Nonsterol related resistance in Ustilago maydis to the polyene antifungals, amphotericin B and nystatin

Phytochemistry. 1996 Jun;42(3):637-9. doi: 10.1016/0031-9422(96)00037-4.

Abstract

Two amphotericin B resistant mutants of Ustilago maydis were isolated following direct selection from a wild-type population. Each mutant was demonstrated to be cross-resistant to nystatin yet remained sensitive to azoles. Sterol analysis indicated a sterol profile similar to the parent strain, precluding the involvement of an alteration in ergosterol biosynthesis as the cause of polyene resistance.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amphotericin B / pharmacology*
  • Antifungal Agents / pharmacology*
  • Drug Resistance, Microbial
  • Fungicides, Industrial / pharmacology
  • Microbial Sensitivity Tests
  • Nystatin / pharmacology*
  • Sterols / analysis
  • Triazoles / pharmacology
  • Ustilago / drug effects*
  • Ustilago / genetics
  • Ustilago / isolation & purification

Substances

  • Antifungal Agents
  • Fungicides, Industrial
  • Sterols
  • Triazoles
  • Nystatin
  • triadimefon
  • Amphotericin B