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Fungal toxicity of phosfon D and its reversion by lipids
Antimicrobial Agents and Chemotherapy
|April 1, 1978
Abstract:
The growth retardant Phosfon D inhibits the growth of some yeasts and human pathogenic filamentous fungi. The toxic effects of the compound on the dermatophyte Microsporum cookei were completely reversed by adding ergosterol and oleic acid to the medium. The significance of these findings is discussed.
Insights
Phosfon D, a growth retardant, inhibits fungi and yeasts. Its toxic effects on Microsporum cookei were reversed by ergosterol and oleic acid, suggesting a role for these compounds in fungal cell membranes.
Area of Science:
- Mycology
- Biochemistry
- Antifungal Research
Background:
- Phosfon D is a chemical compound known to inhibit microbial growth.
- Fungal infections pose significant health risks, necessitating research into novel antifungal agents.
- Dermatophytes like Microsporum cookei are a common cause of human fungal infections.
Purpose of the Study:
- To investigate the antifungal activity of Phosfon D against yeasts and filamentous fungi.
- To determine the mechanism of Phosfon D's toxicity on Microsporum cookei.
- To explore potential methods for reversing the toxic effects of Phosfon D.
Main Methods:
- Culturing of various yeasts and filamentous fungi, including Microsporum cookei.
- Treatment of fungal cultures with Phosfon D at varying concentrations.
- Addition of ergosterol and oleic acid to growth media to assess reversal of Phosfon D toxicity.
Main Results:
- Phosfon D demonstrated inhibitory effects on the growth of several yeast and human pathogenic filamentous fungi.
- The toxic impact of Phosfon D on Microsporum cookei was completely mitigated by the co-administration of ergosterol and oleic acid.
- Ergosterol and oleic acid appear to counteract the fungicidal properties of Phosfon D.
Conclusions:
- Phosfon D exhibits broad-spectrum antifungal activity.
- Ergosterol and oleic acid play a crucial role in the susceptibility or resistance of Microsporum cookei to Phosfon D.
- These findings suggest that Phosfon D may target fungal cell membrane synthesis or integrity.