Bacterial Cell Wall

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Molecular Microbiology and Immunology".

Deadline for manuscript submissions: closed (15 July 2023) | Viewed by 2621

Special Issue Editor


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Guest Editor
State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China
Interests: bacterial cell wall; peptidoglycan; lipoprotein; atomic force microscopy; antimicrobial resistance; microbial physiology

Special Issue Information

Dear Colleagues,

The bacterial cell wall is a complex structure that is essential for bacteria as a protective barrier. In gram-positive bacteria, the main component of cell wall is a relative thick peptidoglycan layer, where other wall polymers are attached. In contrast, the peptidoglycan layer of gram-negative bacteria is relative thin. An outer membrane is located outside of peptidoglycan layer of gram-negative bacteria. The peptidoglycan layer is linked to the outer membrane by peptidoglycan-associated outer membrane proteins. The bacterial cell wall is responsible for maintenance of cell shape and structural integrity, which is critical for cell growth and division. Moreover, formation of peptidoglycan, the main component of bacterial cell wall, is usually the target of antibiotics.

In this Special Issue of Microorganisms, we would like to invite the submission of papers, in the form of original research papers or reviews, that are related with study concerning any aspects of the bacterial cell wall.

Prof. Dr. Hainan Su
Guest Editor

Manuscript Submission Information

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Published Papers (1 paper)

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Research

16 pages, 2142 KiB  
Article
O-Polysaccharides of LPS Modulate E. coli Uptake by Acanthamoeba castellanii
by Ying Liu and Gerald Koudelka
Microorganisms 2023, 11(6), 1377; https://doi.org/10.3390/microorganisms11061377 - 24 May 2023
Cited by 1 | Viewed by 1355
Abstract
Protozoan grazing is a major cause of bacterial mortality and controls bacterial population size and composition in the natural environment. To enhance their survival, bacteria evolved many defense strategies to avoid grazing by protists. Cell wall modification is one of the defense strategies [...] Read more.
Protozoan grazing is a major cause of bacterial mortality and controls bacterial population size and composition in the natural environment. To enhance their survival, bacteria evolved many defense strategies to avoid grazing by protists. Cell wall modification is one of the defense strategies that helps bacteria escape from recognition and/or internalization by its predators. Lipopolysaccharide (LPS) is the major component of Gram-negative bacterial cell wall. LPS is divided into three regions: lipid A, oligosaccharide core and O-specific polysaccharide. O-polysaccharide as the outermost region of E. coli LPS provides protection against predation by Acanthamoeba castellanii; however, the characteristics of O-polysaccharide contribute to this protection remain unknown. Here, we investigate how length, structure and composition of LPS affect E. coli recognition and internalization by A. castellanii. We found that length of O-antigen does not play a significant role in regulating bacterial recognition by A. castellanii. However, the composition and structure of O-polysaccharide play important roles in providing resistance to A. castellanii predation. Full article
(This article belongs to the Special Issue Bacterial Cell Wall)
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