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. 1979 Oct;16(4):486-90.
doi: 10.1128/AAC.16.4.486.

Lipid composition and sensitivity of Prototheca wickerhamii to membrane-active antimicrobial agents

I J Sud, D S Feingold

Lipid composition and sensitivity of Prototheca wickerhamii to membrane-active antimicrobial agents

I J Sud et al. Antimicrob Agents Chemother. 1979 Oct.

Abstract

The lipid composition of Prototheca wickerhamii ATCC 16529 is presented and discussed in relation to the unique susceptibility of the organism to drugs of three membrane-active antimicrobial classes: the polyenes, the polymyxins, and the imidazoles. The presence of ergosterol in the neutral lipid fraction of the membrane is likely responsible for the exquisite susceptibility to amphotericin B. The presence of a large quantity of free fatty acids in the membrane appears responsible for imidazole susceptibility. The membrane determinants of polymyxin B susceptibility are less well defined.

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