Cell division in yeasts : III. The biased, asymmetric location of the septum in the fission yeast cell, Schizosaccharomyces pombe |
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Authors: | Byron F. Johnson G. B. Calleja Isabelle Boisclair Bong Y. Yoo |
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Affiliation: | Public Health Research Institute of Kobe City, Kano-cho, Ikuta-ku, Kobe 650, Japan |
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Abstract: | Living, dividing, log-phase fission yeast cells (178 pairs) were photographed by fluorescence microscopy of their fluorochromed walls. Analysis of the lengths, volumes, and fission scar distributions of these cells led to the following conclusions: the new septum is sited asymmetrically at division by length parameters, and the asymmetric site is biased toward the newer end (that end generated by the previous cell division) of the dividing cells. The volumes of the resultant sibs, however, are equal. Some rather simple models for siting of the septum are presumed untenable on the basis of the evidence. |
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