Related Experiment Video
Updated: May 6, 2026

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function
Published on: July 31, 2019
Chemical diversity as a function of temperature in six northern diatom species
Siv Huseby1, Maria Degerlund, Gunilla K Eriksen
1MabCent-SFI, University of Tromsø, N-9037 Tromsø, Norway. espen.hansen@uit.no.
Abstract:
In this study, we investigate how metabolic fingerprints are related to temperature. Six common northern temperate diatoms (Attheya longicornis, Chaetoceros socialis, Chaetoceros furcellatus, Porosira glacialis, Skeletonema marinoi, and Thalassiosira gravida) were cultivated at two different temperatures, 0.5 and 8.5 °C. To exclude metabolic variations due to differences in growth rates, the growth rates were kept similar by performing the experiments under light limited conditions but in exponential growth phase. Growth rates and maximum quantum yield of photosynthesis were measured and interpreted as physiological variables, and metabolic fingerprints were acquired by high-resolution mass spectrometry. The chemical diversity varied substantially between the two temperatures for the tested species, ranging from 31% similarity for C. furcellatus and P. glacialis to 81% similarity for A. longicornis. The chemical diversity was generally highest at the lowest temperature.
Related Concept Videos
Diversity of Archaea IV
Diversity of Archaea I
Factors Influencing Microbial Growth: Temperature
Diversity of Archaea III
Diversity of Protists I
Diversity of Archaea II

