MATING REACTION IN HANSENULA WINGEI

Sterols as Components in the Mating Reaction of Hansenula Wingei.

Hunt, D. E. (Charles V. Chapin Hospital, Providence, R.I.) and P. L. Carpenter. Sterols as components in the mating reaction of Hansenula wingei. J. Bacteriol. 86:845-847. 1963.-Agglutinative mating strains 5 and 21 of the yeast Hansenula wingei did not agglutinate after the cells of these two strains were treated with nystatin. The agglutination-inhibiting action of this antibiotic could not b...

Molecular basis of mating in the yeast hansenula wingei.

Mating reaction in the yeast Hansenula wingei; preliminary observations and quantitation.

Wickerham (1956) has described a new species, Hansenula wingei, which exhibits a rather unusual mating reaction. When vegetative haploid cells of the two mating types are mixed, a strong agglutination reaction may occur. On agar, the cells set to a solid mass which resists further mixing and adheres tenaciously to the instrument used for mixing the cells. When the mass of cells is placed in wat...

Protein as a specific cell surface component in the mating reaction of Hansenula wingei.

a hydrophobic cell mass. This phenomenon has been developed into a quantitative assay for agglutinability which has made it possible to study the mechanism of this attraction (Brock, J. Bacteriol., 75, 697, 1958). Work to be published elsewhere has shown that the two mating types do not differ in electrostatic charge or degree of hydration. Rather, the agglutination seems to be related to the p...

Meiosis in Hansenula holstii and H. wingei.

Diploid isolates of Hansenula holstii Wick. and H. wingei Wick. usually produce two or three ascospores per ascus. An unusual nuclear event during meiosis might account for less than the expected number of four. When acridine orange or Feulgen staining was used, meiosis in both species followed the pattern established in higher plants and animals. Deoxyribonuclease treatment destroyed nuclear s...