Document Detail

Circus movement in dissociated embryonic cells of a teleost, Oryzias latipes.
MedLine Citation:
PMID:  240865     Owner:  NLM     Status:  MEDLINE    
The dissociated early embryonic cells of the fresh water fish, Oryzias latipes, protrude hyaline lobopodia, which tend to rotate around the cell circumference in a propagating wave. Cells from late blastula or gastrula continuously show this "circus movement", while most cells up to early blastula are rounded. The linear velocity of the lobopodium was estimated by means of time-lapse cinemicrography. The velocity increases slightly as cell diameter increases. The effects of pH, temperature and osmotic pressure of the immersion media on the movement were also quantitatively investigated. Cells become rounded and do not form lobopodial blebs when immersed in media below pH 5. The velocity is reduced by decreasing temperature, but the movement continues even at 5 degrees C. Cells placed in hypertonic salt solutions become crenated and do not continuously demonstrate the circus movement.
N Fujinami; T Kageyama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cell science     Volume:  19     ISSN:  0021-9533     ISO Abbreviation:  J. Cell. Sci.     Publication Date:  1975 Oct 
Date Detail:
Created Date:  1975-12-29     Completed Date:  1975-12-29     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0052457     Medline TA:  J Cell Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  169-82     Citation Subset:  IM    
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MeSH Terms
Cell Movement*
Hydrogen-Ion Concentration
Hypotonic Solutions
Osmotic Pressure
Ovum / cytology*,  physiology
Reg. No./Substance:
0/Hypotonic Solutions

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