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    J Bacteriol. 1979 Jan;137(1):440-6.

    Uncontrolled septation in a cell division cycle mutant of the fission yeast Schizosaccharomyces pombe.

    Abstract

    A temperature-sensitive Schizosaccharomyces pombe mutant, cdc16-116, has been isolated which undergoes uncontrolled septation during its cell division cycle. The mutant accumulates two types of cells after 3 h of growth at the restrictive temperature: (i) type I cells (85% of the population), which complete nuclear division and then form up to five septa between the divided nuclei; and (ii) type II cells (15% of the population), which form an asymmetrically situated septum in the absence of any nuclear division. cdc16-116 is a monogenic recessive mutation unlinked to any previously known cdc gene of S. pombe. It is not affected in a previously reported control by which septation is dependent upon completion of nuclear division. We propose the cdc16-116 is unable to complete septum formation and proceed to cell separation and is also defective in a control which prevents the manufacture of more than one septum in each cell cycle.

    PMID:
    762020
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC218468
    Free PMC Article

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