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Reference - PMID:762020 - Uncontrolled septation in a cell division cycle mutant of the fission yeast Schizosaccharomyces pombe.

Reference summary

PubMed ID
PMID:762020
Title
Uncontrolled septation in a cell division cycle mutant of the fission yeast Schizosaccharomyces pombe.
Authors
Minet M, Nurse P, Thuriaux P, Mitchison JM
Citation
J Bacteriol 1979 Jan;137(1):440-6
Publication year
1979
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.

Annotation

GO biological process

GO:0010974 - negative regulation of division septum assembly

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Single locus phenotype

FYPO:0005055 - binucleate multiseptate cell, septa grouped

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Genotypes:

FYPO:0000651 - increased duration of septum assembly

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Genotypes:

FYPO:0001226 - inviable mononucleate vegetative cell with mislocalized septum and anucleate compartment

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