Mike Jetten

Why did you choose Lund University? 

I chose Lund University because of its unique convergence of excellent colleagues and world-class research facilities. I see immense potential in collaborating with the distinguished research groups in biogeochemistry and paleoceanography, especially within the context of the newly forming Earth and Environmental Sciences department. The opportunity to work in such a dynamic, interdisciplinary environment—coupled with access to cutting-edge infrastructure like the MAX IV Laboratory—was a decisive factor. It provides the ideal setting to build bridges between microbiology and geology to tackle fundamental environmental challenges.

Can you briefly describe your current research? 

My current research is dedicated to ecological microbiology, with a specific focus on discovering and characterizing what I often refer to as 'impossible microbes.' We investigate anaerobic microorganisms—bacteria that thrive without oxygen—and their critical role in the global cycles of nitrogen and methane. By understanding these processes at a genetic and molecular level, we gain vital insights into how nature regulates greenhouse gases and removes pollutants from aquatic ecosystems.

What will be your main research focus during your time at Lund University? 

During my visiting professorship, my primary focus will be on the 'microbial engine' in low-oxygen environments, such as the Baltic Sea. The goal is to synergize my expertise in anaerobic metabolism with Lund’s renowned capabilities in geology and paleoceanography. We aim to mechanistically link microbial activity to the geochemical signals (proxies) preserved in fossilized shells, like foraminifera. By utilizing advanced analytics at MAX IV, we hope to bridge the gap between genes and the geological record, unlocking new predictive tools for understanding both past and future ocean conditions.