Nuclear and cytoplasmic cross-resistance and correlated sensitivity to DNA intercalating drugs in a petite-negative yeast

Esteban Celis, Jaime Mas, Aurora Brunner

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Ethidium bromide and acriflavin-resistant mutants of petite-negative yeast Kluyveromyces lactis were prepared. One kind of nuclear mutation (EBR1) gave resistance to ethidium bromide and correlated sensitivity towards acriflavin. Another nuclear mutation (EBR2) did not affect ‘natural’ resistance of this yeast towards 15 μM acriflavin. Both nuclear mutations mapped at different loci, suggesting lack of linkage. Cytoplasmic mutants resistant to these two drugs were unstable when grown in complete media with dextrose, reverting to a wild-type resistance genotype. When grown in glycerol-containing media these mutants maintained their cytoplasmic drug-resistance conferring factors.

Original languageEnglish (US)
Pages (from-to)59-69
Number of pages11
JournalGenetical Research
Volume25
Issue number1
DOIs
StatePublished - Jan 1 1975
Externally publishedYes

Fingerprint

Ethidium
Yeasts
Mutation
DNA
Pharmaceutical Preparations
Kluyveromyces
R Factors
Drug Resistance
Innate Immunity
Glycerol
Genotype
Glucose

ASJC Scopus subject areas

  • Genetics

Cite this

Nuclear and cytoplasmic cross-resistance and correlated sensitivity to DNA intercalating drugs in a petite-negative yeast. / Celis, Esteban; Mas, Jaime; Brunner, Aurora.

In: Genetical Research, Vol. 25, No. 1, 01.01.1975, p. 59-69.

Research output: Contribution to journalArticle

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