Document Detail


Reorganization of the growth pattern of Schizosaccharomyces pombe in invasive filament formation.
MedLine Citation:
PMID:  20870879     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The organization and control of polarized growth through the cell cycle of Schizosaccharomyces pombe, a single-celled eukaryote, have been studied extensively. We have investigated the changes in these processes when S. pombe differentiates to form multicellular invasive mycelia and have found striking alterations to the behavior of some of the key regulatory proteins. Cells at the tips of invading filaments are considerably more elongated than cells growing singly and grow at one pole only. The filament tip follows a strict direction of growth through multiple cell cycles. A group of proteins involved in the growth process and actin regulation, comprising Spo20, Bgs4, activated Cdc42, and Crn1, are all concentrated at the growing tip, unlike their distribution at both ends of single cells. In contrast, several proteins implicated in microtubule-dependent organization of growth, including Tea1, Tea4, Mod5, and Pom1, all show the opposite effect and are relatively depleted at the growing end and enriched at the nongrowing end, although Tea1 appears to continue to be delivered to both ends. A third group acting at different stages of the cell cycle, including Bud6, Rga4, and Mid1, localize similarly in filaments and single cells, while Nif1 shows a reciprocal localization to Pom1.
Authors:
James Dodgson; William Brown; Carlos A Rosa; John Armstrong
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-09-24
Journal Detail:
Title:  Eukaryotic cell     Volume:  9     ISSN:  1535-9786     ISO Abbreviation:  Eukaryotic Cell     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-03     Completed Date:  2011-02-23     Revised Date:  2011-07-28    
Medline Journal Info:
Nlm Unique ID:  101130731     Medline TA:  Eukaryot Cell     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1788-97     Citation Subset:  IM    
Affiliation:
University of Sussex, Falmer, Brighton, England.
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MeSH Terms
Descriptor/Qualifier:
Gene Deletion
Genes, Fungal
Microtubule-Associated Proteins / genetics,  metabolism
Mycelium / growth & development,  metabolism
Schizosaccharomyces / cytology,  genetics,  growth & development*,  metabolism
Schizosaccharomyces pombe Proteins / genetics,  metabolism
Species Specificity
Time-Lapse Imaging
Grant Support
ID/Acronym/Agency:
G0400062//Medical Research Council; //Biotechnology and Biological Sciences Research Council
Chemical
Reg. No./Substance:
0/Microtubule-Associated Proteins; 0/Schizosaccharomyces pombe Proteins; 0/Tea1 protein, S pombe
Comments/Corrections

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