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WP1 - Learning from nature & enabling technologies

Understanding how the individual strains in a consortium behave and deciphering the complicated interactions among strains is the key to overcoming the bottlenecks of microbial consortium-based technologies. Therefore, PROMICON developed comprehensive tools and a platform for understanding microbial consortia.

1.1 Development of an online microbial analysis platform

A defined online quantification and identification method for cell concentrations and heterogeneous cell states and types was developed using automated flow cytometry. To achieve this, a combination of OC-300 automation system coupled with DAPI staining and analysis process were designed. Besides, a developed hyperspectral monitoring system was achieved that enables the quantification of biomass, pigment, and PHB. This system was applied to monitor biomass and PHB production in real samples from partners.

1.2 Development of a microbial “omics analysis platform”

By combining proteomics, metabolomics, and stable isotope labelling techniques, a comprehensive omics analysis platform was developed aiming to understand individuals within complex microbial consortia. This platform was successfully applied for analysis of pure culture of engineered strains, coculture of phototrophs, and natural consortia. The results provided a deep insight into microbial interactions and, thus, could help to improve efficiency towards final products.

1.3 Environmental microbiome database mining and contextualisation of selected microbiomes

A computational workflow was established to identify and measure the abundance of taxonomies within target microbiomes. Real environmental samples were collected and examined using the workflow to understand microbial composition.

1.4 Hybrid modelling platform

A hybrid modelling platform based on Physics-informed neural networks for dynamic modelling and control of natural microbiomes was established. This modelling platform used the deep learning method of adaptive moment estimation and was applied further for automatic control of a bioreactor.

References

  • Pinto, J., Costa, R. S., Alexandre, L., Ramos, J., & Oliveira, R. (2023). SBML2HYB: a Python interface for SBML compatible hybrid modeling. Bioinformatics, 39(1), btad044. https://doi.org/10.1093/bioinformatics/btad044
  • San León, D., & Nogales, J. (2022). Toward merging bottom–up and top–down model-based designing of synthetic microbial communities. Current Opinion in Microbiology, 69, 102169. https://doi.org/10.1016/j.mib.2022.102169
  • Rodríguez Lorenzo, F., Placer Lorenzo, M., Herrero Castilla, L., Álvarez Rodríguez, J. A., Iglesias, S., Gómez, S., ... & Gonzalez-Flo, E. (2022). Monitoring PHB production in Synechocystis sp. with hyperspectral images. Water Science and Technology, 86(1), 211-226. https://doi.org/10.2166/wst.2022.194
  • Li, S. & Mueller, S. (2023). Ecological forces dictate microbial community assembly processes in bioreactor systems. Current Opinion in Biotechnology, 81, 102917. https://doi.org/10.1016/j.copbio.2023.102917
  • Pan, M., Wang, Y., Krömer, J. O., Zhu, X., Lin, M. K. T. H. & Angelidaki, I. (2023). A Coculture of Photoautotrophs and Hydrolytic Heterotrophs Enables Efficient Upcycling of Starch from Wastewater toward Biomass-Derived Products: Synergistic Interactions Impacting Metabolism of the Consortium. Environmental Science & Technology. 54(41). https://doi.org/10.1021/acs.est.3c05321
  • López-Gálvez, J., Schiessl, K., Besmer, M. D., Bruckmann, C., Harms, H. & Müller, S. (2023). Development of an Automated Online Flow Cytometry Method to Quantify Cell Density and Fingerprint Bacterial Communities. Cells. 12(12):1559. https://doi.org/10.3390/cells12121559
  • Pan, M., Colpo, R. A., Roussou, S., Ding, C., Lindblad, P. & Krömer, J. O. (2025). Engineering a photoautotrophic microbial coculture toward enhanced biohydrogen production. Environmental Science & Technology. 59(1). https://doi.org/10.1021/acs.est.4c08629
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This project receives funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 101000733. Views and opinions expressed are those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Executive Agency (REA). Neither the EU nor REA can be held responsible for them.
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