Abstract
Sporulation inSchwanniomyces alluvius appeared to be preceded by fusion of a mother and a daughter cell. Meiosis probably occurred in the mother cell and one or two spores were formed in the latter. A study of thin sections showed that the spore wall developed from a prospore wall. The mature spore wall consisted of a broad light inner layer and a thinner dark outer layer including warts. An equatorial ledge was present. During germination in the ascus, a new light inner layer was formed and the old layers of the spore wall partly broke up. Ascospores in a strain ofS. persoonii had a different wall structure in that the dark layer had changed into light areas separated by dark material which formed bulges at the surface.
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Kreger-van Rij, N.J.W. Electron microscopy of sporulation inSchwanniomyces alluvius . Antonie van Leeuwenhoek 43, 55–64 (1977). https://doi.org/10.1007/BF02316210
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DOI: https://doi.org/10.1007/BF02316210