A Novel Killer Yeast Effective on Schizosaccharomyces pombe

To control the extent of deacidification in wine making, we screened Kluyveromyces strains by their activity to kill the fission yeast Schizosaccharomyces pombe. Among Kluyveromyces IFO strains tested, K. waltii IFO 1666T was shown to have the desired activity. The killer spectrum of this strain was...

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Veröffentlicht in:	Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 1997-03, Vol.61 (3), p.563-564
Hauptverfasser:	Kono, Isato, Himeno, Kunio
Format:	Artikel
Sprache:	eng
Schlagworte:	Ammonium Sulfate - chemistry Biological and medical sciences Chemical Fractionation Culture Media Endopeptidases - toxicity Fermented food industries Food industries Fundamental and applied biological sciences. Psychology Fungal Proteins - toxicity Hydrogen-Ion Concentration killer Killer Factors, Yeast Kluyveromyces Kluyveromyces - metabolism Molecular Weight Mycotoxins - toxicity Schizosaccharomyces - drug effects Schizosaccharomyces - metabolism Schizosaccharomyces pombe Ultrafiltration Wines and vinegars yeast
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Beschreibung
Zusammenfassung:	To control the extent of deacidification in wine making, we screened Kluyveromyces strains by their activity to kill the fission yeast Schizosaccharomyces pombe. Among Kluyveromyces IFO strains tested, K. waltii IFO 1666T was shown to have the desired activity. The killer spectrum of this strain was different from those of the other known killer yeasts. The activity was found in the culture medium and was lost by protease treatment. The activity was associated with the precipitate obtained by an increase of ammonium sulfate concentration. The toxin was larger than 10,000 daltons as judged by ultrafiltration.
ISSN:	0916-8451 1347-6947
DOI:	10.1271/bbb.61.563