Universität zu Köln

Bremer, Erhard and Kraemer, Reinhard (2019). Responses of Microorganisms to Osmotic Stress. In: Annual Review of Microbiology, S. 313 - 322. PALO ALTO: ANNUAL REVIEWS. ISBN 978-0-8243-1173-5

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Abstract

The cytoplasm of bacterial cells is a highly crowded cellular compartment that possesses considerable osmotic potential. As a result, and owing to the semipermeable nature of the cytoplasmic membrane and the semielastic properties of the cell wall, osmotically driven water influx will generate turgor, a hydrostatic pressure considered critical for growth and viability. Both increases and decreases in the external osmolarity inevitably trigger water fluxes across the cytoplasmic membrane, thus impinging on the degree of cellular hydration, molecular crowding, magnitude of turgor, and cellular integrity. Here, we assess mechanisms that permit the perception of osmotic stress by bacterial cells and provide an overview of the systems that allow them to genetically and physiologically cope with this ubiquitous environmental cue. We highlight recent developments implicating the secondary messenger c-di-AMP in cellular adjustment to osmotic stress and the role of osmotic forces in the life of bacteria-assembled in biofilms.

Item Type:	Book Section, Proceedings Item or annotation in a legal commentary
Creators:	Creators Email ORCID ORCID Put Code Bremer, Erhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Kraemer, Reinhard UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-160567
DOI:	10.1146/annurev-micro-020518-115504
Title of Book:	Annual Review of Microbiology
Series Name:	Annu. Rev. Microbiol.
Volume:	73
Page Range:	S. 313 - 322
Date:	2019
Publisher:	ANNUAL REVIEWS
Place of Publication:	PALO ALTO
ISSN:	1545-3251
ISBN:	978-0-8243-1173-5
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language C-DI-AMP; SOLUTES GLYCINE BETAINE; MATRIX GENE-EXPRESSION; ESCHERICHIA-COLI; BACILLUS-SUBTILIS; BINDING-PROTEIN; CORYNEBACTERIUM-GLUTAMICUM; MECHANOSENSITIVE CHANNEL; COMPATIBLE SOLUTES; ABC TRANSPORTER Multiple languages Microbiology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16056