Sexual co-flocculation and asexual self-flocculation of heterothallic fission-yeast cells(Schizosaccharomyces pombe)

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Abstract
Culturing conditions have been found that engender flocculation of strains 975h+ and 972h− of the fission yeast Schizosaccharomyces pombe Lindner. Both strains separately exhibit asexual self-flocculation and together, sexual co-flocculation. Flocculation is glucose repressible, but that repression is leaky, because self-flocculation can occur during the late logarithmic phase of growth before either of the C or N sources are depleted.