Marine Molecular Microbiology

The research interests of the group concern marine microbial ecology. We apply molecular and microbiological tools to identify factors that regulate bacterioplankton community composition in the ocean. Recent and ongoing projects are especially related to the ecology of heterotrophic N2-fixing bacterioplankton and bacterial diversity and population dynamics.

In parallel with the microbiology projects, we apply molecular tools in projects adressing aspects of plankton ecology. Current projects concern molecular identification of fish larvae and their prey.

Standard microbiology techniques and bacterial cultivation are combined with state-of-the-art molecular methodology such as: PCR, Real-Time PCR, metagenomics, transcriptomics and amplicon sequencing. Approaches include field work as well as experimental work.






























The Riemann group August 2020. From left: Subhendu Chakraborty, Ellen Salamon, Lasse Riemann, Meriel Bittner, Tobias Launbjerg, Lisa W. von Friesen, and Søren Hallstrøm.


Name Title Phone E-mail
Ellen Rachel Salamon Paid by the hour +45 353-32245 E-mail
Lasse Riemann Professor +45 353-21959 E-mail
Lisa Winberg von Friesen PhD fellow +45 353-32787 E-mail
Meriel Jennifer Bittner PhD fellow +45 353-33744 E-mail
Subhendu Chakraborty Postdoc +45 353-31567 E-mail

Other members

Name Title
Tobias Launbjerg Master student


Professor Lasse Riemann
Head of Marine Biological Section
Professor in Marine molecular microbiology

Marine Biological Section
Strandpromenaden 5
DK-3000 Helsingør, Denmark

Researcher ID
Phone: +45 35 32 19 59


Benavides M, Duhamel S, Van Wambeke F, Shoemaker KM, Moisander PH, Salamon E, Riemann L, Bonnet S. Dissolved organic matter stimulates N2 fixation and nifH gene expression in natural Trichodesmium colonies. 2020. FEMS Microbiol Letters 367, fnaa034