Document Detail


Analysis of the chemotactic response during aggregation in Dictyostelium minutum.
MedLine Citation:
PMID:  944706     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Measurements on the chemotactic aggregation of the amoebae of the cellular slime mould Dictyostelium minutum are reported. With the aid of previous theoretical results, the observed patterns of early aggregation on 2- and 3-dimensional substrates are interpreted. There is no statistically significant difference in the patterns in the 2 cases. The results suggest that the simplest plausible chemotactic law for this system is the relative gradient law in which the response velocity of the amoebae is proportional to the relative acrasin gradient. The results also suggest that the differentiation of the founder cell, which initiates aggregation, occurs before all cells have acquired chemotactic sensitivity. A diffusible chemical may be involved in the development of the latter.
Authors:
R K Raman
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of cell science     Volume:  20     ISSN:  0021-9533     ISO Abbreviation:  J. Cell. Sci.     Publication Date:  1976 May 
Date Detail:
Created Date:  1976-08-02     Completed Date:  1976-08-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0052457     Medline TA:  J Cell Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  497-512     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Cell Aggregation
Chemotaxis*
Dictyostelium / growth & development,  physiology*
Kinetics
Models, Biological
Myxomycetes / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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