microbiology

Marine Microbiome

Complex systems theory of dissolved organic matter

Movement Ecology

Linking magnetic and other orientation cues to global migration patterns

New Publication: Shape matters: cell geometry determines phytoplankton diversity

Exploring the shape-diversity relationship in phytoplankton

Amino Acid and Sugar Catabolism in the Marine Bacterium Phaeobacter inhibens DSM 17395 from an Energetic Viewpoint

Growth energetics and metabolic efficiency contribute to the lifestyle and habitat imprint of microorganisms. Roseobacters constitute one of the most abundant and successful marine bacterioplankton groups. Here, we reflect on the energetics and …

The marine bacterium Phaeobacter inhibens secures external ammonium by rapid buildup of intracellular nitrogen stocks

Reduced nitrogen species are key nutrients for biological productivity in the oceans. Ammonium is often present in low and growth-limiting concentrations, albeit peaks occur during collapse of algal blooms or via input from deep sea upwelling and …

Complementary metaproteomic approaches to assess the bacterioplankton response toward a phytoplankton spring bloom in the Southern North Sea

Annually recurring phytoplankton spring blooms are characteristic of temperate coastal shelf seas. During these blooms, environmental conditions, including nutrient availability, differ considerably from non-bloom conditions, affecting the entire …

Influence of nanoLC column and gradient length as well as MS/MS frequency and sample complexity on shotgun protein identification of marine bacteria

Protein identification by shotgun proteomics, i.e., nano-liquid chromatography (nanoLC) peptide separation online coupled to electrospray ionization (ESI) mass spectrometry (MS)/MS, is the most widely used gel-free approach in proteome research. …

Non-Redfield, nutrient synergy and flexible internal elemental stoichiometry in a marine bacterium

The stoichiometric constraints of algal growth are well understood, whereas there is less knowledge for heterotrophic bacterioplankton. Growth of the marine bacterium Phaeobacter inhibens DSM 17395, belonging to the globally distributed Roseobacter …

Functional molecular diversity of marine dissolved organic matter is reduced during degradation

Dissolved organic matter (DOM) is a highly diverse mixture of compounds, accounting for one of the world's largest active carbon pools. The surprising recalcitrance of some DOM compounds to bacterial degradation has recently been associated with its …

High performance CCD camera system for digitalisation of 2D DIGE gels

An essential step in 2D DIGE-based analysis of differential proteome profiles is the accurate and sensitive digitalisation of 2D DIGE gels. The performance progress of commercially available charge-coupled device (CCD) camera-based systems combined …