English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Light controls motility and phase separation of photosynthetic microbes

Fragkopoulos, A. A., Vachier, J., Frey, J., le Menn, F.-M., Wilczek, M., Mazza, M., et al. (2022). Light controls motility and phase separation of photosynthetic microbes. arXiv, (submitted). Retrieved from http://arxiv.org/abs/2006.01675.

Item is

Files

show Files
hide Files
:
2006.01675.pdf (Preprint), 6MB
Name:
2006.01675.pdf
Description:
File downloaded from arXiv at 2020-09-16 08:54
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-

Locators

show

Creators

show
hide
 Creators:
Fragkopoulos, Alexandros A.1, Author           
Vachier, Jérémy2, Author           
Frey, Johannes1, Author           
le Menn, Flora-Maud1, Author           
Wilczek, Michael3, Author           
Mazza, Marco2, 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              
2Group Non-equilibrium soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063308              
3Max Planck Research Group Theory of Turbulent Flows, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2266693              

Content

show
hide
Free keywords: Physics, Biological Physics, physics.bio-ph, Condensed Matter, Soft Condensed Matter, cond-mat.soft, Condensed Matter, Statistical Mechanics, cond-mat.stat-mech
 Abstract: Large ensembles of interacting, out-of-equilibrium agents are a paradigm of
active matter. Their constituents' intrinsic activity may entail the
spontaneous separation into localized phases of high and low densities. Motile
microbes, equipped with ATP-fueled engines, are prime examples of such
phase-separating active matter, which is fundamental in myriad biological
processes. The fact that spontaneous spatial aggregation is not widely
recognized as a general feature of microbial communities challenges the
generalisation of phase separation beyond artificial active systems. Here, we
report on the phase separation of populations of Chlamydomonas reinhardtii that
can be controlled by light in a fully reversible manner. We trace this
phenomenon back to the light- and density-dependent motility, thus bridging the
gap from light perception on the single-cell level to collective spatial
self-organization into regions of high and low density. Its spectral
sensitivity suggests that microbial motility and phase separation are regulated
by the activity of the photosynthetic machinery. Characteristic fingerprints of
the stability and dynamics of this active system paint a picture that cannot be
reconciled with the current physical understanding of phase separation in
artificial active matter, whereby collective behavior can emerge from inherent
motility modulation in response to changing stimuli. Our results therefore
point towards the existence of a broader class of self-organization phenomena
in living systems.

Details

show
hide
Language(s):
 Dates: 2020-06-022020-06-022022-12-24
 Publication Status: Issued
 Pages: 9 pages, 3 figures
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2006.01675
URI: http://arxiv.org/abs/2006.01675
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: arXiv
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: (submitted) Start / End Page: - Identifier: -