PhD in Anaerobic Hydrocarbon-Oxidizing Microbes – Biology, Aarhus University Aarhus University in Denmark

Aarhus University is offering a PhD fellowship in the Graduate School of Natural Sciences (Biology programme), focusing on the discovery of new anaerobic hydrocarbon-oxidizing microbes. The project is hosted by the Research Group Archaea in the Department of Biology – Microbiology, which investigates the ecophysiology and metabolism of deep-sea Archaea and Sulfate-Reducing Bacteria (SRB) involved in the anaerobic oxidation of hydrocarbons such as ethane, propane, and butane. These hydrocarbons are significant components of natural gas and play crucial roles in the carbon and energy cycles of marine sediments.

The PhD candidate will work to identify and characterize novel clades of hydrocarbon-oxidizing Archaea, SRB, or Archaea-SRB consortia from diverse environments. Research activities include initiating enrichment cultures using single or mixed hydrocarbons as substrates, with sediments sourced from deep sea sites, intertidal zones, hydrocarbon seeps, and mud volcanoes. The project involves advanced microbial community analysis using community sequencing, metagenomics, fluorescence in situ hybridization (FISH), fluorescence microscopy, confocal laser scanning microscopy, and nanoSIMS-based chemical imaging. The candidate will also conduct culture-based experiments and metabolomics to resolve the physiology and metabolic capabilities of these microorganisms.

The overarching goal is to discover novel phylogenetic lineages and functional types of anaerobic hydrocarbon-oxidizing microorganisms, expanding our understanding of the metabolic pathways and interactions that enable alkane oxidation in anoxic environments. The project offers opportunities for participation in sampling campaigns and collaboration within an interdisciplinary team.

Applicants must hold an MSc degree in biology, microbiology, biochemistry, or a related field, with a strong background in microbiology, molecular biology, microbial ecology, or bioinformatics. Excellent English communication skills and a strong interest in interdisciplinary research and high-impact publishing are required. International applicants must demonstrate English proficiency.

The place of employment is Aarhus University, Denmark. The application deadline is 1 February 2026, and the position is available from May 2026 or later. For more information, contact Associate Professors Florin Musat or Niculina Musat at the Department of Biology. Application details and requirements are available on the Aarhus University PhD website.