Document Detail

Formation of pattern in regenerating tissue pieces of Hydra attenuata. III. The shaping of the body column.
MedLine Citation:
PMID:  6500175     Owner:  NLM     Status:  MEDLINE    
Excised pieces of hydra body tissue of varying size and shape regenerate into cylinders with a head and foot at opposite ends. The numbers of cells along the axial and circumferential dimensions were determined before, during, and after regeneration. The main process in shaping the excised tissue into a body column was found to be a rearrangement of the cells. When regenerates of different size were measured, the proportions of the body columns were found to vary, such that the smaller the animal the squatter the body column was. The presence of the head in regenerates was necessary for the formation or maintenance of the cylindrical shape, while the size of the head determined the proportions of the cylinder. The formation of a gradient of adhesivity induced by the developing head is suggested as the basis for the rearrangement of the cells into the cylindrical form.
M P Bode; H R Bode
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Developmental biology     Volume:  106     ISSN:  0012-1606     ISO Abbreviation:  Dev. Biol.     Publication Date:  1984 Dec 
Date Detail:
Created Date:  1985-01-23     Completed Date:  1985-01-23     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0372762     Medline TA:  Dev Biol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  315-25     Citation Subset:  IM    
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MeSH Terms
Ectoderm / cytology
Endoderm / cytology
Hydra / cytology,  physiology*
Time Factors
Grant Support

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