Protocol to assess metabolic activity of Pseudomonas aeruginosa by measuring heat flow using isothermal calorimetry

Katrin Beilharz*, Kasper Nørskov Kragh, Blaine Fritz, Julius B. Kirkegaard, Tim Tolker-Nielsen, Thomas Bjarnsholt, Mads Lichtenberg

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Here, we present a protocol for assessing metabolic activity of bacterial populations by measuring heat flow using isothermal calorimetry. We outline the steps for preparing the different growth models of Pseudomonas aeruginosa and performing continuous metabolic activity measurements in the calScreener. We detail simple principal component analysis to differentiate between metabolic states of different populations and probabilistic logistic classification to assess resemblance to wild-type bacteria. This protocol for fine-scale metabolic measurement can aid in understanding microbial physiology. For complete details on the use and execution of this protocol, please refer to Lichtenberg et al. (2022).1

Original languageEnglish
Article number102269
JournalSTAR Protocols
Volume4
Issue number2
ISSN2666-1667
DOIs
Publication statusPublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors

Keywords

  • Cell-based Assays
  • Metabolism
  • Microbiology

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