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Biofilms: Extracellular Bastions of Bacteria

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ISBN: 9783906980942 9783906980959 Year: Pages: 300 DOI: 10.3390/books978-3-906980-95-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 06:42:46
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Biofilms are attached forms of bacteria and other microorganisms enclosed in a matrix of extracellular polymeric substances (EPS), and comprise a microbial lifestyle that is quite different from that of free-living planktonic cells. The biofilm state is now universally-recognized for its complexity and resiliency to stresses, and importance in natural environments, as well its roles in comensal flora and infection processes. However, the EPS matrix, which occur just ‘outside of cells’, is poorly understood, and has been understated in the literature. Yet this extracellular milieu is crucial to the functioning and resiliency of the biofilm. Recently, exciting new advances have emerged that are helping to understand the EPS matrix, its processes, ultrastructure, and importance to cells in nature and disease.

Microbial Exopolymers: Sources, Chemico-Physiological Properties, and Ecosystem Effects in the Marine Environment

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889456024 Year: Pages: 152 DOI: 10.3389/978-2-88945-602-4 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Oceanography --- Microbiology
Added to DOAB on : 2019-01-23 14:53:43
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Microorganisms (bacteria, archaea, microeukaryotes) in marine environments secrete a diverse array of exopolymeric substances that facilitate attachment to surfaces, the formation of organic colloids and larger aggregations of cells (marine snow), and that can influence many ocean, as well as global, processes. The aim of this Research Topic is to highlight recent advances in the sources, chemistry and function of these microbial-produced macromolecules. We encouraged original research and reviews on exopolymeric substances, from their sources, chemico-physiological properties, functions and ecosystem effects, and including their role in the Gulf of Mexico following the Deepwater Horizon oil spill disaster.

Antimicrobial Resistance in Environmental Waters

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ISBN: 9783038976080 9783038976097 Year: Pages: 188 DOI: 10.3390/books978-3-03897-609-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2019-05-09 17:16:14
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This Special Issue on Antimicrobial Resistance in Environmental Waters features 11 articles on the monitoring and surveillance of antimicrobial resistance (AMR) in natural aquatic systems (i.e., reservoirs, rivers), and effluent discharge from water treatment plants to assess the effectiveness of AMR removal and resulting loads in treated waters. Some of the key elements of AMR studies presented in this Special Issue highlight the underlying drivers of AMR contamination in the environment and the evaluation of the hazard imposed on aquatic organisms in receiving environments through ecological risk assessments. As described in this Issue, screening antimicrobial peptide (AMP) libraries for biofilm disruption and antimicrobial candidates are promising avenues for the development of new treatment options to eradicate resistance.

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