change and Mechanization – Curse or Blessing?"

25.11.2025
 

"Biological rhythms and clocks in the deep sea"

20.11.2025
 

"Does a large niche breadth facilitate microbial adaptation in fluctuating environments?"