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Death and transfiguration in static Staphylococcus epidermidis cultures
Journal article   Open access

Death and transfiguration in static Staphylococcus epidermidis cultures

Christoph Schaudinn, Paul Stoodley, Luanne Hall-Stoodley, Amita Gorur, Jonathan Remis, Siva Wu, Manfred Auer, Stefan Hertwig, Debbie Guerrero-Given, Fen Ze Hu, …
PloS one, v 9(6), pp e100002-e100002
2014
PMID: 24964210
url
https://doi.org/10.1371/journal.pone.0100002View
Published, Version of Record (VoR) Open

Abstract

Bacterial Adhesion Staphylococcus epidermidis - cytology Staphylococcus epidermidis - physiology Culture Techniques Biofilms - growth & development
The overwhelming majority of bacteria live in slime embedded microbial communities termed biofilms, which are typically adherent to a surface. However, when several Staphylococcus epidermidis strains were cultivated in static liquid cultures, macroscopic aggregates were seen floating within the broth and also sedimented at the test tube bottom. Light- and electron microscopy revealed that early-stage aggregates consisted of bacteria and extracellular matrix, organized in sheet-like structures. Perpendicular under the sheets hung a network of periodically arranged, bacteria-associated strands. During the extended cultivation, the strands of a subpopulation of aggregates developed into cross-connected wall-like structures, in which aligned bacteria formed the walls. The resulting architecture had a compartmentalized appearance. In late-stage cultures, the wall-associated bacteria disintegrated so that, henceforth, the walls were made of the coalescing remnants of lysed bacteria, while the compartment-like organization remained intact. At the same time, the majority of strand-containing aggregates with associated culturable bacteria continued to exist. These observations indicate that some strains of Staphylococcus epidermidis are able to build highly sophisticated structures, in which a subpopulation undergoes cell lysis, presumably to provide continued access to nutrients in a nutrient-limited environment, whilst maintaining structural integrity.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Microbiology
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