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Shape and Structure of the Ascospores of Hanseniaspora uvarum

N. J. W. Kreger-van Rij and Donald G. Ahearn
Mycologia
Vol. 60, No. 3 (May - Jun., 1968), pp. 604-612
DOI: 10.2307/3757427
Stable URL: http://www.jstor.org/stable/3757427
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Shape and Structure of the Ascospores of Hanseniaspora uvarum
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Abstract

The ascospores of H. uvarum were studied with the light and the electron microscope. All of the 9 strains examined sporulated abundantly on Difco malt extract agar. The spores possessed a ledge, often indistinct in young cultures, but clearly visible in older ones. The spores are saturn-to helmet-shaped with a convex base, sometimes with a slightly warty appearance. These characteristics were compared with those of H. valbyensis and taxonomic histories discussed.

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