Resistance to bacteriocins produced by Gram-positive bacteria
نویسندگان
چکیده
منابع مشابه
Bacteriocins of gram-positive bacteria.
In recent years, a group of antibacterial proteins produced by gram-positive bacteria have attracted great interest in their potential use as food preservatives and as antibacterial agents to combat certain infections due to gram-positive pathogenic bacteria. They are ribosomally synthesized peptides of 30 to less than 60 amino acids, with a narrow to wide antibacterial spectrum against gram-po...
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This study presents the characterization of eight bacteriocins produced by lactic acid bacteria (LAB) previously isolated from a traditional cheese, Pico cheese. All isolates were active against Listeria monocytogenes and only three against Clostridium perfringens. Bioactivity was studied after treatment with different enzymes, organic solvents, surfactants, temperature, pH and NaCl. The antimi...
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Despite similar clinical relevance of Gram-positive and Gram-negative infections, immune activation by Gram-positive bacteria is by far less well understood than immune activation by Gram-negative bacteria. Our group has made available highly purified lipoteichoic acids (LTA) as a key Gram-positive immunostimulatory component. We have characterized the reasons for lower potency of LTA compared ...
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To understand quinupristin-dalfopristin resistance among clinical isolates of gram-positive bacteria in Taiwan, where this agent is not yet available for clinical use, we evaluated 1,287 nonduplicate isolates recovered from January 1996 to December 1999 for in vitro susceptibility to quinupristin-dalfopristin and other newer antimicrobial agents. All methicillin-susceptible Staphylococcus aureu...
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Antimicrobial peptides, or AMPs, play a significant role in many environments as a tool to remove competing organisms. In response, many bacteria have evolved mechanisms to resist these peptides and prevent AMP-mediated killing. The development of AMP resistance mechanisms is driven by direct competition between bacterial species, as well as host and pathogen interactions. Akin to the number of...
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ژورنال
عنوان ژورنال: Microbiology
سال: 2015
ISSN: 1350-0872,1465-2080
DOI: 10.1099/mic.0.082289-0