Reference : Controlled motility in the cyanobacterium Trichodesmium regulates aggregate architecture

	Document type :	Scientific journals : Article
	Discipline(s) :	Life sciences : Environmental sciences & ecology Physical, chemical, mathematical & earth Sciences : Multidisciplinary, general & others
	Focus Areas :	Physics and Materials Science
	To cite this reference:	http://hdl.handle.net/10993/55285

Title :	Controlled motility in the cyanobacterium Trichodesmium regulates aggregate architecture
Language :	English
Author, co-author :	Pfreundt, Ulrike []
	Słomka, Jonasz []
	Schneider, Giulia []
	Sengupta, Anupam [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) >]
	Carrara, Francesco []
	Fernandez, Vicente []
	Ackermann, Martin []
	Stocker, Roman []
Publication date :	26-May-2023
Journal title :	Science
Publisher :	American Association for the Advancement of Science
Volume :	380
Issue/season :	6647
Pages :	830-835
Peer reviewed :	Yes
Audience :	International
ISSN :	0036-8075
e-ISSN :	1095-9203
City :	Washington
Country :	United States - District of Columbia
Keywords :	[en] motility ; aggregation ; cyanobacteria ; filamentous ; Trichodesmium
Abstract :	[en] The ocean’s nitrogen is largely fixed by cyanobacteria, including Trichodesmium, which forms aggregates comprising hundreds of filaments arranged in organized architectures. Aggregates often form upon exposure to stress and have ecological and biophysical characteristics that differ from those of single filaments. Here, we report that Trichodesmium aggregates can rapidly modulate their shape, responding within minutes to changes in environmental conditions. Combining video microscopy and mathematical modeling, we discovered that this reorganization is mediated by “smart reversals” wherein gliding filaments reverse when their overlap with other filaments diminishes. By regulating smart reversals, filaments control aggregate architecture without central coordination. We propose that the modulation of gliding motility at the single-filament level is a determinant of Trichodesmium’s aggregation behavior and ultimately of its biogeochemical role in the ocean.
Funders :	Fonds National de la Recherche - FnR ; Swiss National Science Foundation ; Gordon and Betty Moore Foundation ; Simons Foundation ; National Centre of Competence in Research (NCCR) Microbiomes, Switzerland
Target :	Researchers ; Professionals ; Students ; General public ; Others
Permalink :	http://hdl.handle.net/10993/55285
DOI :	10.1126/science.adf2753
Other URL :	https://www.science.org/doi/abs/10.1126/science.adf2753
Mentions required by the publisher for OA :	Copyright © 2023 the authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original US government works. https://www.sciencemag.org/about/science-licenses-journal-article-reuse
FnR project :	FnR ; FNR11572821 > Anupam Sengupta > MBRACE > Biophysics Of Microbial Adaptation To Fluctuations In The Environment > 15/05/2018 > 14/05/2023 > 2017

	File(s) associated to this reference
	Fulltext file(s): File Commentary Version Size Access Open access adf2753_CombinedPDF_Accepted.pdf DOI: 10.1126/science.adf2753 Author postprint 23.45 MB View/Open Additional material(s): File Commentary Size Access Open access science.adf2753_sm.pdf Supplementary Materials 19.67 MB View/Open

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