PMID: 2501837Jan 1, 1989Paper

Bactericidal and bacteriolytic action of peptide antibiotic AS-48 against gram-positive and gram-negative bacteria and other organisms

Research in Microbiology
A GálvezEva Valdivia

Abstract

A purified peptide antibiotic AS-48 from Streptococcus faecalis spp liquiefaciens S-48 exerted a bactericidal mode of action against most Gram-positive and many Gram-negative bacteria tested. In many Gram-positive bacteria and the two Myxococcus species assayed, a bacteriolytic effect, as a consequence of primary lesions, was also observed. In general, the Gram-negative bacteria were more resistant to AS-48. Escherichia coli protoplasts showed increased sensitivity and those of a resistant yeast. Saccharomyces cerevisiae 3.2, became sensitive. These data suggest that resistance is related to the cell wall structure. AS-48 adsorbed rapidly to cell walls and cytoplasmic membranes of sensitive and resistant cells. Adsorption to cytoplasmic membranes involved complete neutralization of AS-48.

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Citations

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An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.