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  In vivo adhesion force measurements of Chlamydomonas on model substrates

Kreis, C. T., Grangier, A., & Bäumchen, O. (2019). In vivo adhesion force measurements of Chlamydomonas on model substrates. Soft Matter, 15, 3027-3035. doi:10.1039/C8SM02236D.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-20F2-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-4F70-7
Genre: Journal Article

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 Creators:
Kreis, Christian Titus1, Author              
Grangier, Alice1, Author              
Bäumchen, Oliver1, Author              
Affiliations:
1Group Dynamics of fluid and biological interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063300              

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 Abstract: The initial stages of biofilm formation at a surface are triggered by the surface association of individual microorganisms. The biological mechanisms and interfacial interactions underlying microbial adhesion to surfaces have been widely studied for bacteria, while microalgae remained rather unconsidered despite their technological relevance, e.g., in photo-bioreactors. We performed in vivo micropipette force measurements with the model organism Chlamydomonas reinhardtii, a unicellular eukaryotic microalga that dwells in liquid-infused soils and on moist rocks. We characterize the adhesion forces and dissect the influence of intermolecular interactions by probing the adhesion forces of single cells on different model substrates with tailored properties. Our experiments show that the flagella-mediated adhesion of Chlamydomonas to surfaces is largely substrate independent, enabling the cell to adhere to any type of surface. This universal adhesion mechanism allows the microalga to effectively colonize abiotic surfaces in their heterogeneous natural habitats. Our results reveal a dominant contribution of electrostatic interactions governing microalgal adhesion and suggest that flagella membrane processes may cause significant variations of the adhesive properties of the flagella.

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Language(s): eng - English
 Dates: 2019-03-062019
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/C8SM02236D
 Degree: -

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Title: Soft Matter
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 15 Sequence Number: - Start / End Page: 3027 - 3035 Identifier: ISSN: 1744-683X
CoNE: https://pure.mpg.de/cone/journals/resource/1744-683X